Add initial version of firmware
This commit is contained in:
parent
70b8a38941
commit
cac80f1c65
3
.gitmodules
vendored
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3
.gitmodules
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[submodule "firmware/colorchord"]
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path = firmware/colorchord
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url = https://github.com/cnlohr/colorchord.git
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2
firmware/.gitignore
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2
firmware/.gitignore
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*.bin
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*.out
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30
firmware/LICENSE
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30
firmware/LICENSE
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Note: This contains libraries from CM and ST that are under a different
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license than this file. See those folders respectively.
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STM32F303-based ColorChord 2.0 Build
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Copyright (c) 2015 Charles Lohr
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Roughly based off of: https://github.com/devthrash/0xWS2812
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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77
firmware/Makefile
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77
firmware/Makefile
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TARGET=main
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all: $(TARGET).bin
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PREFIX=arm-none-eabi
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CC=$(PREFIX)-gcc
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LD=$(PREFIX)-gcc
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AS=$(PREFIX)-as
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CP=$(PREFIX)-objcopy
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OD=$(PREFIX)-objdump
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OBJCOPYFLAGS = -O binary
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BIN=$(CP) -O ihex
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CCBASE = colorchord/embeddedstm32f407
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DEFS = -DSTM32F40_41xxx -DHSE_VALUE=8000000
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STARTUP = $(CCBASE)/lib/startup_stm32f40_41xxx.s
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STLIB = $(CCBASE)/STM32F4xx_StdPeriph_Driver
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EMCOM = $(CCBASE)/../embeddedcommon
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MCU = cortex-m3
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MCFLAGS = -mcpu=$(MCU) -mthumb -mlittle-endian -mthumb-interwork
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STM32_INCLUDES = -Ilib -I. -I$(STLIB)/inc -I$(CCBASE)/lib
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OPTIMIZE = -Os
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CFLAGS = $(MCFLAGS) $(OPTIMIZE) $(DEFS) \
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-I. \
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$(STM32_INCLUDES) \
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-I$(EMCOM) \
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-Wl,-T,lib/stm32f410.ld
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CFLAGS+=-DDEBUG
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CFLAGS+=-I.
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AFLAGS = $(MCFLAGS)
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SRC = main.c \
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stm32f4xx_it.c \
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lib/system_stm32f4xx.c \
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lib/systems.c \
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spi2812.c \
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adc.c \
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$(STLIB)/src/misc.c \
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$(STLIB)/src/stm32f4xx_dma.c \
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$(STLIB)/src/stm32f4xx_spi.c \
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$(STLIB)/src/stm32f4xx_syscfg.c \
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$(STLIB)/src/stm32f4xx_exti.c \
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$(STLIB)/src/stm32f4xx_rcc.c \
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$(STLIB)/src/stm32f4xx_gpio.c \
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$(STLIB)/src/stm32f4xx_usart.c \
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$(STLIB)/src/stm32f4xx_adc.c \
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$(STLIB)/src/stm32f4xx_tim.c \
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$(EMCOM)/DFT32.c \
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$(EMCOM)/embeddednf.c \
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$(EMCOM)/embeddedout.c
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burn : $(TARGET).bin
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openocd -f flash.cfg #-d3
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terminal :
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openocd -f terminal.cfg
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$(TARGET).bin : $(TARGET).out
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$(CP) $(OBJCOPYFLAGS) $< $@
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$(TARGET).hex: $(EXECUTABLE)
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$(CP) -O ihex $^ $@
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$(TARGET).out : $(SRC) $(STARTUP)
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$(CC) $(CFLAGS) $^ -lm -lc -lnosys -o $@
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clean:
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rm -f $(TARGET).lst $(TARGET).out $(TARGET).hex $(TARGET).bin $(TARGET).map $(EXECUTABLE)
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159
firmware/adc.c
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159
firmware/adc.c
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#include "adc.h"
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#include <stm32f4xx_adc.h>
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#include <stm32f4xx_rcc.h>
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#include <stm32f4xx_dma.h>
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#include <stdio.h>
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#include "systems.h"
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#include <stm32f4xx.h>
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volatile uint16_t adc_buffer[2] = {0,};
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void adc_init()
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{
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ADC_CommonInitTypeDef ADC_CommonInitStruct;
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ADC_InitTypeDef ADC_InitStructure;
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GPIO_InitTypeDef GPIO_InitStruct;
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printf("ADC init\r\n");
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// Enable Clocks
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE);
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RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_DMA1, ENABLE);
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// Set up GPIO
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GPIO_InitStruct.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
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GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AN;
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GPIO_Init(GPIOA, &GPIO_InitStruct);
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// Set up timer
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TIM_TimeBaseInitTypeDef Timer_InitStruct;
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TIM_TimeBaseStructInit(&Timer_InitStruct);
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Timer_InitStruct.TIM_Prescaler = 0;
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Timer_InitStruct.TIM_CounterMode = TIM_CounterMode_Up;
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Timer_InitStruct.TIM_Period = (ADC_F_TIM / ADC_SAMPLE_RATE);
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Timer_InitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
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Timer_InitStruct.TIM_RepetitionCounter = 0;
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TIM_TimeBaseInit(TIM5, &Timer_InitStruct);
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TIM_Cmd(TIM5, ENABLE);
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TIM_OCInitTypeDef TIM_OCInitStructure;
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TIM_OCStructInit (&TIM_OCInitStructure);
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
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TIM_OCInitStructure.TIM_OCIdleState = TIM_OCNIdleState_Reset;
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TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Active;
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TIM_OC1Init (TIM5, &TIM_OCInitStructure);
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TIM_SetCompare1(TIM5, 0xFFFF);
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TIM_ITConfig(TIM5, TIM_IT_CC1, ENABLE);
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TIM_CCxCmd(TIM5, TIM_Channel_1, TIM_CCx_Enable);
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TIM_CCxNCmd(TIM5, TIM_Channel_1, TIM_CCx_Enable);
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NVIC_InitTypeDef NVIC_InitStruct;
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NVIC_InitStruct.NVIC_IRQChannel = TIM5_IRQn;
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NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0x00;
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NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0x00;
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NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStruct);
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// Set up DMA
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DMA_InitTypeDef DMA_InitStruct;
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DMA_StructInit(&DMA_InitStruct);
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DMA_DeInit(ADC_RX_DMA_STREAM);
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DMA_InitStruct.DMA_Channel = ADC_RX_DMA_CHANNEL;
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DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t) & (ADC1->DR);
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DMA_InitStruct.DMA_Memory0BaseAddr = (uint32_t)adc_buffer;
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DMA_InitStruct.DMA_DIR = DMA_DIR_PeripheralToMemory;
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DMA_InitStruct.DMA_BufferSize = 2;
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DMA_InitStruct.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
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DMA_InitStruct.DMA_MemoryInc = DMA_MemoryInc_Enable;
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DMA_InitStruct.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
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DMA_InitStruct.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
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DMA_InitStruct.DMA_Mode = DMA_Mode_Circular;
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DMA_InitStruct.DMA_Priority = DMA_Priority_High;
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DMA_InitStruct.DMA_FIFOMode = DMA_FIFOMode_Disable;
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DMA_InitStruct.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
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DMA_InitStruct.DMA_MemoryBurst = DMA_MemoryBurst_Single;
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DMA_InitStruct.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
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DMA_Init(ADC_RX_DMA_STREAM, &DMA_InitStruct);
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DMA_ITConfig(ADC_RX_DMA_STREAM, DMA_IT_TC, ENABLE);
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NVIC_InitStruct.NVIC_IRQChannel = ADC_RX_DMA_IRQn;
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NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0x00;
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NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0x00;
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NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStruct);
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DMA_Cmd(ADC_RX_DMA_STREAM, ENABLE);
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// Set up ADC
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ADC_DeInit();
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ADC_CommonStructInit(&ADC_CommonInitStruct);
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ADC_CommonInitStruct.ADC_Mode = ADC_Mode_Independent;
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ADC_CommonInitStruct.ADC_Prescaler = ADC_Prescaler_Div8;
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ADC_CommonInitStruct.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
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ADC_CommonInitStruct.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_20Cycles;
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ADC_CommonInit(&ADC_CommonInitStruct);
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ADC_StructInit(&ADC_InitStructure);
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ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
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ADC_InitStructure.ADC_ScanConvMode = ENABLE;
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ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
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ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None; // TODO: trig via event
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ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T5_CC1;
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ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
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ADC_InitStructure.ADC_NbrOfConversion = 2;
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ADC_Init(ADC1, &ADC_InitStructure);
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ADC_ITConfig(ADC1, ADC_IT_EOC, ENABLE);
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NVIC_InitStruct.NVIC_IRQChannel = ADC_IRQn;
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NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0x00;
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NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0x00;
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NVIC_InitStruct.NVIC_IRQChannelCmd = DISABLE; // !
