wip

firmware/adc.c

@@ -30,7 +30,7 @@ void adc_init()
 	// Set up timer
 	TIM_TimeBaseInitTypeDef Timer_InitStruct;
 	TIM_TimeBaseStructInit(&Timer_InitStruct);
-	Timer_InitStruct.TIM_Prescaler = 0;
+	Timer_InitStruct.TIM_Prescaler = 0x0;
 	Timer_InitStruct.TIM_CounterMode = TIM_CounterMode_Up;
 	Timer_InitStruct.TIM_Period = (ADC_F_TIM / ADC_SAMPLE_RATE);
 	Timer_InitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
@@ -136,11 +136,15 @@ void adc_init()
 }
 
 void DMA2_Stream0_IRQHandler()
-{
+{	
 	int sample;
 	DMA_ClearFlag(ADC_RX_DMA_STREAM, DMA_FLAG_TCIF0);
 	//printf("[DMA-IRQ] %d, %d\r\n", adc_buffer[0], adc_buffer[1]);
-	sample = 2048 - ((adc_buffer[0] + adc_buffer[1]) / 2);
+	//sample = 2048 - ((adc_buffer[0] + adc_buffer[1]) / 2);
+	sample = 2048 - adc_buffer[0];
+	//printf("ADC0: %4d, ADC1: %4d, SMP: %4d\r\n",
+	//	adc_buffer[0], adc_buffer[1], sample);
+	
 	GotSample(sample);
 }
 
@@ -155,5 +159,12 @@ void TIM5_IRQHandler()
 {
 	TIM_ClearFlag(TIM5, TIM_FLAG_CC1);
 	// I would really like to this in HW via events, but somehow it's broken...
+		/*static int s=0;
+	s=!s;
+	if (s) {
+		LED_ON2;
+	} else {
+		LED_OFF2;
+	}*/
 	ADC_SoftwareStartConv(ADC1);
 }

firmware/adc.h

@@ -2,7 +2,7 @@
 #define _ADC_H
 
 #define ADC_F_TIM 50000000
-#define ADC_SAMPLE_RATE 44130
+#define ADC_SAMPLE_RATE (40000)
 
 
 #define ADC_RX_DMA_CHANNEL DMA_Channel_0

firmware/ccconfig.h

@@ -4,7 +4,7 @@
 #define CCEMBEDDED
 #define NUM_LIN_LEDS 60
 #define USE_NUM_LIN_LEDS 60
-#define DFREQ 44130
+#define DFREQ (40000)
 
 #endif
 

firmware/lib/systems.c

@@ -168,7 +168,8 @@ void ConfigureUART()
 
 void ConfigureLED()
 {
-	ConfigureGPIO( LEDPIN, INOUT_OUT );
+	ConfigureGPIO(LEDPIN, INOUT_OUT);
+	ConfigureGPIO(LEDPIN2, INOUT_OUT);
 }
 
 uint8_t GetGPIOFromString( const char * str )

firmware/lib/systems.h

@@ -51,6 +51,7 @@ void ConfigureGPIO( gpio gpio, int parameters );
 #define LEDPIN 0x18
 #elif defined( STM32F40_41xxx )
 #define LEDPIN (16+14)
+#define LEDPIN2 (16+13)
 #endif
 
 void ConfigureUART();
@@ -60,6 +61,9 @@ void ConfigureLED();
 #define LED_ON     GPIOOn(LEDPIN)
 #define LED_OFF    GPIOOff(LEDPIN)
 
+#define LED_ON2     GPIOOn(LEDPIN2)
+#define LED_OFF2    GPIOOff(LEDPIN2)
+
 
 #endif
 

firmware/main.c

@@ -31,6 +31,12 @@ void GotSample( int samp )
 	sampbuff[last_samp_pos] = samp;
 	last_samp_pos = ((last_samp_pos+1)%CIRCBUFSIZE);
 	samples++;
+	
+	if (samp > 128) {
+		LED_ON2;
+	} else {
+		LED_OFF2;
+	}
 }
 
 //Call this once we've stacked together one full colorchord frame.
@@ -40,8 +46,8 @@ void NewFrame()
 	int i;
 	HandleFrameInfo();
 
-//	UpdateLinearLEDs();
+	UpdateLinearLEDs();
-	UpdateAllSameLEDs();
+	//UpdateAllSameLEDs();
 
 	SendSPI2812( ledOut, NUM_LIN_LEDS );
 }
@@ -116,14 +122,10 @@ int main(void)
 	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();
 
@@ -132,8 +134,8 @@ int main(void)
 	int this_samp = 0;
 	int wf = 0;
 	
-	
 	LED_ON;
+	LED_ON2;
 	
 	int c = 1;
 	while (1) {
@@ -150,7 +152,7 @@ int main(void)
 			break;
 	}
 	
-
+	LED_OFF2;
 	SendSPI2812(ledOut, NUM_LIN_LEDS);
 	while(1)
 	{
@@ -158,7 +160,7 @@ int main(void)
 		{
 			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.
+			PushSample32( sampbuff[this_samp] ); //Can't put in full volume. (here was /2)
 
 			this_samp = (this_samp+1)%CIRCBUFSIZE;