Compare commits
3 Commits
4f8931f193
...
df2ec0cb17
| Author | SHA1 | Date | |
|---|---|---|---|
| df2ec0cb17 | |||
| 00792df17b | |||
| 9e41c88c5b |
27
.gitignore
vendored
27
.gitignore
vendored
@ -1 +1,28 @@
|
|||||||
|
# Directories
|
||||||
doc
|
doc
|
||||||
|
|
||||||
|
# AVR temp files
|
||||||
|
*.srec
|
||||||
|
*.s
|
||||||
|
*.o
|
||||||
|
*.map
|
||||||
|
*.lst
|
||||||
|
*.hex
|
||||||
|
*.elf
|
||||||
|
*.bin
|
||||||
|
*.obj
|
||||||
|
|
||||||
|
# Linux kernel driver temp files
|
||||||
|
.cache.mk
|
||||||
|
*.cmd
|
||||||
|
.tmp_versions/*
|
||||||
|
*.a
|
||||||
|
*.mod
|
||||||
|
|
||||||
|
# Qt files
|
||||||
|
build-*
|
||||||
|
|
||||||
|
# CMake
|
||||||
|
**/CMakeFiles/**
|
||||||
|
CMakeCache.txt
|
||||||
|
cmake_install.cmake
|
||||||
|
|||||||
8
ioc/avr-bootloader/.gitignore
vendored
Normal file
8
ioc/avr-bootloader/.gitignore
vendored
Normal file
@ -0,0 +1,8 @@
|
|||||||
|
*.srec
|
||||||
|
*.s
|
||||||
|
*.o
|
||||||
|
*.map
|
||||||
|
*.lst
|
||||||
|
*.hex
|
||||||
|
*.elf
|
||||||
|
*.bin
|
||||||
507
ioc/avr-bootloader/main.c
Normal file
507
ioc/avr-bootloader/main.c
Normal file
@ -0,0 +1,507 @@
|
|||||||
|
/**********************************************************/
|
||||||
|
/* Serial Bootloader for Atmel mega8 AVR Controller */
|
||||||
|
/* */
|
||||||
|
/* ATmegaBOOT.c */
|
||||||
|
/* */
|
||||||
|
/* Copyright (c) 2003, Jason P. Kyle */
|
||||||
|
/* */
|
||||||
|
/* Hacked by DojoCorp - ZGZ - MMX - IVR */
|
||||||
|
/* Hacked by David A. Mellis */
|
||||||
|
/* */
|
||||||
|
/* This program is free software; you can redistribute it */
|
||||||
|
/* and/or modify it under the terms of the GNU General */
|
||||||
|
/* Public License as published by the Free Software */
|
||||||
|
/* Foundation; either version 2 of the License, or */
|
||||||
|
/* (at your option) any later version. */
|
||||||
|
/* */
|
||||||
|
/* This program is distributed in the hope that it will */
|
||||||
|
/* be useful, but WITHOUT ANY WARRANTY; without even the */
|
||||||
|
/* implied warranty of MERCHANTABILITY or FITNESS FOR A */
|
||||||
|
/* PARTICULAR PURPOSE. See the GNU General Public */
|
||||||
|
/* License for more details. */
|
||||||
|
/* */
|
||||||
|
/* You should have received a copy of the GNU General */
|
||||||
|
/* Public License along with this program; if not, write */
|
||||||
|
/* to the Free Software Foundation, Inc., */
|
||||||
|
/* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
||||||
|
/* */
|
||||||
|
/* Licence can be viewed at */
|
||||||
|
/* http://www.fsf.org/licenses/gpl.txt */
|
||||||
|
/* */
|
||||||
|
/* Target = Atmel AVR m8 */
|
||||||
|
/**********************************************************/
|
||||||
|
|
||||||
|
#include <inttypes.h>
|
||||||
|
#include <avr/io.h>
|
||||||
|
#include <avr/pgmspace.h>
|
||||||
|
#include <avr/eeprom.h>
|
||||||
|
#include <avr/interrupt.h>
|
||||||
|
#include <util/delay.h>
|
||||||
|
|
||||||
|
//#define F_CPU 16000000
|
||||||
|
|
||||||
|
/* We, Malmoitians, like slow interaction
|
||||||
|
* therefore the slow baud rate ;-)
|
||||||
|
*/
|
||||||
|
//#define BAUD_RATE 9600
|
||||||
|
|
||||||
|
/* 6.000.000 is more or less 8 seconds at the
|
||||||
|
* speed configured here
|
||||||
|
*/
|
||||||
|
//#define MAX_TIME_COUNT 6000000
|
||||||
|
#define MAX_TIME_COUNT (F_CPU>>1)
|
||||||
|
///#define MAX_TIME_COUNT_MORATORY 1600000
|
||||||
|
|
||||||
|
/* SW_MAJOR and MINOR needs to be updated from time to time to avoid warning message from AVR Studio */
|
||||||
|
#define HW_VER 0x02
|
||||||
|
#define SW_MAJOR 0x01
|
||||||
|
#define SW_MINOR 0x12
|
||||||
|
|
||||||
|
// AVR-GCC compiler compatibility
|
||||||
|
// avr-gcc compiler v3.1.x and older doesn't support outb() and inb()
|
||||||
|
// if necessary, convert outb and inb to outp and inp
|
||||||
|
#ifndef outb
|
||||||
|
#define outb(sfr,val) (_SFR_BYTE(sfr) = (val))
|
||||||
|
#endif
|
||||||
|
#ifndef inb
|
||||||
|
#define inb(sfr) _SFR_BYTE(sfr)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* defines for future compatibility */
|
||||||
|
#ifndef cbi
|
||||||
|
#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
|
||||||
|
#endif
|
||||||
|
#ifndef sbi
|
||||||
|
#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* Adjust to suit whatever pin your hardware uses to enter the bootloader */
|
||||||
|
#define eeprom_rb(addr) eeprom_read_byte ((uint8_t *)(addr))
|
||||||
|
#define eeprom_rw(addr) eeprom_read_word ((uint16_t *)(addr))
|
||||||
|
#define eeprom_wb(addr, val) eeprom_write_byte ((uint8_t *)(addr), (uint8_t)(val))
|
||||||
|
|
||||||
|
/* Onboard LED is connected to pin PB5 */
|
||||||
|
#define LED_DDR DDRB
|
||||||
|
#define LED_PORT PORTB
|
||||||
|
#define LED_PIN PINB
|
||||||
|
#define LED PINB5
|
||||||
|