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NVIC_Init(&NVIC_InitStruct);
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ADC_DMARequestAfterLastTransferCmd(ADC1, ENABLE);
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ADC_EOCOnEachRegularChannelCmd(ADC1, DISABLE);
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ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 1, ADC_SampleTime_28Cycles);
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ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 2, ADC_SampleTime_28Cycles);
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// Turn it all on
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ADC_Cmd(ADC1, ENABLE);
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ADC_DMACmd(ADC1, ENABLE);
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printf("adc init done.\r\n");
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printf("ADC CR1: %08x, CR2: %08x\r\n", ADC1->CR1, ADC1->CR2);
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printf("ADC SQR1: %08x, SQR3: %08x\r\n", ADC1->SQR1, ADC1->SQR3);
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printf("DMA2 S0CR: %08x\r\n", ADC_RX_DMA_STREAM->CR);
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printf("ADC init complete.\r\n");
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}
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void DMA2_Stream0_IRQHandler()
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{
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int sample;
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DMA_ClearFlag(ADC_RX_DMA_STREAM, DMA_FLAG_TCIF0);
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//printf("[DMA-IRQ] %d, %d\r\n", adc_buffer[0], adc_buffer[1]);
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sample = 2048 - ((adc_buffer[0] + adc_buffer[1]) / 2);
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GotSample(sample);
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}
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// Not used:
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void ADC_IRQHandler()
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{
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ADC_ClearFlag(ADC1, ADC_FLAG_EOC);
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//printf("[ADC-IRQ] %d, %d\r\n", adc_buffer[0], adc_buffer[1]);
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}
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void TIM5_IRQHandler()
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{
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TIM_ClearFlag(TIM5, TIM_FLAG_CC1);
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// I would really like to this in HW via events, but somehow it's broken...
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ADC_SoftwareStartConv(ADC1);
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}
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15
firmware/adc.h
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15
firmware/adc.h
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#ifndef _ADC_H
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#define _ADC_H
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#define ADC_F_TIM 50000000
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#define ADC_SAMPLE_RATE 44130
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#define ADC_RX_DMA_CHANNEL DMA_Channel_0
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#define ADC_RX_DMA_STREAM DMA2_Stream0
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#define ADC_RX_DMA_IRQn DMA2_Stream0_IRQn
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// TODO: Update the IRQ handler in adc.c when updating the stream / channel.
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void adc_init();
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#endif
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10
firmware/ccconfig.h
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10
firmware/ccconfig.h
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#ifndef _CCCONFIG_H
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#define _CCCONFIG_H
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#define CCEMBEDDED
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#define NUM_LIN_LEDS 60
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#define USE_NUM_LIN_LEDS 60
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#define DFREQ 44130
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#endif
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1
firmware/colorchord
Submodule
1
firmware/colorchord
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Subproject commit 9cae6dc38d288618d7a7163a0e9abcb4fb9234a2
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26
firmware/flash.cfg
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26
firmware/flash.cfg
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set TRANSPORT hla_swd
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source [find interface/ftdi/olimex-arm-usb-ocd-h.cfg]
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source [find target/stm32f4x.cfg]
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#reset_config none separate
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#reset_config srst_push_pull
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#separate trst_push_pull
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#reset_config srst_nogate
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init
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reset halt
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halt 20
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reset
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sleep 10
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reset halt
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flash write_image erase main.bin 0x08000000
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sleep 10
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reset
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sleep 10
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#arm semihosting enable
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reset run
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sleep 10
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shutdown
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114
firmware/lib/stm32f410.ld
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114
firmware/lib/stm32f410.ld
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/*. Entry Point *./
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ENTRY( Reset_Handler )
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/* Highest address of the user mode stack .*/
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_estack = 0x20008000; /* end of 32K RAM */
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/* Generate a link error if heap and s tack dont fit int o RAM */
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_Min_Heap_Size = 0; /* required amount of heap .*/
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_Min_Stack_Size = 0x200; /* required amount of stack .*/
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MEMORY
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{
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FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 128K
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||||||
|
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 32K
|
||||||
|
MEMORY_B1 (rx) : ORIGIN = 0x60000000, LENGTH = 0K
|
||||||
|
/*RAM_BACKUP (rw) : ORIGIN = 0x40024000, LENGTH = 4K*/
|
||||||
|
}
|
||||||
|
|
||||||
|
SECTIONS
|
||||||
|
{
|
||||||
|
|
||||||
|
/* The startup code goes first into FLASH */
|
||||||
|
.isr_vector :
|
||||||
|
{
|
||||||
|
. = ALIGN(4);
|
||||||
|
KEEP(*(.isr_vector)) /* Startup code */
|
||||||
|
. = ALIGN(4);
|
||||||
|
} >FLASH
|
||||||
|
|
||||||
|
/* The program code and other data goes into FLASH */
|
||||||
|
.text :
|
||||||
|
{
|
||||||
|
. = ALIGN(4);
|
||||||
|
*(.text) /* .text sections (code) */
|
||||||
|
*(.text*) /* .text* sections (code) */
|
||||||
|
*(.rodata) /* .rodata sections (constants, strings, etc.) */
|
||||||
|
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
|
||||||
|
*(.glue_7) /* glue arm to thumb code */
|
||||||
|
*(.glue_7t) /* glue thumb to arm code */
|
||||||
|
*(.eh_frame)
|
||||||
|
|
||||||
|
KEEP (*(.init))
|
||||||
|
KEEP (*(.fini))
|
||||||
|
|
||||||
|
. = ALIGN(4);
|
||||||
|
_etext = .; /* define a global symbols at end of code */
|
||||||
|
} >FLASH
|
||||||
|
|
||||||
|
|
||||||
|
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
|
||||||
|
|
||||||
|
.ARM : {
|
||||||
|
__exidx_start = .;
|
||||||
|
*(.ARM.exidx*)
|
||||||
|
__exidx_end = .;
|
||||||
|
} >FLASH
|
||||||
|
|
||||||
|
.preinit_array :
|
||||||
|
{
|
||||||
|
PROVIDE_HIDDEN (__preinit_array_start = .);
|
||||||
|
KEEP (*(.preinit_array*))
|
||||||
|
PROVIDE_HIDDEN (__preinit_array_end = .);
|
||||||
|
} >FLASH
|
||||||
|
|
||||||
|
.init_array :
|
||||||
|
{
|
||||||
|
PROVIDE_HIDDEN (__init_array_start = .);
|
||||||
|
KEEP (*(SORT(.init_array.*)))
|
||||||
|
KEEP (*(.init_array*))
|
||||||
|
PROVIDE_HIDDEN (__init_array_end = .);
|
||||||
|
} >FLASH
|
||||||
|
|
||||||
|
.fini_array :
|
||||||
|
{
|
||||||
|
PROVIDE_HIDDEN (__fini_array_start = .);
|
||||||
|
KEEP (*(SORT(.fini_array.*)))
|
||||||
|
KEEP (*(.fini_array*))
|
||||||
|
PROVIDE_HIDDEN (__fini_array_end = .);
|
||||||
|
} >FLASH
|
||||||
|
|
||||||
|
/* used by the startup to initialize data */
|
||||||
|
_sidata = LOADADDR(.data);
|
||||||
|
|
||||||
|
/* Initialized data sections goes into RAM, load LMA copy after code */
|
||||||
|
.data :
|
||||||
|
{
|
||||||
|
. = ALIGN(4);
|
||||||
|
_sdata = .;
|
||||||
|
*(.data)
|
||||||
|
*(.data*)
|
||||||
|
|
||||||
|
. = ALIGN(4);
|
||||||
|
_edata = .;
|
||||||
|
} >RAM AT> FLASH
|
||||||
|
|
||||||
|
/* Uninitialized data section */
|
||||||
|
. = ALIGN(4);
|
||||||
|
.bss :
|
||||||
|
{
|
||||||
|
_sbss = .;
|
||||||
|
__bss_start__ = _sbss;
|
||||||
|
*(.bss)
|
||||||
|
*(.bss*)
|
||||||
|
*(COMMON)
|
||||||
|
|
||||||
|
. = ALIGN(4);
|
||||||
|
_ebss = .;
|
||||||
|
__bss_end__ = _ebss;
|
||||||
|
} >RAM
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
122
firmware/lib/stm32f4xx_conf.h
Normal file
122
firmware/lib/stm32f4xx_conf.h
Normal file
@ -0,0 +1,122 @@
|
|||||||
|
/**
|
||||||
|
******************************************************************************
|
||||||
|
* @file ADC/ADC_DMA/stm32f4xx_conf.h
|
||||||
|
* @author MCD Application Team
|
||||||
|
* @version V1.5.0
|
||||||
|
* @date 06-March-2015
|
||||||
|
* @brief Library configuration file.
|
||||||
|
******************************************************************************
|
||||||
|
* @attention
|
||||||
|
*
|
||||||
|
* <h2><center>© COPYRIGHT 2015 STMicroelectronics</center></h2>
|
||||||
|
*
|
||||||
|
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
|
||||||
|
* You may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at:
|
||||||
|
*
|
||||||
|
* http://www.st.com/software_license_agreement_liberty_v2
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
*
|
||||||
|
******************************************************************************
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Define to prevent recursive inclusion -------------------------------------*/
|
||||||
|
#ifndef __STM32F4xx_CONF_H
|
||||||
|
#define __STM32F4xx_CONF_H
|
||||||
|
|
||||||
|
/* Includes ------------------------------------------------------------------*/
|
||||||
|
/* Uncomment the line below to enable peripheral header file inclusion */
|
||||||
|
#include "stm32f4xx_adc.h"
|
||||||
|
#include "stm32f4xx_crc.h"
|
||||||
|
#include "stm32f4xx_dbgmcu.h"
|
||||||
|
#include "stm32f4xx_dma.h"
|
||||||
|
#include "stm32f4xx_exti.h"
|
||||||
|
#include "stm32f4xx_flash.h"
|
||||||
|
#include "stm32f4xx_gpio.h"
|
||||||
|
#include "stm32f4xx_i2c.h"
|
||||||
|
#include "stm32f4xx_iwdg.h"
|
||||||
|
#include "stm32f4xx_pwr.h"
|
||||||
|
#include "stm32f4xx_rcc.h"
|
||||||
|
#include "stm32f4xx_rtc.h"
|
||||||
|
#include "stm32f4xx_sdio.h"
|
||||||
|
#include "stm32f4xx_spi.h"
|
||||||
|
#include "stm32f4xx_syscfg.h"
|
||||||
|
#include "stm32f4xx_tim.h"
|
||||||
|
#include "stm32f4xx_usart.h"
|
||||||
|
#include "stm32f4xx_wwdg.h"
|
||||||
|
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
|
||||||
|
|
||||||
|
#if defined (STM32F429_439xx)
|
||||||
|
#include "stm32f4xx_cryp.h"
|
||||||
|
#include "stm32f4xx_hash.h"
|
||||||
|
#include "stm32f4xx_rng.h"
|
||||||
|
#include "stm32f4xx_can.h"
|
||||||
|
#include "stm32f4xx_dac.h"
|
||||||
|
#include "stm32f4xx_dcmi.h"
|
||||||
|
#include "stm32f4xx_dma2d.h"
|
||||||
|
#include "stm32f4xx_fmc.h"
|
||||||
|
#include "stm32f4xx_ltdc.h"
|
||||||
|
#include "stm32f4xx_sai.h"
|
||||||
|
#endif /* STM32F429_439xx */
|
||||||
|
|
||||||
|
#if defined (STM32F427_437xx)
|
||||||
|
#include "stm32f4xx_cryp.h"
|
||||||
|
#include "stm32f4xx_hash.h"
|
||||||
|
#include "stm32f4xx_rng.h"
|
||||||
|
#include "stm32f4xx_can.h"
|
||||||
|
#include "stm32f4xx_dac.h"
|
||||||
|
#include "stm32f4xx_dcmi.h"
|
||||||
|
#include "stm32f4xx_dma2d.h"
|
||||||
|
#include "stm32f4xx_fmc.h"
|
||||||
|
#include "stm32f4xx_sai.h"
|
||||||
|
#endif /* STM32F427_437xx */
|
||||||
|
|
||||||
|
#if defined (STM32F40_41xxx)
|
||||||
|
#include "stm32f4xx_cryp.h"
|
||||||
|
#include "stm32f4xx_hash.h"
|
||||||
|
#include "stm32f4xx_rng.h"
|
||||||
|
#include "stm32f4xx_can.h"
|
||||||
|
#include "stm32f4xx_dac.h"
|
||||||
|
#include "stm32f4xx_dcmi.h"
|
||||||
|
#include "stm32f4xx_fsmc.h"
|
||||||
|
#endif /* STM32F40_41xxx */
|
||||||
|
|
||||||
|
/* Exported types ------------------------------------------------------------*/
|
||||||
|
/* Exported constants --------------------------------------------------------*/
|
||||||
|
|
||||||
|
/* If an external clock source is used, then the value of the following define
|
||||||
|
should be set to the value of the external clock source, else, if no external
|
||||||
|
clock is used, keep this define commented */
|
||||||
|
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
|
||||||
|
|
||||||
|
|
||||||
|
/* Uncomment the line below to expanse the "assert_param" macro in the
|
||||||
|
Standard Peripheral Library drivers code */
|
||||||
|
/* #define USE_FULL_ASSERT 1 */
|
||||||
|
|
||||||
|
/* Exported macro ------------------------------------------------------------*/
|
||||||
|
#ifdef USE_FULL_ASSERT
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief The assert_param macro is used for function's parameters check.
|
||||||
|
* @param expr: If expr is false, it calls assert_failed function
|
||||||
|
* which reports the name of the source file and the source
|
||||||
|
* line number of the call that failed.
|
||||||
|
* If expr is true, it returns no value.
|
||||||
|
* @retval None
|
||||||
|
*/
|
||||||
|
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
|
||||||
|
/* Exported functions ------------------------------------------------------- */
|
||||||
|
void assert_failed(uint8_t* file, uint32_t line);
|
||||||
|
#else
|
||||||
|
#define assert_param(expr) ((void)0)
|
||||||
|
#endif /* USE_FULL_ASSERT */
|
||||||
|
|
||||||
|
#endif /* __STM32F4xx_CONF_H */
|
||||||
|
|
||||||
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||||
1222
firmware/lib/system_stm32f4xx.c
Normal file
1222
firmware/lib/system_stm32f4xx.c
Normal file
File diff suppressed because it is too large
Load Diff
105
firmware/lib/system_stm32f4xx.h
Normal file
105
firmware/lib/system_stm32f4xx.h
Normal file
@ -0,0 +1,105 @@
|
|||||||
|
/**
|
||||||
|
******************************************************************************
|
||||||
|
* @file system_stm32f4xx.h
|
||||||
|
* @author MCD Application Team
|
||||||
|
* @version V1.5.0
|
||||||
|
* @date 06-March-2015
|
||||||
|
* @brief CMSIS Cortex-M4 Device System Source File for STM32F4xx devices.
|
||||||
|
******************************************************************************
|
||||||
|
* @attention
|
||||||
|
*
|
||||||
|
* <h2><center>© COPYRIGHT 2015 STMicroelectronics</center></h2>
|
||||||
|
*
|
||||||
|
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
|
||||||
|
* You may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at:
|
||||||
|
*
|
||||||
|
* http://www.st.com/software_license_agreement_liberty_v2
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
*
|
||||||
|
******************************************************************************
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** @addtogroup CMSIS
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** @addtogroup stm32f4xx_system
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Define to prevent recursive inclusion
|
||||||
|
*/
|
||||||
|
#ifndef __SYSTEM_STM32F4XX_H
|
||||||
|
#define __SYSTEM_STM32F4XX_H
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** @addtogroup STM32F4xx_System_Includes
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
/** @addtogroup STM32F4xx_System_Exported_types
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** @addtogroup STM32F4xx_System_Exported_Constants
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** @addtogroup STM32F4xx_System_Exported_Macros
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** @addtogroup STM32F4xx_System_Exported_Functions
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
extern void SystemInit(void);
|
||||||
|
extern void SystemCoreClockUpdate(void);
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /*__SYSTEM_STM32F4XX_H */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||||
264
firmware/lib/systems.c
Normal file
264
firmware/lib/systems.c
Normal file
@ -0,0 +1,264 @@
|
|||||||
|
#include <stdint.h>
|
||||||
|
#include "systems.h"
|
||||||
|
#include <string.h>
|
||||||
|
#ifdef STM32F30X
|
||||||
|
#include <stm32f30x.h>
|
||||||
|
#include <stm32f30x_rcc.h>
|
||||||
|
#include <stm32f30x_gpio.h>
|
||||||
|
#elif defined( STM32F40_41xxx )
|
||||||
|
#include <stm32f4xx.h>
|
||||||
|
#include <stm32f4xx_rcc.h>
|
||||||
|
#include <stm32f4xx_gpio.h>
|
||||||
|
#endif
|
||||||
|
#include <core_cm4.h>
|
||||||
|
#include <core_cmFunc.h>
|
||||||
|
|
||||||
|
extern RCC_ClocksTypeDef RCC_Clocks;
|
||||||
|
|
||||||
|
//For precise timing.
|
||||||
|
volatile unsigned int *DWT_CYCCNT = (volatile unsigned int *)0xE0001004; //address of the register
|
||||||
|
volatile unsigned int *SCB_DEMCR = (volatile unsigned int *)0xE000EDFC; //address of the register
|
||||||
|
volatile unsigned int *DWT_CONTROL = (volatile unsigned int *)0xE0001000; //address of the register
|
||||||
|
|
||||||
|
void send_openocd_command(int command, void *message)
|
||||||
|
{
|
||||||
|
#ifdef DEBUG
|
||||||
|
asm("mov r0, %[cmd];"
|
||||||
|
"mov r1, %[msg];"
|
||||||
|
"bkpt #0xAB"
|
||||||
|
:
|
||||||
|
: [cmd] "r" (command), [msg] "r" (message)
|
||||||
|
: "r0", "r1", "memory");
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void send_text( const char * text )
|
||||||
|
{
|
||||||
|
uint32_t m[] = { 2, (uint32_t)text, strlen(text) };
|
||||||
|
send_openocd_command(0x05, m);
|
||||||
|
}
|
||||||
|
|
||||||
|
int __attribute__((used)) _write (int fd, const void *buf, size_t count)
|
||||||
|
{
|
||||||
|
//uint32_t m[] = { 2, (uint32_t)buf, count };
|
||||||
|
//send_openocd_command(0x05, m);
|
||||||
|
int i;
|
||||||
|
|
||||||
|
for (i=count; i > 0; --i) {
|
||||||
|
while (!(USART1->SR & USART_SR_TXE));
|
||||||
|
USART1->DR = (uint16_t)(*((char*) buf) & 0x01FF);
|
||||||
|
buf++;
|
||||||
|
}
|
||||||
|
|
||||||
|
return count;
|
||||||
|
}
|
||||||
|
|
||||||
|
int __attribute__((used)) _read(int fd, void *buf, size_t count)
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
|
||||||
|
for (i=0; i < count; ++i) {
|
||||||
|
while (!(USART1->SR & USART_SR_RXNE));
|
||||||
|
*((char*) buf) = USART1->DR;
|
||||||
|
_write(0, buf, 1);
|
||||||
|
if (*((char*) buf) == '\r')
|
||||||
|
break;
|
||||||
|
buf++;
|
||||||
|
}
|
||||||
|
i++;
|
||||||
|
|
||||||
|
return i;
|
||||||
|
}
|
||||||
|
|
||||||
|
void __attribute__((used)) * _sbrk(int incr) {
|
||||||
|
extern char _ebss; // Defined by the linker
|
||||||
|
static char *heap_end;
|
||||||
|
char *prev_heap_end;
|
||||||
|
|
||||||
|
|
||||||
|
if (heap_end == 0) {
|
||||||
|
heap_end = &_ebss;
|
||||||
|
}
|
||||||
|
prev_heap_end = heap_end;
|
||||||
|
|
||||||
|
char * stack = (char*) __get_MSP();
|
||||||
|
if (heap_end + incr > stack)
|
||||||
|
{
|
||||||
|
return (void*)(-1);
|
||||||
|
}
|
||||||
|
|
||||||
|
heap_end += incr;
|
||||||
|
|
||||||
|
return (void*) prev_heap_end;
|
||||||
|
}
|
||||||
|
|
||||||
|
void _delay_us(uint32_t us) {
|
||||||
|
if( us ) us--; //Approximate extra overhead time.