|
||||||
|
|
||||||
|
#define SIG1 0x1E // Yep, Atmel is the only manufacturer of AVR micros. Single source :(
|
||||||
|
#define SIG2 0x93
|
||||||
|
#define SIG3 0x07
|
||||||
|
#define PAGE_SIZE 0x20U //32 words
|
||||||
|
|
||||||
|
|
||||||
|
void putch(char);
|
||||||
|
char getch(void);
|
||||||
|
void getNch(uint8_t);
|
||||||
|
void byte_response(uint8_t);
|
||||||
|
void nothing_response(void);
|
||||||
|
|
||||||
|
union address_union {
|
||||||
|
uint16_t word;
|
||||||
|
uint8_t byte[2];
|
||||||
|
} address;
|
||||||
|
|
||||||
|
union length_union {
|
||||||
|
uint16_t word;
|
||||||
|
uint8_t byte[2];
|
||||||
|
} length;
|
||||||
|
|
||||||
|
struct flags_struct {
|
||||||
|
unsigned eeprom : 1;
|
||||||
|
unsigned rampz : 1;
|
||||||
|
} flags;
|
||||||
|
|
||||||
|
uint8_t buff[256];
|
||||||
|
//uint8_t address_high;
|
||||||
|
|
||||||
|
uint8_t pagesz=0x80;
|
||||||
|
|
||||||
|
uint8_t i;
|
||||||
|
//uint8_t bootuart0=0,bootuart1=0;
|
||||||
|
|
||||||
|
|
||||||
|
void (*app_start)(void) = 0x0000;
|
||||||
|
|
||||||
|
int main(void)
|
||||||
|
{
|
||||||
|
uint8_t ch,ch2;
|
||||||
|
uint16_t w;
|
||||||
|
|
||||||
|
//cbi(BL_DDR,BL);
|
||||||
|
//sbi(BL_PORT,BL);
|
||||||
|
|
||||||
|
asm volatile("nop\n\t");
|
||||||
|
|
||||||
|
/* check if flash is programmed already, if not start bootloader anyway */
|
||||||
|
//if(pgm_read_byte_near(0x0000) != 0xFF) {
|
||||||
|
|
||||||
|
/* check if bootloader pin is set low */
|
||||||
|
//if(bit_is_set(BL_PIN,BL)) app_start();
|
||||||
|
//}
|
||||||
|
|
||||||
|
/* initialize UART(s) depending on CPU defined */
|
||||||
|
/* m8 */
|
||||||
|
UBRRH = (((F_CPU/BAUD_RATE)/16)-1)>>8; // set baud rate
|
||||||
|
UBRRL = (((F_CPU/BAUD_RATE)/16)-1);
|
||||||
|
UCSRB = (1<<RXEN)|(1<<TXEN); // enable Rx & Tx
|
||||||
|
UCSRC = (1<<URSEL)|(1<<UCSZ1)|(1<<UCSZ0); // config USART; 8N1
|
||||||
|
|
||||||
|
//UBRRL = (uint8_t)(F_CPU/(BAUD_RATE*16L)-1);
|
||||||
|
//UBRRH = (F_CPU/(BAUD_RATE*16L)-1) >> 8;
|
||||||
|
//UCSRA = 0x00;
|
||||||
|
//UCSRC = 0x86;
|
||||||
|
//UCSRB = _BV(TXEN)|_BV(RXEN);
|
||||||
|
|
||||||
|
|
||||||
|
/* this was giving uisp problems, so I removed it; without it, the boot
|
||||||
|
works on with uisp and avrdude on the mac (at least). */
|
||||||
|
//putch('\0');
|
||||||
|
|
||||||
|
//uint32_t l;
|
||||||
|
//uint32_t time_count;
|
||||||
|
//time_count=0;
|
||||||
|
|
||||||
|
/* set LED pin as output */
|
||||||
|
sbi(LED_DDR,LED);
|
||||||
|
for (i = 0; i < 16; i++) {
|
||||||
|
outb(LED_PORT, inb(LED_PORT) ^ _BV(LED));
|
||||||
|
_delay_loop_2(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
//for (l=0; l<40000000; l++)
|
||||||
|
//outb(LED_PORT, inb(LED_PORT) ^= _BV(LED));
|
||||||
|
|
||||||
|
/* flash onboard LED three times to signal entering of bootloader */
|
||||||
|
//for(i=0; i<3; ++i) {
|
||||||
|
//for(l=0; l<40000000; ++l);
|
||||||
|
//sbi(LED_PORT,LED);
|
||||||
|
//for(l=0; l<40000000; ++l);
|
||||||
|
//cbi(LED_PORT,LED);
|
||||||
|
//}
|
||||||
|
|
||||||
|
/* see comment at previous call to putch() */
|
||||||
|
//putch('\0'); // this line is needed for the synchronization of the programmer
|
||||||
|
|
||||||
|
/* forever */
|
||||||
|
for (;;) {
|
||||||
|
//if((inb(UCSRA) & _BV(RXC))){
|
||||||
|
/* get character from UART */
|
||||||
|
ch = getch();
|
||||||
|
|
||||||
|
/* A bunch of if...else if... gives smaller code than switch...case ! */
|
||||||
|
|
||||||
|
/* Hello is anyone home ? */
|
||||||
|
if(ch=='0') {
|
||||||
|
nothing_response();
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Request programmer ID */
|
||||||
|
/* Not using PROGMEM string due to boot block in m128 being beyond 64kB boundry */
|
||||||
|
/* Would need to selectively manipulate RAMPZ, and it's only 9 characters anyway so who cares. */
|
||||||
|
else if(ch=='1') {
|
||||||
|
if (getch() == ' ') {
|
||||||
|
putch(0x14);
|
||||||
|
putch('A');
|
||||||
|
putch('V');
|
||||||
|
putch('R');
|
||||||
|
putch(' ');
|
||||||
|
putch('I');
|
||||||
|
putch('S');
|
||||||
|
putch('P');
|
||||||
|
putch(0x10);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* AVR ISP/STK500 board commands DON'T CARE so default nothing_response */
|
||||||
|
else if(ch=='@') {
|
||||||
|
ch2 = getch();
|
||||||
|
if (ch2>0x85) getch();
|
||||||
|
nothing_response();
|
||||||
|
}
|
||||||
|
|
||||||
|
/* AVR ISP/STK500 board requests */
|
||||||
|
else if(ch=='A') {
|
||||||
|
ch2 = getch();
|
||||||
|
if(ch2==0x80) byte_response(HW_VER); // Hardware version
|
||||||
|
else if(ch2==0x81) byte_response(SW_MAJOR); // Software major version
|
||||||
|
else if(ch2==0x82) byte_response(SW_MINOR); // Software minor version
|
||||||
|
//else if(ch2==0x98) byte_response(0x03); // Unknown but seems to be required by avr studio 3.56