|
||||||
|
us *= RCC_Clocks.HCLK_Frequency/1000000;
|
||||||
|
*SCB_DEMCR = *SCB_DEMCR | 0x01000000;
|
||||||
|
*DWT_CYCCNT = 0; // reset the counter
|
||||||
|
*DWT_CONTROL = *DWT_CONTROL | 1 ; // enable the counter
|
||||||
|
while( *DWT_CYCCNT < us );
|
||||||
|
}
|
||||||
|
|
||||||
|
void ConfigureUART()
|
||||||
|
{
|
||||||
|
GPIO_InitTypeDef GPIO_InitStruct;
|
||||||
|
USART_InitTypeDef USART_InitStruct;
|
||||||
|
|
||||||
|
// Enable clock for GPIOB
|
||||||
|
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
|
||||||
|
|
||||||
|
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_USART1);
|
||||||
|
GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_USART1);
|
||||||
|
|
||||||
|
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
|
||||||
|
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
|
||||||
|
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
|
||||||
|
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
|
||||||
|
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_100MHz;
|
||||||
|
GPIO_Init(GPIOB, &GPIO_InitStruct);
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Enable clock for USART1 peripheral
|
||||||
|
*/
|
||||||
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Set Baudrate to value you pass to function
|
||||||
|
* Disable Hardware Flow control
|
||||||
|
* Set Mode To TX and RX, so USART will work in full-duplex mode
|
||||||
|
* Disable parity bit
|
||||||
|
* Set 1 stop bit
|
||||||
|
* Set Data bits to 8
|
||||||
|
*
|
||||||
|
* Initialize USART1
|
||||||
|
* Activate USART1
|
||||||
|
*/
|
||||||
|
USART_InitStruct.USART_BaudRate = 115200;
|
||||||
|
USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
|
||||||
|
USART_InitStruct.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
|
||||||
|
USART_InitStruct.USART_Parity = USART_Parity_No;
|
||||||
|
USART_InitStruct.USART_StopBits = USART_StopBits_1;
|
||||||
|
USART_InitStruct.USART_WordLength = USART_WordLength_8b;
|
||||||
|
USART_Init(USART1, &USART_InitStruct);
|
||||||
|
USART_Cmd(USART1, ENABLE);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Enable RX interrupt
|
||||||
|
*/
|
||||||
|
//USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Set Channel to USART1
|
||||||
|
* Set Channel Cmd to enable. That will enable USART1 channel in NVIC
|
||||||
|
* Set Both priorities to 0. This means high priority
|
||||||
|
*
|
||||||
|
* Initialize NVIC
|
||||||
|
*/
|
||||||
|
/*NVIC_InitStruct.NVIC_IRQChannel = USART1_IRQn;
|
||||||
|
NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
|
||||||
|
NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0;
|
||||||
|
NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0;
|
||||||
|
NVIC_Init(&NVIC_InitStruct);*/
|
||||||
|
}
|
||||||
|
|
||||||
|
void ConfigureLED()
|
||||||
|
{
|
||||||
|
ConfigureGPIO( LEDPIN, INOUT_OUT );
|
||||||
|
}
|
||||||
|
|
||||||
|
uint8_t GetGPIOFromString( const char * str )
|
||||||
|
{
|
||||||
|
int mode = 0;
|
||||||
|
int port = -1;
|
||||||
|
int pin = -1;
|
||||||
|
const char * st = str;
|
||||||
|
for( ; *st; st++ )
|
||||||
|
{
|
||||||
|
char c = *st;
|
||||||
|
if( mode == 0 )
|
||||||
|
{
|
||||||
|
if( c >= 'A' && c <= 'F' )
|
||||||
|
{
|
||||||
|
port = c - 'A';
|
||||||
|
mode = 2;
|
||||||
|
}
|
||||||
|
else if( c >= 'a' && c <= 'f' )
|
||||||
|
{
|
||||||
|
port = c - 'a';
|
||||||
|
mode = 2;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else if( mode == 2 )
|
||||||
|
{
|
||||||
|
if( c >= '0' && c <= '9' )
|
||||||
|
{
|
||||||
|
pin = 0;
|
||||||
|
mode = 3;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if( mode == 3 )
|
||||||
|
{
|
||||||
|
if( c >= '0' && c <= '9' )
|
||||||
|
{
|
||||||
|
pin = pin * 10;
|
||||||
|
pin+= c - '0';
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if( port > 0 && pin > 0 && port <= 6 && pin <= 15)
|
||||||
|
{
|
||||||
|
return (port<<4)|pin;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
return 0xff;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void ConfigureGPIO( uint8_t gpio, int parameters )
|
||||||
|
{
|
||||||
|
GPIO_InitTypeDef GPIO_InitStructure;
|
||||||
|
|
||||||
|
/* Enable the GPIO_LED Clock */
|
||||||
|
#ifdef STM32F30X
|
||||||
|
RCC_AHBPeriphClockCmd( 1<<(17+(gpio>>4)), ENABLE);
|
||||||
|
#elif defined( STM32F40_41xxx )
|
||||||
|
RCC_AHB1PeriphClockCmd( 1<<((gpio>>4)), ENABLE);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
if( parameters & DEFAULT_VALUE_FLAG )
|
||||||
|
{
|
||||||
|
GPIOOn( gpio );
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
GPIOOff( gpio );
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Configure the GPIO_LED pin */
|
||||||
|
GPIO_InitStructure.GPIO_Pin = 1<<(gpio&0xf);
|
||||||
|
GPIO_InitStructure.GPIO_Mode = (parameters&INOUT_FLAG)?GPIO_Mode_OUT:GPIO_Mode_IN;
|
||||||
|
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
|
||||||
|
GPIO_InitStructure.GPIO_PuPd = (parameters&PUPD_FLAG)?( (parameters&PUPD_UP)?GPIO_PuPd_UP:GPIO_PuPd_DOWN ):GPIO_PuPd_NOPULL;
|
||||||
|
|
||||||
|
#ifdef STM32F30X
|
||||||
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
|
||||||
|
#elif defined( STM32F40_41xxx )
|
||||||
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
GPIO_Init(GPIOOf(gpio), &GPIO_InitStructure);
|
||||||
|
}
|
||||||
|
|
||||||
65
firmware/lib/systems.h
Normal file
65
firmware/lib/systems.h
Normal file
@ -0,0 +1,65 @@
|
|||||||
|
#ifndef _SYSTEMS_H
|
||||||
|
#define _SYSTEMS_H
|
||||||
|
|
||||||
|
void send_openocd_command(int command, void *message);
|
||||||
|
void send_text( const char * text );
|
||||||
|
void _delay_us(uint32_t us);
|
||||||
|
|
||||||
|
|
||||||
|
typedef uint8_t gpio;
|
||||||
|
|
||||||
|
gpio GetGPIOFromString( const char * str );
|
||||||
|
|
||||||
|
|
||||||
|
#define DEFAULT_VALUE_FLAG 0x00000001
|
||||||
|
#define DEFAULT_ON 0x00000001
|
||||||
|
#define DEFAULT_OFF 0x00000000
|
||||||
|
|
||||||
|
#define INOUT_FLAG 0x00000002
|
||||||
|
#define INOUT_OUT 0x00000002
|
||||||
|
#define INOUT_IN 0x00000000
|
||||||
|
|
||||||
|
#define PUPD_FLAG 0x0000000C
|
||||||
|
#define PUPD_NONE 0x00000000
|
||||||
|
#define PUPD_UP 0x00000004
|
||||||
|
#define PUPD_DOWN 0x00000008
|
||||||
|
|
||||||
|
void ConfigureGPIO( gpio gpio, int parameters );
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef STM32F30X
|
||||||
|
#define GPIOOf(x) ((GPIO_TypeDef *) ((((x)>>4)<=6)?(AHB2PERIPH_BASE+0x400*((x)>>4)):0x60000000) )
|
||||||
|
#elif defined( STM32F40_41xxx )
|
||||||
|
#define GPIOOf(x) ((GPIO_TypeDef *) ((((x)>>4)<=6)?(AHB1PERIPH_BASE+0x400*((x)>>4)):0x60000000) )
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define GPIOPin(x) ((1<<((x)&0x0f)))
|
||||||
|
#define GPIOLatch(x) GPIOOf(x)->ODR
|
||||||
|
|
||||||
|
#ifdef STM32F30X
|
||||||
|
#define GPIOOn(x) GPIOOf(x)->BSRR = (1<<((x)&0x0f));
|
||||||
|
#define GPIOOff(x) GPIOOf(x)->BRR = (1<<((x)&0x0f));
|
||||||
|
#elif defined( STM32F40_41xxx )
|
||||||
|
#define GPIOOn(x) GPIOOf(x)->BSRRH = (1<<((x)&0x0f));
|
||||||
|
#define GPIOOff(x) GPIOOf(x)->BSRRL = (1<<((x)&0x0f));
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef STM32F30X
|
||||||
|
#define LEDPIN 0x18
|
||||||
|
#elif defined( STM32F40_41xxx )
|
||||||
|
#define LEDPIN (16+14)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
void ConfigureUART();
|
||||||
|
|
||||||
|
void ConfigureLED();
|
||||||
|
#define LED_TOGGLE {GPIOOf(LEDPIN)->ODR^=(1<<((LEDPIN)&0x0f));}
|
||||||
|
#define LED_ON GPIOOn(LEDPIN)
|
||||||
|
#define LED_OFF GPIOOff(LEDPIN)
|
||||||
|
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
195
firmware/main.c
Normal file
195
firmware/main.c
Normal file
@ -0,0 +1,195 @@
|
|||||||
|
//ColorChordEmbedded implementation on the STM32F407 for the stm32f4-discovery.
|
||||||
|
//Uses on-board microphone and outputs WS2812 signal for configurable number of LEDs
|
||||||
|
//on PB5 via DMA+SPI
|
||||||
|
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <systems.h>
|
||||||
|
#include <math.h>
|
||||||
|
#include <stm32f4xx_exti.h>
|
||||||
|
#include <DFT32.h>
|
||||||
|
#include <embeddednf.h>
|
||||||
|
#include <embeddedout.h>
|
||||||
|
#include "spi2812.h"
|
||||||
|
#include "adc.h"
|
||||||
|
|
||||||
|
volatile int wasclicked = 0; //Used for if the root change button was clicked.
|
||||||
|
|
||||||
|
RCC_ClocksTypeDef RCC_Clocks;
|
||||||
|
|
||||||
|
|
||||||
|
//Circular buffer for incoming data so we don't spend much time servicing the interrupt and we can handle colorchord in the main thread.
|
||||||
|
#define CIRCBUFSIZE 256
|
||||||
|
volatile int last_samp_pos;
|
||||||
|
int16_t sampbuff[CIRCBUFSIZE];
|
||||||
|
volatile int samples;
|
||||||
|
|
||||||
|
//This gets called by the ADC/Microphone
|
||||||
|
void GotSample( int samp )
|
||||||
|
{
|
||||||
|
//printf("[GOT-SMP] %d\r\n", samp);
|
||||||
|
sampbuff[last_samp_pos] = samp;
|
||||||
|
last_samp_pos = ((last_samp_pos+1)%CIRCBUFSIZE);
|
||||||
|
samples++;
|
||||||
|
}
|
||||||
|
|
||||||
|
//Call this once we've stacked together one full colorchord frame.
|
||||||
|
void NewFrame()
|
||||||
|
{
|
||||||
|
// uint8_t led_outs[NUM_LIN_LEDS*3];
|
||||||
|
int i;
|
||||||
|
HandleFrameInfo();
|
||||||
|
|
||||||
|
// UpdateLinearLEDs();
|
||||||
|
UpdateAllSameLEDs();
|
||||||
|
|
||||||
|
SendSPI2812( ledOut, NUM_LIN_LEDS );
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void Configure_PA0(void) {
|
||||||
|
/* Set variables used */
|
||||||
|
GPIO_InitTypeDef GPIO_InitStruct;
|
||||||
|
EXTI_InitTypeDef EXTI_InitStruct;
|
||||||
|
NVIC_InitTypeDef NVIC_InitStruct;
|
||||||
|
|
||||||
|
/* Enable clock for GPIOD */
|
||||||
|
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
|
||||||
|
/* Enable clock for SYSCFG */
|
||||||
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
|
||||||
|
|
||||||
|
/* Set pin as input */
|
||||||
|
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;
|
||||||
|
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
|
||||||
|
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_0;
|
||||||
|
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_DOWN;
|
||||||
|
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_100MHz;
|
||||||
|
GPIO_Init(GPIOA, &GPIO_InitStruct);
|
||||||
|
|
||||||
|
/* Tell system that you will use PA0 for EXTI_Line0 */
|
||||||
|
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource0);
|
||||||
|
|
||||||
|
/* PA0 is connected to EXTI_Line0 */
|
||||||
|
EXTI_InitStruct.EXTI_Line = EXTI_Line0;
|
||||||
|
/* Enable interrupt */
|
||||||
|
EXTI_InitStruct.EXTI_LineCmd = ENABLE;
|
||||||
|
/* Interrupt mode */
|
||||||
|
EXTI_InitStruct.EXTI_Mode = EXTI_Mode_Interrupt;
|
||||||
|
/* Triggers on rising and falling edge */
|
||||||
|
EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Rising;
|
||||||
|
/* Add to EXTI */
|
||||||
|
EXTI_Init(&EXTI_InitStruct);
|
||||||
|
|
||||||
|
/* Add IRQ vector to NVIC */
|
||||||
|
/* PA0 is connected to EXTI_Line0, which has EXTI0_IRQn vector */
|
||||||
|
NVIC_InitStruct.NVIC_IRQChannel = EXTI0_IRQn;
|
||||||
|
NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0x00; /* Set priority */
|
||||||
|
NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0x00; /* Set sub priority */
|
||||||
|
NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE; /* Enable interrupt */
|
||||||
|
NVIC_Init(&NVIC_InitStruct); /* Add to NVIC */
|
||||||
|
}
|
||||||
|
|
||||||
|
//Handle button press on PA0.
|
||||||
|
void EXTI0_IRQHandler(void)
|
||||||
|
{
|
||||||
|
static int rootoffset;
|
||||||
|
|
||||||
|
if (EXTI_GetITStatus(EXTI_Line0) != RESET)
|
||||||
|
{
|
||||||
|
if( wasclicked == 0 )
|
||||||
|
wasclicked = 10;
|
||||||
|
EXTI_ClearITPendingBit(EXTI_Line0);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(void)
|
||||||
|
{
|
||||||
|
uint32_t i = 0;
|
||||||
|
|
||||||
|
RCC_GetClocksFreq( &RCC_Clocks );
|
||||||
|
|
||||||
|
ConfigureLED();
|
||||||
|
|
||||||
|
LED_OFF;
|
||||||
|
|
||||||
|
// SysTick end of count event each 10ms
|
||||||
|
SysTick_Config( RCC_Clocks.HCLK_Frequency / 100);
|
||||||
|
|
||||||
|
float fv = RCC_Clocks.HCLK_Frequency / 1000000.0f;
|
||||||
|
// We can use printf to print back through the debugging interface, but that's slow and
|
||||||
|
// it also takes up a bunch of space. No printf = no space wasted in printf.
|
||||||
|
// printf( "Operating at %.3fMHz\n", fv );
|
||||||
|
|
||||||
|
ConfigureUART();
|
||||||
|
InitColorChord();
|
||||||
|
Configure_PA0();
|
||||||
|
//InitMP45DT02();
|
||||||
|
InitSPI2812();
|
||||||
|
adc_init();
|
||||||
|
|
||||||
|
printf("Operating at %.3fMHz\r\n", fv );
|
||||||
|
|
||||||
|
int this_samp = 0;
|
||||||
|
int wf = 0;
|
||||||
|
|
||||||
|
|
||||||
|
LED_ON;
|
||||||
|
|
||||||
|
int c = 1;
|
||||||
|
while (1) {
|
||||||
|
for (int a=0; a < NUM_LIN_LEDS; a++) {
|
||||||
|
ledOut[a*3 + 0] = c/2;
|
||||||
|
ledOut[a*3 + 1] = (64-c)/2 % 255;
|
||||||
|
ledOut[a*3 + 2] = a/8 % 256;
|
||||||
|
}
|
||||||
|
|
||||||
|
SendSPI2812(ledOut, NUM_LIN_LEDS);
|
||||||
|
_delay_us(10*1000);
|
||||||
|
c++;
|
||||||
|
if (c==64)
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
SendSPI2812(ledOut, NUM_LIN_LEDS);
|
||||||
|
while(1)
|
||||||
|
{
|
||||||
|
if( this_samp != last_samp_pos )
|
||||||
|
{
|
||||||
|
LED_OFF; //Use led on the board to show us how much CPU we're using. (You can also probe PB15)
|
||||||
|
|
||||||
|
PushSample32( sampbuff[this_samp]/2 ); //Can't put in full volume.
|
||||||
|
|
||||||
|
this_samp = (this_samp+1)%CIRCBUFSIZE;
|
||||||
|
|
||||||
|
wf++;
|
||||||
|
if( wf == 128 )
|
||||||
|
{
|
||||||
|
NewFrame();
|
||||||
|
wf = 0;
|
||||||
|
}
|
||||||
|
LED_ON;
|
||||||
|
}
|
||||||
|
LED_ON; //Take up a little more time to make sure we don't miss this.