|
||||||
|
else byte_response(0x00); // Covers various unnecessary responses we don't care about
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Device Parameters DON'T CARE, DEVICE IS FIXED */
|
||||||
|
else if(ch=='B') {
|
||||||
|
getNch(20);
|
||||||
|
nothing_response();
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Parallel programming stuff DON'T CARE */
|
||||||
|
else if(ch=='E') {
|
||||||
|
getNch(5);
|
||||||
|
nothing_response();
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Enter programming mode */
|
||||||
|
else if(ch=='P') {
|
||||||
|
nothing_response();
|
||||||
|
// FIXME: modified only here by DojoCorp, Mumbai, India, 20050626
|
||||||
|
//time_count=0; // exted the delay once entered prog.mode
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Leave programming mode */
|
||||||
|
else if(ch=='Q') {
|
||||||
|
nothing_response();
|
||||||
|
//time_count=MAX_TIME_COUNT_MORATORY; // once the programming is done,
|
||||||
|
// we should start the application
|
||||||
|
// but uisp has problems with this,
|
||||||
|
// therefore we just change the times
|
||||||
|
// and give the programmer 1 sec to react
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Erase device, don't care as we will erase one page at a time anyway. */
|
||||||
|
else if(ch=='R') {
|
||||||
|
nothing_response();
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Set address, little endian. EEPROM in bytes, FLASH in words */
|
||||||
|
/* Perhaps extra address bytes may be added in future to support > 128kB FLASH. */
|
||||||
|
/* This might explain why little endian was used here, big endian used everywhere else. */
|
||||||
|
else if(ch=='U') {
|
||||||
|
address.byte[0] = getch();
|
||||||
|
address.byte[1] = getch();
|
||||||
|
nothing_response();
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Universal SPI programming command, disabled. Would be used for fuses and lock bits. */
|
||||||
|
else if(ch=='V') {
|
||||||
|
getNch(4);
|
||||||
|
byte_response(0x00);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Write memory, length is big endian and is in bytes */
|
||||||
|
else if(ch=='d') {
|
||||||
|
length.byte[1] = getch();
|
||||||
|
length.byte[0] = getch();
|
||||||
|
flags.eeprom = 0;
|
||||||
|
if (getch() == 'E') flags.eeprom = 1;
|
||||||
|
for (w=0;w<length.word;w++) {
|
||||||
|
buff[w] = getch(); // Store data in buffer, can't keep up with serial data stream whilst programming pages
|
||||||
|
}
|
||||||
|
if (getch() == ' ') {
|
||||||
|
if (flags.eeprom) { //Write to EEPROM one byte at a time
|
||||||
|
for(w=0;w<length.word;w++) {
|
||||||
|
eeprom_wb(address.word,buff[w]);
|
||||||
|
address.word++;
|
||||||
|
}
|
||||||
|
} else { //Write to FLASH one page at a time
|
||||||
|
//if (address.byte[1]>127) address_high = 0x01; //Only possible with m128, m256 will need 3rd address byte. FIXME
|
||||||
|
//else address_high = 0x00;
|
||||||
|
|
||||||
|
//address.word = address.word << 1; //address * 2 -> byte location
|
||||||
|
//if ((length.byte[0] & 0x01)) length.word++; //Even up an odd number of bytes
|
||||||
|
cli(); //Disable interrupts, just to be sure
|
||||||
|
while(bit_is_set(EECR,EEWE)); //Wait for previous EEPROM writes to complete
|
||||||
|
asm volatile(
|
||||||
|
"clr r17 \n\t" //page_word_count
|
||||||
|
"lds r30,address \n\t" //Address of FLASH location (in words)
|
||||||
|
"lds r31,address+1 \n\t"
|
||||||
|
"lsl r30 \n\t" //address * 2 -> byte location
|
||||||
|
"rol r31 \n\t"
|
||||||
|
"ldi r28,lo8(buff) \n\t" //Start of buffer array in RAM
|
||||||
|
"ldi r29,hi8(buff) \n\t"
|
||||||
|
"lds r24,length \n\t" //Length of data to be written (in bytes)
|
||||||
|
"lds r25,length+1 \n\t"
|
||||||
|
"sbrs r24,0 \n\t" //Even up an odd number of bytes
|
||||||
|
"rjmp length_loop \n\t"
|
||||||
|
"adiw r24,1 \n\t"
|
||||||
|
"length_loop: \n\t" //Main loop, repeat for number of words in block
|
||||||
|
"cpi r17,0x00 \n\t" //If page_word_count=0 then erase page
|
||||||
|
"brne no_page_erase \n\t"
|
||||||
|
"rcall wait_spm \n\t"
|
||||||
|
// "wait_spm1: \n\t"
|
||||||
|
// "lds r16,%0 \n\t" //Wait for previous spm to complete
|
||||||
|
// "andi r16,1 \n\t"
|
||||||
|
// "cpi r16,1 \n\t"
|
||||||
|
// "breq wait_spm1 \n\t"
|
||||||
|
"ldi r16,0x03 \n\t" //Erase page pointed to by Z
|
||||||
|
"sts %0,r16 \n\t"
|
||||||
|
"spm \n\t"
|
||||||
|
"rcall wait_spm \n\t"
|
||||||
|
// "wait_spm2: \n\t"
|
||||||
|
// "lds r16,%0 \n\t" //Wait for previous spm to complete
|
||||||
|
// "andi r16,1 \n\t"
|
||||||
|
// "cpi r16,1 \n\t"
|
||||||
|
// "breq wait_spm2 \n\t"
|
||||||
|
"ldi r16,0x11 \n\t" //Re-enable RWW section
|
||||||
|
"sts %0,r16 \n\t"
|
||||||
|
"spm \n\t"
|
||||||
|
"no_page_erase: \n\t"
|
||||||
|