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void TimingDelay_Decrement()
|
||||||
|
{
|
||||||
|
static int rootoffset;
|
||||||
|
|
||||||
|
//A way of making sure we debounce the button.
|
||||||
|
if( wasclicked )
|
||||||
|
{
|
||||||
|
if( wasclicked == 10 )
|
||||||
|
{
|
||||||
|
if( rootoffset++ >= 12 ) rootoffset = 0;
|
||||||
|
RootNoteOffset = (rootoffset * NOTERANGE) / 12;
|
||||||
|
}
|
||||||
|
|
||||||
|
wasclicked--;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
334
firmware/spi2812.c
Normal file
334
firmware/spi2812.c
Normal file
@ -0,0 +1,334 @@
|
|||||||
|
//Parts stolen from:
|
||||||
|
// https://javakys.wordpress.com/2014/09/04/how-to-implement-full-duplex-spi-communication-using-spi-dma-mode-on-stm32f2xx-or-stm32f4xx/
|
||||||
|
//Timing from:
|
||||||
|
// https://cpldcpu.wordpress.com/2014/01/14/light_ws2812-library-v2-0-part-i-understanding-the-ws2812/
|
||||||
|
//Also...
|
||||||
|
// https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Discovery/Flat.aspx?RootFolder=https%3a%2f%2fmy.st.com%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fSTM32Discovery%2fSTM32F3%20SPI%20slave%20receive%20with%20DMA&FolderCTID=0x01200200770978C69A1141439FE559EB459D75800084C20D8867EAD444A5987D47BE638E0F¤tviews=1336
|
||||||
|
// For the '407... https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https%3a%2f%2fmy.st.com%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fcortex_mx_stm32%2fSPI1%20in%20DMA2%20on%20STM32F4&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B¤tviews=2447
|
||||||
|
// Also for the '407... http://www.micromouseonline.com/2012/03/11/adding-dma-to-the-spi-driver-with-the-stm32f4/
|
||||||
|
|
||||||
|
|
||||||
|
#include <string.h>
|
||||||
|
#include <stdint.h>
|
||||||
|
|
||||||
|
#include "spi2812.h"
|
||||||
|
|
||||||
|
//Number of 0 segments to transmit ahead of time to reset string.
|
||||||
|
#define ZERO_BUFFER 6
|
||||||
|
|
||||||
|
uint8_t MyBuffer[SPI2812_BUFFSIZE+ZERO_BUFFER];
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef STM32F30X
|
||||||
|
#include <stm32f30x_rcc.h>
|
||||||
|
#include <stm32f30x_gpio.h>
|
||||||
|
#include <stm32f30x_spi.h>
|
||||||
|
#include <stm32f30x_dma.h>
|
||||||
|
#include <stm32f30x_misc.h>
|
||||||
|
|
||||||
|
//Currently, the 30X version does not have configurable ports.
|
||||||
|
|
||||||
|
|
||||||
|
#define SPI_PORT SPI2
|
||||||
|
#define SPI_PORT_CLOCK RCC_APB1Periph_SPI2
|
||||||
|
#define SPI_PORT_CLOCK_INIT RCC_APB1PeriphClockCmd
|
||||||
|
#define SPI_MOSI_PIN GPIO_Pin_15
|
||||||
|
#define SPI_MOSI_GPIO_PORT GPIOB
|
||||||
|
#define SPI_MOSI_GPIO_CLK RCC_AHBPeriph_GPIOB
|
||||||
|
#define SPI_MOSI_SOURCE GPIO_PinSource15
|
||||||
|
#define SPI_MOSI_AF GPIO_AF_5
|
||||||
|
#define SPI_PORT_DR_ADDRESS SPI_PORT->DR
|
||||||
|
#define SPI_PORT_DMA DMA1
|
||||||
|
#define SPI_PORT_DMAx_CLK RCC_AHBPeriph_DMA1
|
||||||
|
#define SPI_PORT_TX_DMA_CHANNEL DMA1_Channel5
|
||||||
|
#define SPI_PORT_DMA_TX_IRQn DMA1_Channel5_IRQn
|
||||||
|
|
||||||
|
#define DMA_HANDLER_IRQFN DMA1_Channel5_IRQHandler
|
||||||
|
#define DMA_FLAG_C DMA1_FLAG_TC5
|
||||||
|
#define DMA_FLAG_E DMA1_FLAG_TE5
|
||||||
|
/*
|
||||||
|
#define SPI_PORT_TX_DMA_STREAM DMA1_Stream4
|
||||||
|
#define SPI_PORT_TX_DMA_FLAG_FEIF DMA_FLAG_FEIF4
|
||||||
|
#define SPI_PORT_TX_DMA_FLAG_DMEIF DMA_FLAG_DMEIF4
|
||||||
|
#define SPI_PORT_TX_DMA_FLAG_TEIF DMA_FLAG_TEIF4
|
||||||
|
#define SPI_PORT_TX_DMA_FLAG_HTIF DMA_FLAG_HTIF4
|
||||||
|
#define SPI_PORT_TX_DMA_FLAG_TCIF DMA_FLAG_TCIF4
|
||||||
|
#define SPI_PORT_DMA_TX_IRQn DMA1_Stream4_IRQn
|
||||||
|
#define SPI_PORT_DMA_TX_IRQHandler DMA1_Stream4_IRQHandler
|
||||||
|
*/
|
||||||
|
|
||||||
|
#elif defined( STM32F40_41xxx )
|
||||||
|
|
||||||
|
#include <stm32f4xx_rcc.h>
|
||||||
|
#include <stm32f4xx_gpio.h>
|
||||||
|
#include <stm32f4xx_spi.h>
|
||||||
|
#include <stm32f4xx_dma.h>
|
||||||
|
#include <misc.h>
|
||||||
|
|
||||||
|
#define SPI_PORT SPI1
|
||||||
|
#define SPI_PORT_CLOCK RCC_APB2Periph_SPI1
|
||||||
|
#define SPI_PORT_CLOCK_INIT RCC_APB2PeriphClockCmd
|
||||||
|
#define SPI_MOSI_PIN GPIO_Pin_7
|
||||||
|
#define SPI_MOSI_GPIO_PORT GPIOA
|
||||||
|
#define SPI_MOSI_GPIO_CLK RCC_AHB1Periph_GPIOA
|
||||||
|
#define SPI_MOSI_SOURCE GPIO_PinSource7
|
||||||
|
#define SPI_MOSI_AF GPIO_AF_SPI1
|
||||||
|
#define SPI_PORT_DR_ADDRESS SPI_PORT->DR
|
||||||
|
#define SPI_PORT_DMA DMA2
|
||||||
|
#define SPI_PORT_DMAx_CLK RCC_AHB1Periph_DMA2
|
||||||
|
#define SPI_PORT_TX_DMA_CHANNEL DMA_Channel_3
|
||||||
|
#define SPI_PORT_TX_DMA_STREAM DMA2_Stream3
|
||||||
|
#define SPI_PORT_TX_DMA_FLAG_FEIF DMA_FLAG_FEIF3
|
||||||
|
#define SPI_PORT_TX_DMA_FLAG_DMEIF DMA_FLAG_DMEIF3
|
||||||
|
#define SPI_PORT_TX_DMA_FLAG_TEIF DMA_FLAG_TEIF3
|
||||||
|
#define SPI_PORT_TX_DMA_FLAG_HTIF DMA_FLAG_HTIF3
|
||||||
|
#define SPI_PORT_TX_DMA_FLAG_TCIF DMA_FLAG_TCIF3
|
||||||
|
#define SPI_PORT_DMA_TX_IRQn DMA2_Stream3_IRQn
|
||||||
|
#define SPI_PORT_DMA_TX_IRQHandler DMA2_Stream3_IRQHandler
|
||||||
|
#define DMA_FLAGE DMA_IT_TCIF3
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef STM32F30X
|
||||||
|
|
||||||
|
void DMA_HANDLER_IRQFN()
|
||||||
|
{
|
||||||
|
if ( DMA_GetFlagStatus(DMA_FLAG_C) == SET )
|
||||||
|
{
|
||||||
|
DMA_ClearITPendingBit(DMA_FLAG_C);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Transfer Error */
|
||||||
|
if(DMA_GetITStatus(DMA_FLAG_E) == SET)
|
||||||
|
{
|
||||||
|
if (DMA_GetFlagStatus(DMA_FLAG_E) != RESET)
|
||||||
|
{
|
||||||
|
DMA_ClearITPendingBit(DMA_FLAG_E);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#elif defined( STM32F40_41xxx )
|
||||||
|
|
||||||
|
void SPI_PORT_DMA_TX_IRQHandler(){
|
||||||
|
|
||||||
|
// Test if DMA Stream Transfer Complete interrupt
|
||||||
|
if (DMA_GetITStatus(SPI_PORT_TX_DMA_STREAM, DMA_FLAGE)) {
|
||||||
|
DMA_ClearITPendingBit(SPI_PORT_TX_DMA_STREAM, DMA_FLAGE);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
void InitSPI2812()
|
||||||
|
{
|
||||||
|
SPI_InitTypeDef SPI_InitStructure;
|
||||||
|
DMA_InitTypeDef dma_init_struct;
|
||||||
|
GPIO_InitTypeDef GPIO_InitStructure;
|
||||||
|
NVIC_InitTypeDef nvic_init_struct;
|
||||||
|
|
||||||
|
printf("Init SPI2812: sizeof(MyBuffer)=%d\r\n", sizeof(MyBuffer));
|
||||||
|
|
||||||
|
#ifdef STM32F30X
|
||||||
|
|
||||||
|
//On SPI2, PORT B.15
|
||||||
|
|
||||||
|
RCC_AHBPeriphClockCmd(SPI_MOSI_GPIO_CLK, ENABLE);
|
||||||
|
RCC_AHBPeriphClockCmd(SPI_PORT_DMAx_CLK, ENABLE);
|
||||||
|
SPI_PORT_CLOCK_INIT(SPI_PORT_CLOCK, ENABLE);
|
||||||
|
SPI_I2S_DeInit(SPI_PORT);
|
||||||
|
|
||||||
|
/* Configure the GPIO_LED pin */
|
||||||
|
GPIO_InitStructure.GPIO_Pin = SPI_MOSI_PIN;
|
||||||
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
|
||||||
|
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
|
||||||
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
|
||||||
|
GPIO_Init(SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
|
||||||
|
|
||||||
|
GPIO_PinAFConfig(SPI_MOSI_GPIO_PORT, SPI_MOSI_SOURCE, SPI_MOSI_AF); //MOSI //GPIO_AF_5??? GPIO_AF_6??? TODO
|
||||||
|
|
||||||
|
/* SPI Config */
|
||||||
|
SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Tx;
|
||||||
|
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
|
||||||
|
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
|
||||||
|
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
|
||||||
|
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
|
||||||
|
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
|
||||||
|
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;
|
||||||
|
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
|
||||||
|
SPI_InitStructure.SPI_CRCPolynomial = 7; //TODO: Remove this???