"ld r0,Y+ \n\t" //Write 2 bytes into page buffer
|
||||||
|
"ld r1,Y+ \n\t"
|
||||||
|
|
||||||
|
"rcall wait_spm \n\t"
|
||||||
|
// "wait_spm3: \n\t"
|
||||||
|
// "lds r16,%0 \n\t" //Wait for previous spm to complete
|
||||||
|
// "andi r16,1 \n\t"
|
||||||
|
// "cpi r16,1 \n\t"
|
||||||
|
// "breq wait_spm3 \n\t"
|
||||||
|
"ldi r16,0x01 \n\t" //Load r0,r1 into FLASH page buffer
|
||||||
|
"sts %0,r16 \n\t"
|
||||||
|
"spm \n\t"
|
||||||
|
|
||||||
|
"inc r17 \n\t" //page_word_count++
|
||||||
|
"cpi r17,%1 \n\t"
|
||||||
|
"brlo same_page \n\t" //Still same page in FLASH
|
||||||
|
"write_page: \n\t"
|
||||||
|
"clr r17 \n\t" //New page, write current one first
|
||||||
|
"rcall wait_spm \n\t"
|
||||||
|
// "wait_spm4: \n\t"
|
||||||
|
// "lds r16,%0 \n\t" //Wait for previous spm to complete
|
||||||
|
// "andi r16,1 \n\t"
|
||||||
|
// "cpi r16,1 \n\t"
|
||||||
|
// "breq wait_spm4 \n\t"
|
||||||
|
"ldi r16,0x05 \n\t" //Write page pointed to by Z
|
||||||
|
"sts %0,r16 \n\t"
|
||||||
|
"spm \n\t"
|
||||||
|
"rcall wait_spm \n\t"
|
||||||
|
// "wait_spm5: \n\t"
|
||||||
|
// "lds r16,%0 \n\t" //Wait for previous spm to complete
|
||||||
|
// "andi r16,1 \n\t"
|
||||||
|
// "cpi r16,1 \n\t"
|
||||||
|
// "breq wait_spm5 \n\t"
|
||||||
|
"ldi r16,0x11 \n\t" //Re-enable RWW section
|
||||||
|
"sts %0,r16 \n\t"
|
||||||
|
"spm \n\t"
|
||||||
|
"same_page: \n\t"
|
||||||
|
"adiw r30,2 \n\t" //Next word in FLASH
|
||||||
|
"sbiw r24,2 \n\t" //length-2
|
||||||
|
"breq final_write \n\t" //Finished
|
||||||
|
"rjmp length_loop \n\t"
|
||||||
|
|
||||||
|
"wait_spm: \n\t"
|
||||||
|
"lds r16,%0 \n\t" //Wait for previous spm to complete
|
||||||
|
"andi r16,1 \n\t"
|
||||||
|
"cpi r16,1 \n\t"
|
||||||
|
"breq wait_spm \n\t"
|
||||||
|
"ret \n\t"
|
||||||
|
|
||||||
|
"final_write: \n\t"
|
||||||
|
"cpi r17,0 \n\t"
|
||||||
|
"breq block_done \n\t"
|
||||||
|
"adiw r24,2 \n\t" //length+2, fool above check on length after short page write
|
||||||
|
"rjmp write_page \n\t"
|
||||||
|
"block_done: \n\t"
|
||||||
|
"clr __zero_reg__ \n\t" //restore zero register
|
||||||
|
: "=m" (SPMCR) : "M" (PAGE_SIZE) : "r0","r16","r17","r24","r25","r28","r29","r30","r31");
|
||||||
|
|
||||||
|
/* Should really add a wait for RWW section to be enabled, don't actually need it since we never */
|
||||||
|
/* exit the bootloader without a power cycle anyhow */
|
||||||
|
}
|
||||||
|
putch(0x14);
|
||||||
|
putch(0x10);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Read memory block mode, length is big endian. */
|
||||||
|
else if(ch=='t') {
|
||||||
|
length.byte[1] = getch();
|
||||||
|
length.byte[0] = getch();
|
||||||
|
if (getch() == 'E') flags.eeprom = 1;
|
||||||
|
else {
|
||||||
|
flags.eeprom = 0;
|
||||||
|
address.word = address.word << 1; // address * 2 -> byte location
|
||||||
|
}
|
||||||
|
if (getch() == ' ') { // Command terminator
|
||||||
|
putch(0x14);
|
||||||
|
for (w=0;w < length.word;w++) { // Can handle odd and even lengths okay
|
||||||
|
if (flags.eeprom) { // Byte access EEPROM read
|
||||||
|
putch(eeprom_rb(address.word));
|
||||||
|
address.word++;
|
||||||
|
} else {
|
||||||
|
if (!flags.rampz) putch(pgm_read_byte_near(address.word));
|
||||||
|
address.word++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
putch(0x10);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Get device signature bytes */
|
||||||
|
else if(ch=='u') {
|
||||||
|
if (getch() == ' ') {
|
||||||
|
putch(0x14);
|
||||||
|
putch(SIG1);
|
||||||
|
putch(SIG2);
|
||||||
|
putch(SIG3);
|
||||||
|
putch(0x10);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Read oscillator calibration byte */
|
||||||
|
else if(ch=='v') {
|
||||||
|
byte_response(0x00);
|
||||||
|
}
|
||||||
|
// } else {
|
||||||
|
// time_count++;
|
||||||
|
// if (time_count>=MAX_TIME_COUNT) {
|
||||||
|
// app_start();
|
||||||
|
// }
|
||||||
|
// }
|
||||||
|
} /* end of forever loop */
|
||||||
|
}
|
||||||
|
|
||||||
|
void putch(char ch)
|
||||||
|
{
|
||||||
|
/* m8 */
|
||||||
|
while (!(inb(UCSRA) & _BV(UDRE)));
|
||||||
|
outb(UDR,ch);
|
||||||
|
}
|
||||||
|
|
||||||
|
char getch(void)
|
||||||
|
{
|
||||||
|
/* m8 */
|
||||||
|
uint32_t count = 0;
|
||||||
|
while(!(inb(UCSRA) & _BV(RXC))) {
|
||||||
|
/* HACKME:: here is a good place to count times*/
|
||||||
|
count++;
|
||||||
|
if (count > MAX_TIME_COUNT)
|
||||||
|
app_start();
|
||||||
|
}
|
||||||
|
return (inb(UDR));
|
||||||
|
}
|
||||||
|
|
||||||
|
void getNch(uint8_t count)
|
||||||
|
{
|
||||||
|
uint8_t i;
|
||||||
|
for(i=0;i<count;i++) {
|
||||||
|
/* m8 */
|
||||||
|
//while(!(inb(UCSRA) & _BV(RXC)));
|
||||||
|
//inb(UDR);
|
||||||
|
getch(); // need to handle time out
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void byte_response(uint8_t val)
|
||||||
|
{
|
||||||
|
if (getch() == ' ') {
|
||||||
|
putch(0x14);
|
||||||
|
putch(val);
|
||||||
|
putch(0x10);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void nothing_response(void)
|
||||||
|
{
|
||||||
|
if (getch() == ' ') {
|
||||||
|
putch(0x14);
|
||||||
|
putch(0x10);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* end of file ATmegaBOOT.c */
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
@ -1,507 +0,0 @@
|
|||||||
/**********************************************************/
|
|
||||||
/* Serial Bootloader for Atmel mega8 AVR Controller */
|
|
||||||
/* */
|
|
||||||
/* ATmegaBOOT.c */
|
|
||||||
/* */
|
|
||||||
/* Copyright (c) 2003, Jason P. Kyle */
|
|
||||||
/* */
|
|
||||||
/* Hacked by DojoCorp - ZGZ - MMX - IVR */
|
|
||||||
/* Hacked by David A. Mellis */
|
|
||||||
/* */
|
|
||||||
/* This program is free software; you can redistribute it */
|
|
||||||
/* and/or modify it under the terms of the GNU General */
|
|
||||||
/* Public License as published by the Free Software */
|
|
||||||
/* Foundation; either version 2 of the License, or */
|
|
||||||
/* (at your option) any later version. */
|
|
||||||
/* */
|
|
||||||
/* This program is distributed in the hope that it will */
|
|
||||||
/* be useful, but WITHOUT ANY WARRANTY; without even the */
|
|
||||||
/* implied warranty of MERCHANTABILITY or FITNESS FOR A */
|
|
||||||
/* PARTICULAR PURPOSE. See the GNU General Public */
|
|
||||||
/* License for more details. */
|
|
||||||
/* */
|
|
||||||
/* You should have received a copy of the GNU General */
|
|
||||||
/* Public License along with this program; if not, write */
|
|
||||||
/* to the Free Software Foundation, Inc., */
|
|
||||||
/* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
|
||||||
/* */
|
|
||||||
/* Licence can be viewed at */
|
|
||||||
/* http://www.fsf.org/licenses/gpl.txt */
|
|
||||||
/* */
|
|
||||||
/* Target = Atmel AVR m8 */
|
|
||||||
/**********************************************************/
|
|
||||||
|
|
||||||
#include <inttypes.h>
|
|
||||||
#include <avr/io.h>
|
|
||||||
#include <avr/pgmspace.h>
|
|
||||||
#include <avr/eeprom.h>
|
|
||||||
#include <avr/interrupt.h>
|
|
||||||
#include <util/delay.h>
|
|
||||||
|
|
||||||
//#define F_CPU 16000000
|
|
||||||
|
|
||||||
/* We, Malmoitians, like slow interaction
|
|
||||||
* therefore the slow baud rate ;-)
|
|
||||||
*/
|
|
||||||
//#define BAUD_RATE 9600
|
|
||||||
|
|
||||||
/* 6.000.000 is more or less 8 seconds at the
|
|
||||||
* speed configured here
|
|
||||||
*/
|
|
||||||
//#define MAX_TIME_COUNT 6000000
|
|
||||||
#define MAX_TIME_COUNT (F_CPU>>1)
|
|
||||||
///#define MAX_TIME_COUNT_MORATORY 1600000
|
|
||||||
|
|
||||||
/* SW_MAJOR and MINOR needs to be updated from time to time to avoid warning message from AVR Studio */
|
|
||||||
#define HW_VER 0x02
|
|
||||||
#define SW_MAJOR 0x01
|
|
||||||
#define SW_MINOR 0x12
|
|
||||||
|
|
||||||
// AVR-GCC compiler compatibility
|
|
||||||
// avr-gcc compiler v3.1.x and older doesn't support outb() and inb()
|
|
||||||
// if necessary, convert outb and inb to outp and inp
|
|
||||||
#ifndef outb
|
|
||||||
#define outb(sfr,val) (_SFR_BYTE(sfr) = (val))
|
|
||||||
#endif
|
|
||||||
#ifndef inb
|
|
||||||
#define inb(sfr) _SFR_BYTE(sfr)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/* defines for future compatibility */
|
|
||||||
#ifndef cbi
|
|
||||||
#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
|
|
||||||
#endif
|
|
||||||
#ifndef sbi
|
|
||||||
#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/* Adjust to suit whatever pin your hardware uses to enter the bootloader */
|
|
||||||
#define eeprom_rb(addr) eeprom_read_byte ((uint8_t *)(addr))
|
|
||||||
#define eeprom_rw(addr) eeprom_read_word ((uint16_t *)(addr))
|
|
||||||
#define eeprom_wb(addr, val) eeprom_write_byte ((uint8_t *)(addr), (uint8_t)(val))
|
|
||||||
|
|
||||||
/* Onboard LED is connected to pin PB5 */
|
|
||||||
#define LED_DDR DDRB
|
|
||||||
#define LED_PORT PORTB
|
|
||||||
#define LED_PIN PINB
|
|
||||||
#define LED PINB5
|
|
||||||
|
|
||||||
|
|
||||||
#define SIG1 0x1E // Yep, Atmel is the only manufacturer of AVR micros. Single source :(
|
|
||||||
#define SIG2 0x93
|
|
||||||
#define SIG3 0x07
|
|
||||||
#define PAGE_SIZE 0x20U //32 words
|
|
||||||
|
|
||||||
|
|
||||||
void putch(char);
|
|
||||||
char getch(void);
|
|
||||||
void getNch(uint8_t);
|
|
||||||
void byte_response(uint8_t);
|
|
||||||
void nothing_response(void);
|
|
||||||
|
|
||||||
union address_union {
|
|
||||||
uint16_t word;
|
|
||||||
uint8_t byte[2];
|
|
||||||
} address;
|
|
||||||
|
|
||||||
union length_union {
|
|
||||||
uint16_t word;
|
|
||||||
uint8_t byte[2];
|
|
||||||
} length;
|
|
||||||
|
|
||||||
struct flags_struct {
|
|
||||||
unsigned eeprom : 1;
|