|
||||||
|
|
||||||
|
SPI_CalculateCRC(SPI_PORT, DISABLE);
|
||||||
|
SPI_Init(SPI_PORT, &SPI_InitStructure);
|
||||||
|
RCC_I2SCLKConfig( RCC_I2S2CLKSource_SYSCLK);
|
||||||
|
SPI_Cmd(SPI_PORT, ENABLE);
|
||||||
|
|
||||||
|
//We're on DMA1, channel 5.
|
||||||
|
|
||||||
|
memset( MyBuffer, 0xAA, 128 );
|
||||||
|
|
||||||
|
DMA_DeInit(SPI_PORT_TX_DMA_CHANNEL);
|
||||||
|
DMA_StructInit(&dma_init_struct);
|
||||||
|
dma_init_struct.DMA_PeripheralBaseAddr = (uint32_t) &SPI_PORT->DR;
|
||||||
|
dma_init_struct.DMA_MemoryBaseAddr = (uint32_t)MyBuffer; //REmove this? somehow?
|
||||||
|
dma_init_struct.DMA_DIR = DMA_DIR_PeripheralDST;
|
||||||
|
dma_init_struct.DMA_BufferSize = 128;
|
||||||
|
dma_init_struct.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
|
||||||
|
dma_init_struct.DMA_MemoryInc = DMA_MemoryInc_Enable;
|
||||||
|
dma_init_struct.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
|
||||||
|
dma_init_struct.DMA_MemoryDataSize = DMA_PeripheralDataSize_Byte;
|
||||||
|
dma_init_struct.DMA_Mode = DMA_Mode_Normal;
|
||||||
|
dma_init_struct.DMA_Priority = DMA_Priority_VeryHigh;
|
||||||
|
dma_init_struct.DMA_M2M = DMA_M2M_Disable;
|
||||||
|
DMA_Init(SPI_PORT_TX_DMA_CHANNEL, &dma_init_struct);
|
||||||
|
|
||||||
|
/* Configure the Priority Group */
|
||||||
|
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
|
||||||
|
|
||||||
|
/* Initialize NVIC Struct for DMA */
|
||||||
|
nvic_init_struct.NVIC_IRQChannel = SPI_PORT_DMA_TX_IRQn;
|
||||||
|
nvic_init_struct.NVIC_IRQChannelPreemptionPriority = 1;
|
||||||
|
nvic_init_struct.NVIC_IRQChannelSubPriority = 0;
|
||||||
|
nvic_init_struct.NVIC_IRQChannelCmd = ENABLE;
|
||||||
|
NVIC_Init(&nvic_init_struct);
|
||||||
|
|
||||||
|
SPI_I2S_DMACmd(SPI_PORT, SPI_I2S_DMAReq_Tx, ENABLE);
|
||||||
|
|
||||||
|
#elif defined( STM32F40_41xxx )
|
||||||
|
|
||||||
|
// enable the SPI peripheral clock
|
||||||
|
SPI_PORT_CLOCK_INIT(SPI_PORT_CLOCK, ENABLE);
|
||||||
|
// enable the peripheral GPIO port clocks
|
||||||
|
RCC_AHB1PeriphClockCmd(SPI_MOSI_GPIO_CLK, ENABLE);
|
||||||
|
// Connect SPI pins to AF5 - see section 3, Table 6 in the device datasheet
|
||||||
|
GPIO_PinAFConfig(SPI_MOSI_GPIO_PORT, SPI_MOSI_SOURCE, SPI_MOSI_AF);
|
||||||
|
// now configure the pins themselves
|
||||||
|
// they are all going to be fast push-pull outputs
|
||||||
|
// but the SPI pins use the alternate function
|
||||||
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
|
||||||
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
||||||
|
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
|
||||||
|
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
|
||||||
|
GPIO_InitStructure.GPIO_Pin = SPI_MOSI_PIN;
|
||||||
|
GPIO_Init(SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
|
||||||
|
// now we can set up the SPI peripheral
|
||||||
|
// Assume the target is write only and we look after the chip select ourselves
|
||||||
|
// SPI clock rate will be system frequency/4/prescaler
|
||||||
|
// so here we will go for 72/4/8 = 2.25MHz
|
||||||
|
SPI_I2S_DeInit(SPI_PORT);
|
||||||
|
SPI_StructInit(&SPI_InitStructure);
|
||||||
|
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
|
||||||
|
SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Tx;
|
||||||
|
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
|
||||||
|
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_16; //On F104, assume 100MHz.
|
||||||
|
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
|
||||||
|
SPI_Init(SPI_PORT, &SPI_InitStructure);
|
||||||
|
// Enable the SPI port
|
||||||
|
SPI_Cmd(SPI_PORT, ENABLE);
|
||||||
|
|
||||||
|
|
||||||
|
// first enable the clock
|
||||||
|
RCC_AHB1PeriphClockCmd(SPI_PORT_DMAx_CLK, ENABLE);
|
||||||
|
// start with a blank DMA configuration just to be sure
|
||||||
|
DMA_DeInit(SPI_PORT_TX_DMA_STREAM);
|
||||||
|
|
||||||
|
while (DMA_GetCmdStatus (SPI_PORT_TX_DMA_STREAM) != DISABLE);
|
||||||
|
|
||||||
|
// Configure DMA controller to manage TX DMA requests
|
||||||
|
// first make sure we are using the default values
|
||||||
|
DMA_StructInit(&dma_init_struct);
|
||||||
|
// these are the only parameters that change from the defaults
|
||||||
|
dma_init_struct.DMA_PeripheralBaseAddr = (uint32_t) & (SPI_PORT->DR);
|
||||||
|
dma_init_struct.DMA_Channel = SPI_PORT_TX_DMA_CHANNEL;
|
||||||
|
dma_init_struct.DMA_DIR = DMA_DIR_MemoryToPeripheral;
|
||||||
|
dma_init_struct.DMA_MemoryInc = DMA_MemoryInc_Enable;
|
||||||
|
/*
|
||||||
|
* It is not possible to call DMA_Init without values for the source
|
||||||
|
* address and non-zero size even though a transfer is not done here.
|
||||||
|
* These are checked only when the assert macro are active though.
|
||||||
|
*/
|
||||||
|
dma_init_struct.DMA_Memory0BaseAddr = (uint32_t)MyBuffer;
|
||||||
|
dma_init_struct.DMA_BufferSize = 1;
|
||||||
|
DMA_Init(SPI_PORT_TX_DMA_STREAM, &dma_init_struct);
|
||||||
|
// Enable the DMA transfer complete interrupt
|
||||||
|
DMA_ITConfig(SPI_PORT_TX_DMA_STREAM, DMA_IT_TC, ENABLE);
|
||||||
|
|
||||||
|
|
||||||
|
DMA_ITConfig (SPI_PORT_TX_DMA_STREAM, DMA_IT_TC, ENABLE);
|
||||||
|
// enable the interrupt in the NVIC
|
||||||
|
nvic_init_struct.NVIC_IRQChannel = SPI_PORT_DMA_TX_IRQn;
|
||||||
|
nvic_init_struct.NVIC_IRQChannelPreemptionPriority = 0;
|
||||||
|
nvic_init_struct.NVIC_IRQChannelSubPriority = 1;
|
||||||
|
nvic_init_struct.NVIC_IRQChannelCmd = ENABLE;
|
||||||
|
NVIC_Init (&nvic_init_struct);
|
||||||
|
// Enable dma tx request.
|
||||||
|
SPI_I2S_DMACmd (SPI_PORT, SPI_I2S_DMAReq_Tx, ENABLE);
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
//These would fire it off...
|
||||||
|
// DMA_Cmd(DMA1_Channel5, ENABLE);
|
||||||
|
// DMA_ITConfig(DMA1_Channel5, DMA_IT_TC, ENABLE);
|
||||||
|
// DMA_ITConfig(DMA1_Channel5, DMA_IT_TE, ENABLE);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
void SendSPI2812( unsigned char * lightarray, int length )
|
||||||
|
{
|
||||||
|
static const uint8_t aoarray[4] = { 0b10001000, 0b10001110, 0b11101000, 0b11101110 };
|
||||||
|
|
||||||
|
int i;
|
||||||
|
if( length > SPI2812_MAX_LEDS ) length = SPI2812_MAX_LEDS;
|
||||||
|
|
||||||
|
MyBuffer[0] = 0;
|
||||||
|
for( i = 0; i < length; i++ )
|
||||||
|
{
|
||||||
|
uint8_t * colorbase = &lightarray[i*3];
|
||||||
|
uint8_t * buffbase = &MyBuffer[i*24/2+ZERO_BUFFER];
|
||||||
|
|
||||||
|
int j;
|
||||||
|
for( j = 0; j < 3; j++ )
|
||||||
|
{
|
||||||
|
uint8_t c = colorbase[j];// (j==0)?1:(j==1)?0:2 ]; //Flip R and G.