|
||||||
unsigned rampz : 1;
|
|
||||||
} flags;
|
|
||||||
|
|
||||||
uint8_t buff[256];
|
|
||||||
//uint8_t address_high;
|
|
||||||
|
|
||||||
uint8_t pagesz=0x80;
|
|
||||||
|
|
||||||
uint8_t i;
|
|
||||||
//uint8_t bootuart0=0,bootuart1=0;
|
|
||||||
|
|
||||||
|
|
||||||
void (*app_start)(void) = 0x0000;
|
|
||||||
|
|
||||||
int main(void)
|
|
||||||
{
|
|
||||||
uint8_t ch,ch2;
|
|
||||||
uint16_t w;
|
|
||||||
|
|
||||||
//cbi(BL_DDR,BL);
|
|
||||||
//sbi(BL_PORT,BL);
|
|
||||||
|
|
||||||
asm volatile("nop\n\t");
|
|
||||||
|
|
||||||
/* check if flash is programmed already, if not start bootloader anyway */
|
|
||||||
//if(pgm_read_byte_near(0x0000) != 0xFF) {
|
|
||||||
|
|
||||||
/* check if bootloader pin is set low */
|
|
||||||
//if(bit_is_set(BL_PIN,BL)) app_start();
|
|
||||||
//}
|
|
||||||
|
|
||||||
/* initialize UART(s) depending on CPU defined */
|
|
||||||
/* m8 */
|
|
||||||
UBRRH = (((F_CPU/BAUD_RATE)/16)-1)>>8; // set baud rate
|
|
||||||
UBRRL = (((F_CPU/BAUD_RATE)/16)-1);
|
|
||||||
UCSRB = (1<<RXEN)|(1<<TXEN); // enable Rx & Tx
|
|
||||||
UCSRC = (1<<URSEL)|(1<<UCSZ1)|(1<<UCSZ0); // config USART; 8N1
|
|
||||||
|
|
||||||
//UBRRL = (uint8_t)(F_CPU/(BAUD_RATE*16L)-1);
|
|
||||||
//UBRRH = (F_CPU/(BAUD_RATE*16L)-1) >> 8;
|
|
||||||
//UCSRA = 0x00;
|
|
||||||
//UCSRC = 0x86;
|
|
||||||
//UCSRB = _BV(TXEN)|_BV(RXEN);
|
|
||||||
|
|
||||||
|
|
||||||
/* this was giving uisp problems, so I removed it; without it, the boot
|
|
||||||
works on with uisp and avrdude on the mac (at least). */
|
|
||||||
//putch('\0');
|
|
||||||
|
|
||||||
//uint32_t l;
|
|
||||||
//uint32_t time_count;
|
|
||||||
//time_count=0;
|
|
||||||
|
|
||||||
/* set LED pin as output */
|
|
||||||
sbi(LED_DDR,LED);
|
|
||||||
for (i = 0; i < 16; i++) {
|
|
||||||
outb(LED_PORT, inb(LED_PORT) ^ _BV(LED));
|
|
||||||
_delay_loop_2(0);
|
|
||||||
}
|
|
||||||
|
|
||||||
//for (l=0; l<40000000; l++)
|
|
||||||
//outb(LED_PORT, inb(LED_PORT) ^= _BV(LED));
|
|
||||||
|
|
||||||
/* flash onboard LED three times to signal entering of bootloader */
|
|
||||||
//for(i=0; i<3; ++i) {
|
|
||||||
//for(l=0; l<40000000; ++l);
|
|
||||||
//sbi(LED_PORT,LED);
|
|
||||||
//for(l=0; l<40000000; ++l);
|
|
||||||
//cbi(LED_PORT,LED);
|
|
||||||
//}
|
|
||||||
|
|
||||||
/* see comment at previous call to putch() */
|
|
||||||
//putch('\0'); // this line is needed for the synchronization of the programmer
|
|
||||||
|
|
||||||
/* forever */
|
|
||||||
for (;;) {
|
|
||||||
//if((inb(UCSRA) & _BV(RXC))){
|
|
||||||
/* get character from UART */
|
|
||||||
ch = getch();
|
|
||||||
|
|
||||||
/* A bunch of if...else if... gives smaller code than switch...case ! */
|
|
||||||
|
|
||||||
/* Hello is anyone home ? */
|
|
||||||
if(ch=='0') {
|
|
||||||
nothing_response();
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Request programmer ID */
|
|
||||||
/* Not using PROGMEM string due to boot block in m128 being beyond 64kB boundry */
|
|
||||||
/* Would need to selectively manipulate RAMPZ, and it's only 9 characters anyway so who cares. */
|
|
||||||
else if(ch=='1') {
|
|
||||||
if (getch() == ' ') {
|
|
||||||
putch(0x14);
|
|
||||||
putch('A');
|
|
||||||
putch('V');
|
|
||||||
putch('R');
|
|
||||||
putch(' ');
|
|
||||||
putch('I');
|
|
||||||
putch('S');
|
|
||||||
putch('P');
|
|
||||||
putch(0x10);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* AVR ISP/STK500 board commands DON'T CARE so default nothing_response */
|
|
||||||
else if(ch=='@') {
|
|
||||||
ch2 = getch();
|
|
||||||
if (ch2>0x85) getch();
|
|
||||||
nothing_response();
|
|
||||||
}
|
|
||||||
|
|
||||||
/* AVR ISP/STK500 board requests */
|
|
||||||
else if(ch=='A') {
|
|
||||||
ch2 = getch();
|
|
||||||
if(ch2==0x80) byte_response(HW_VER); // Hardware version
|
|
||||||
else if(ch2==0x81) byte_response(SW_MAJOR); // Software major version
|
|
||||||
else if(ch2==0x82) byte_response(SW_MINOR); // Software minor version
|
|
||||||
//else if(ch2==0x98) byte_response(0x03); // Unknown but seems to be required by avr studio 3.56
|
|
||||||
else byte_response(0x00); // Covers various unnecessary responses we don't care about
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Device Parameters DON'T CARE, DEVICE IS FIXED */
|
|
||||||
else if(ch=='B') {
|
|
||||||
getNch(20);
|
|
||||||
nothing_response();
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Parallel programming stuff DON'T CARE */
|
|
||||||
else if(ch=='E') {
|
|
||||||
getNch(5);
|
|
||||||
nothing_response();
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Enter programming mode */
|
|
||||||
else if(ch=='P') {
|
|
||||||
nothing_response();
|
|
||||||
// FIXME: modified only here by DojoCorp, Mumbai, India, 20050626
|
|
||||||
//time_count=0; // exted the delay once entered prog.mode
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Leave programming mode */
|
|
||||||
else if(ch=='Q') {
|
|
||||||
nothing_response();
|
|
||||||
//time_count=MAX_TIME_COUNT_MORATORY; // once the programming is done,
|
|
||||||
// we should start the application
|
|
||||||
// but uisp has problems with this,
|
|
||||||
// therefore we just change the times
|
|
||||||
// and give the programmer 1 sec to react
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Erase device, don't care as we will erase one page at a time anyway. */
|
|
||||||
else if(ch=='R') {
|
|
||||||
nothing_response();
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Set address, little endian. EEPROM in bytes, FLASH in words */
|
|
||||||
/* Perhaps extra address bytes may be added in future to support > 128kB FLASH. */
|
|
||||||
/* This might explain why little endian was used here, big endian used everywhere else. */
|
|
||||||
else if(ch=='U') {
|
|
||||||
address.byte[0] = getch();
|
|
||||||
address.byte[1] = getch();
|
|
||||||
nothing_response();
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Universal SPI programming command, disabled. Would be used for fuses and lock bits. */
|
|
||||||
else if(ch=='V') {
|
|
||||||
getNch(4);
|
|
||||||
byte_response(0x00);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Write memory, length is big endian and is in bytes */
|
|
||||||
else if(ch=='d') {
|
|
||||||
length.byte[1] = getch();
|
|
||||||
length.byte[0] = getch();
|
|
||||||
flags.eeprom = 0;
|
|
||||||
if (getch() == 'E') flags.eeprom = 1;
|
|
||||||
for (w=0;w<length.word;w++) {
|
|
||||||
buff[w] = getch(); // Store data in buffer, can't keep up with serial data stream whilst programming pages
|
|
||||||
}
|
|
||||||
if (getch() == ' ') {
|
|
||||||
if (flags.eeprom) { //Write to EEPROM one byte at a time
|
|
||||||
for(w=0;w<length.word;w++) {
|
|
||||||
eeprom_wb(address.word,buff[w]);
|
|
||||||
address.word++;
|
|
||||||
}
|
|
||||||
} else { //Write to FLASH one page at a time
|
|
||||||
//if (address.byte[1]>127) address_high = 0x01; //Only possible with m128, m256 will need 3rd address byte. FIXME
|
|
||||||
//else address_high = 0x00;
|
|
||||||
|
|
||||||
//address.word = address.word << 1; //address * 2 -> byte location
|
|
||||||
//if ((length.byte[0] & 0x01)) length.word++; //Even up an odd number of bytes
|
|
||||||
cli(); //Disable interrupts, just to be sure
|
|
||||||
while(bit_is_set(EECR,EEWE)); //Wait for previous EEPROM writes to complete
|
|
||||||
asm volatile(
|
|
||||||
"clr r17 \n\t" //page_word_count
|
|
||||||
"lds r30,address \n\t" //Address of FLASH location (in words)
|
|
||||||
"lds r31,address+1 \n\t"
|
|
||||||
"lsl r30 \n\t" //address * 2 -> byte location
|
|
||||||
"rol r31 \n\t"
|
|
||||||
"ldi r28,lo8(buff) \n\t" //Start of buffer array in RAM
|
|
||||||
"ldi r29,hi8(buff) \n\t"
|
|
||||||
"lds r24,length \n\t" //Length of data to be written (in bytes)
|
|
||||||
"lds r25,length+1 \n\t"
|
|
||||||
"sbrs r24,0 \n\t" //Even up an odd number of bytes
|
|
||||||
"rjmp length_loop \n\t"
|
|
||||||
"adiw r24,1 \n\t"
|
|
||||||
"length_loop: \n\t" //Main loop, repeat for number of words in block
|
|
||||||
"cpi r17,0x00 \n\t" //If page_word_count=0 then erase page
|
|
||||||
"brne no_page_erase \n\t"
|
|
||||||
"rcall wait_spm \n\t"
|
|
||||||
// "wait_spm1: \n\t"
|
|
||||||
// "lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
||||||
// "andi r16,1 \n\t"
|
|
||||||
// "cpi r16,1 \n\t"
|
|
||||||
// "breq wait_spm1 \n\t"
|
|
||||||
"ldi r16,0x03 \n\t" //Erase page pointed to by Z
|
|
||||||
"sts %0,r16 \n\t"
|
|
||||||
"spm \n\t"
|
|
||||||
"rcall wait_spm \n\t"
|
|
||||||
// "wait_spm2: \n\t"
|
|
||||||
// "lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
||||||
// "andi r16,1 \n\t"
|
|
||||||
// "cpi r16,1 \n\t"
|
|
||||||
// "breq wait_spm2 \n\t"
|
|
||||||
"ldi r16,0x11 \n\t" //Re-enable RWW section
|
|
||||||
"sts %0,r16 \n\t"
|
|
||||||
"spm \n\t"
|
|
||||||
"no_page_erase: \n\t"
|
|
||||||
"ld r0,Y+ \n\t" //Write 2 bytes into page buffer
|
|
||||||
"ld r1,Y+ \n\t"
|
|
||||||
|
|
||||||
"rcall wait_spm \n\t"
|
|
||||||
// "wait_spm3: \n\t"
|
|
||||||
// "lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
||||||
// "andi r16,1 \n\t"
|
|
||||||
// "cpi r16,1 \n\t"
|
|
||||||
// "breq wait_spm3 \n\t"
|
|
||||||
"ldi r16,0x01 \n\t" //Load r0,r1 into FLASH page buffer
|
|
||||||
"sts %0,r16 \n\t"
|
|
||||||
"spm \n\t"
|
|
||||||
|
|
||||||
"inc r17 \n\t" //page_word_count++
|
|
||||||
"cpi r17,%1 \n\t"
|
|
||||||
"brlo same_page \n\t" //Still same page in FLASH
|
|
||||||
"write_page: \n\t"
|
|
||||||
"clr r17 \n\t" //New page, write current one first
|
|
||||||
"rcall wait_spm \n\t"
|
|
||||||
// "wait_spm4: \n\t"
|
|
||||||