|
||||||
|
|
||||||
|
*(buffbase++) = aoarray[(c>>6)&3];
|
||||||
|
*(buffbase++) = aoarray[(c>>4)&3];
|
||||||
|
*(buffbase++) = aoarray[(c>>2)&3];
|
||||||
|
*(buffbase++) = aoarray[(c>>0)&3];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
for( i = 0; i < ZERO_BUFFER; i++ )
|
||||||
|
MyBuffer[i] = 0;
|
||||||
|
|
||||||
|
length *= 24/2;
|
||||||
|
length += ZERO_BUFFER;
|
||||||
|
|
||||||
|
#ifdef STM32F30X
|
||||||
|
|
||||||
|
DMA_Cmd(SPI_PORT_TX_DMA_CHANNEL, DISABLE);
|
||||||
|
SPI_PORT_TX_DMA_CHANNEL->CMAR = (uint32_t) MyBuffer;
|
||||||
|
SPI_PORT_TX_DMA_CHANNEL->CNDTR = (uint16_t) length;
|
||||||
|
DMA_Cmd(SPI_PORT_TX_DMA_CHANNEL, ENABLE);
|
||||||
|
DMA_ITConfig(SPI_PORT_TX_DMA_CHANNEL, DMA_IT_TC, ENABLE);
|
||||||
|
DMA_ITConfig(SPI_PORT_TX_DMA_CHANNEL, DMA_IT_TE, ENABLE);
|
||||||
|
|
||||||
|
#elif defined( STM32F40_41xxx )
|
||||||
|
|
||||||
|
SPI_PORT_TX_DMA_STREAM->NDTR = (uint32_t) length;
|
||||||
|
SPI_PORT_TX_DMA_STREAM->M0AR = (uint32_t) MyBuffer+2;
|
||||||
|
DMA_Cmd (SPI_PORT_TX_DMA_STREAM, ENABLE);
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
15
firmware/spi2812.h
Normal file
15
firmware/spi2812.h
Normal file
@ -0,0 +1,15 @@
|
|||||||
|
#ifndef _SPI_2812_H
|
||||||
|
#define _SPI_2812_H
|
||||||
|
|
||||||
|
#define SPI2812_MAX_LEDS 300
|
||||||
|
|
||||||
|
//24 bits per LED, can fit two bits per byte of output.
|
||||||
|
#define SPI2812_BUFFSIZE (SPI2812_MAX_LEDS*24/2)
|
||||||
|
|
||||||
|
|
||||||
|
void InitSPI2812();
|
||||||
|
void SendSPI2812( unsigned char * lightarray, int leds ); //Need one R, G, B per element.
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
177
firmware/stm32f4xx_it.c
Normal file
177
firmware/stm32f4xx_it.c
Normal file
@ -0,0 +1,177 @@
|
|||||||
|
/**
|
||||||
|
******************************************************************************
|
||||||
|
* @file ADC/ADC_DMA/stm32f4xx_it.c
|
||||||
|
* @author MCD Application Team
|
||||||
|
* @version V1.5.0
|
||||||
|
* @date 06-March-2015
|
||||||
|
* @brief Main Interrupt Service Routines.
|
||||||
|
* This file provides template for all exceptions handler and
|
||||||
|
* peripherals interrupt service routine.
|
||||||
|
******************************************************************************
|
||||||
|
* @attention
|
||||||
|
*
|
||||||
|
* <h2><center>© COPYRIGHT 2015 STMicroelectronics</center></h2>
|
||||||
|
*
|
||||||
|
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
|
||||||
|
* You may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at:
|
||||||
|
*
|
||||||
|
* http://www.st.com/software_license_agreement_liberty_v2
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
*
|
||||||
|
******************************************************************************
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Includes ------------------------------------------------------------------*/
|
||||||
|
#include "stm32f4xx_it.h"
|
||||||
|
|
||||||
|
/** @addtogroup STM32F4xx_StdPeriph_Examples
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** @addtogroup ADC_DMA
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Private typedef -----------------------------------------------------------*/
|
||||||
|
/* Private define ------------------------------------------------------------*/
|
||||||
|
/* Private macro -------------------------------------------------------------*/
|
||||||
|
/* Private variables ---------------------------------------------------------*/
|
||||||
|
/* Private function prototypes -----------------------------------------------*/
|
||||||
|
/* Private functions ---------------------------------------------------------*/
|
||||||
|
|
||||||
|
/******************************************************************************/
|
||||||
|
/* Cortex-M4 Processor Exceptions Handlers */
|
||||||
|
/******************************************************************************/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief This function handles NMI exception.
|
||||||
|
* @param None
|
||||||
|
* @retval None
|
||||||
|
*/
|
||||||
|
void NMI_Handler(void)
|
||||||
|
{
|
||||||
|
send_text( "NMI Fault.\n" );
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief This function handles Hard Fault exception.
|
||||||
|
* @param None
|
||||||
|
* @retval None
|
||||||
|
*/
|
||||||
|
void HardFault_Handler(void)
|
||||||
|
{
|
||||||
|
send_text( "Hard Fault.\n" );
|
||||||
|
/* Go to infinite loop when Hard Fault exception occurs */
|
||||||
|
while (1)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief This function handles Memory Manage exception.
|
||||||
|
* @param None
|
||||||
|
* @retval None
|
||||||
|
*/
|
||||||
|
void MemManage_Handler(void)
|
||||||
|
{
|
||||||
|
send_text( "MemRange Fault.\n" );
|
||||||
|
|
||||||
|
/* Go to infinite loop when Memory Manage exception occurs */
|
||||||
|
while (1)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief This function handles Bus Fault exception.
|
||||||
|
* @param None
|
||||||
|
* @retval None
|
||||||
|
*/
|
||||||
|
void BusFault_Handler(void)
|
||||||
|
{
|
||||||
|
send_text( "Bus Fault.\n" );
|
||||||
|
|
||||||
|
/* Go to infinite loop when Bus Fault exception occurs */
|
||||||
|
while (1)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief This function handles Usage Fault exception.
|
||||||
|
* @param None
|
||||||
|
* @retval None
|
||||||
|
*/
|
||||||
|
void UsageFault_Handler(void)
|
||||||
|
{
|
||||||
|
send_text( "Usage Fault.\n" );
|
||||||
|
|
||||||
|
/* Go to infinite loop when Usage Fault exception occurs */
|
||||||
|
while (1)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief This function handles SVCall exception.
|
||||||
|
* @param None
|
||||||
|
* @retval None
|
||||||
|
*/
|
||||||
|
void SVC_Handler(void)
|
||||||
|
{
|
||||||
|
send_text( "SVC Fault.\n" );
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief This function handles Debug Monitor exception.
|
||||||
|
* @param None
|
||||||
|
* @retval None
|
||||||
|
*/
|
||||||
|
void DebugMon_Handler(void)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief This function handles PendSVC exception.
|
||||||
|
* @param None
|
||||||
|
* @retval None
|
||||||
|
*/
|
||||||
|
void PendSV_Handler(void)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief This function handles SysTick Handler.
|
||||||
|
* @param None
|
||||||
|
* @retval None
|
||||||
|
*/
|
||||||
|
void SysTick_Handler(void)
|
||||||
|
{
|
||||||
|
TimingDelay_Decrement();
|
||||||
|
}
|
||||||
|
|
||||||
|
/******************************************************************************/
|
||||||
|
/* STM32F4xx Peripherals Interrupt Handlers */
|
||||||
|
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
|
||||||
|
/* available peripheral interrupt handler's name please refer to the startup */
|
||||||
|
/* file (startup_stm32f40xx.s/startup_stm32f427x.s/startup_stm32f429x.s). */
|
||||||
|
/******************************************************************************/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||||
58
firmware/stm32f4xx_it.h
Normal file
58
firmware/stm32f4xx_it.h
Normal file
@ -0,0 +1,58 @@
|
|||||||
|
/**
|
||||||
|
******************************************************************************
|
||||||
|
* @file ADC/ADC_DMA/stm32f4xx_it.h
|
||||||
|
* @author MCD Application Team
|
||||||
|
* @version V1.5.0
|
||||||
|
* @date 06-March-2015
|
||||||
|
* @brief This file contains the headers of the interrupt handlers.
|
||||||
|
******************************************************************************
|
||||||
|
* @attention
|
||||||
|
*
|
||||||
|
* <h2><center>© COPYRIGHT 2015 STMicroelectronics</center></h2>
|
||||||
|
*
|
||||||
|
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
|
||||||
|
* You may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at:
|
||||||
|
*
|
||||||
|
* http://www.st.com/software_license_agreement_liberty_v2
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
*
|
||||||
|
******************************************************************************
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Define to prevent recursive inclusion -------------------------------------*/
|
||||||
|
#ifndef __STM32F4xx_IT_H
|
||||||
|
#define __STM32F4xx_IT_H
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* Includes ------------------------------------------------------------------*/
|
||||||
|
/* Exported types ------------------------------------------------------------*/
|
||||||
|
/* Exported constants --------------------------------------------------------*/
|
||||||
|
/* Exported macro ------------------------------------------------------------*/
|
||||||
|
/* Exported functions ------------------------------------------------------- */
|
||||||
|
|
||||||
|
void NMI_Handler(void);
|
||||||
|
void HardFault_Handler(void);
|
||||||
|
void MemManage_Handler(void);
|
||||||
|
void BusFault_Handler(void);
|
||||||
|
void UsageFault_Handler(void);
|
||||||
|
void SVC_Handler(void);
|
||||||
|
void DebugMon_Handler(void);
|
||||||
|
void PendSV_Handler(void);
|
||||||
|
void SysTick_Handler(void);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /* __STM32F4xx_IT_H */
|
||||||
|
|
||||||
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||||
Loading…
Reference in New Issue
Block a user