// "lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
||||||
// "andi r16,1 \n\t"
|
|
||||||
// "cpi r16,1 \n\t"
|
|
||||||
// "breq wait_spm4 \n\t"
|
|
||||||
"ldi r16,0x05 \n\t" //Write page pointed to by Z
|
|
||||||
"sts %0,r16 \n\t"
|
|
||||||
"spm \n\t"
|
|
||||||
"rcall wait_spm \n\t"
|
|
||||||
// "wait_spm5: \n\t"
|
|
||||||
// "lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
||||||
// "andi r16,1 \n\t"
|
|
||||||
// "cpi r16,1 \n\t"
|
|
||||||
// "breq wait_spm5 \n\t"
|
|
||||||
"ldi r16,0x11 \n\t" //Re-enable RWW section
|
|
||||||
"sts %0,r16 \n\t"
|
|
||||||
"spm \n\t"
|
|
||||||
"same_page: \n\t"
|
|
||||||
"adiw r30,2 \n\t" //Next word in FLASH
|
|
||||||
"sbiw r24,2 \n\t" //length-2
|
|
||||||
"breq final_write \n\t" //Finished
|
|
||||||
"rjmp length_loop \n\t"
|
|
||||||
|
|
||||||
"wait_spm: \n\t"
|
|
||||||
"lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
||||||
"andi r16,1 \n\t"
|
|
||||||
"cpi r16,1 \n\t"
|
|
||||||
"breq wait_spm \n\t"
|
|
||||||
"ret \n\t"
|
|
||||||
|
|
||||||
"final_write: \n\t"
|
|
||||||
"cpi r17,0 \n\t"
|
|
||||||
"breq block_done \n\t"
|
|
||||||
"adiw r24,2 \n\t" //length+2, fool above check on length after short page write
|
|
||||||
"rjmp write_page \n\t"
|
|
||||||
"block_done: \n\t"
|
|
||||||
"clr __zero_reg__ \n\t" //restore zero register
|
|
||||||
: "=m" (SPMCR) : "M" (PAGE_SIZE) : "r0","r16","r17","r24","r25","r28","r29","r30","r31");
|
|
||||||
|
|
||||||
/* Should really add a wait for RWW section to be enabled, don't actually need it since we never */
|
|
||||||
/* exit the bootloader without a power cycle anyhow */
|
|
||||||
}
|
|
||||||
putch(0x14);
|
|
||||||
putch(0x10);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Read memory block mode, length is big endian. */
|
|
||||||
else if(ch=='t') {
|
|
||||||
length.byte[1] = getch();
|
|
||||||
length.byte[0] = getch();
|
|
||||||
if (getch() == 'E') flags.eeprom = 1;
|
|
||||||
else {
|
|
||||||
flags.eeprom = 0;
|
|
||||||
address.word = address.word << 1; // address * 2 -> byte location
|
|
||||||
}
|
|
||||||
if (getch() == ' ') { // Command terminator
|
|
||||||
putch(0x14);
|
|
||||||
for (w=0;w < length.word;w++) { // Can handle odd and even lengths okay
|
|
||||||
if (flags.eeprom) { // Byte access EEPROM read
|
|
||||||
putch(eeprom_rb(address.word));
|
|
||||||
address.word++;
|
|
||||||
} else {
|
|
||||||
if (!flags.rampz) putch(pgm_read_byte_near(address.word));
|
|
||||||
address.word++;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
putch(0x10);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Get device signature bytes */
|
|
||||||
else if(ch=='u') {
|
|
||||||
if (getch() == ' ') {
|
|
||||||
putch(0x14);
|
|
||||||
putch(SIG1);
|
|
||||||
putch(SIG2);
|
|
||||||
putch(SIG3);
|
|
||||||
putch(0x10);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Read oscillator calibration byte */
|
|
||||||
else if(ch=='v') {
|
|
||||||
byte_response(0x00);
|
|
||||||
}
|
|
||||||
// } else {
|
|
||||||
// time_count++;
|
|
||||||
// if (time_count>=MAX_TIME_COUNT) {
|
|
||||||
// app_start();
|
|
||||||
// }
|
|
||||||
// }
|
|
||||||
} /* end of forever loop */
|
|
||||||
}
|
|
||||||
|
|
||||||
void putch(char ch)
|
|
||||||
{
|
|
||||||
/* m8 */
|
|
||||||
while (!(inb(UCSRA) & _BV(UDRE)));
|
|
||||||
outb(UDR,ch);
|
|
||||||
}
|
|
||||||
|
|
||||||
char getch(void)
|
|
||||||
{
|
|
||||||
/* m8 */
|
|
||||||
uint32_t count = 0;
|
|
||||||
while(!(inb(UCSRA) & _BV(RXC))) {
|
|
||||||
/* HACKME:: here is a good place to count times*/
|
|
||||||
count++;
|
|
||||||
if (count > MAX_TIME_COUNT)
|
|
||||||
app_start();
|
|
||||||
}
|
|
||||||
return (inb(UDR));
|
|
||||||
}
|
|
||||||
|
|
||||||
void getNch(uint8_t count)
|
|
||||||
{
|
|
||||||
uint8_t i;
|
|
||||||
for(i=0;i<count;i++) {
|
|
||||||
/* m8 */
|
|
||||||
//while(!(inb(UCSRA) & _BV(RXC)));
|
|
||||||
//inb(UDR);
|
|
||||||
getch(); // need to handle time out
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
void byte_response(uint8_t val)
|
|
||||||
{
|
|
||||||
if (getch() == ' ') {
|
|
||||||
putch(0x14);
|
|
||||||
putch(val);
|
|
||||||
putch(0x10);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
void nothing_response(void)
|
|
||||||
{
|
|
||||||
if (getch() == ' ') {
|
|
||||||
putch(0x14);
|
|
||||||
putch(0x10);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* end of file ATmegaBOOT.c */
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
1
keyboard/avr-bootloader/main.c
Symbolic link
1
keyboard/avr-bootloader/main.c
Symbolic link
@ -0,0 +1 @@
|
|||||||
|
../../ioc/avr-bootloader/main.c
|
||||||
88
printer/avr-bootloader/Makefile
Normal file
88
printer/avr-bootloader/Makefile
Normal file
@ -0,0 +1,88 @@
|
|||||||
|
# Makefile for ATmegaBOOT
|
||||||
|
# E.Lins, 2004-10-14
|
||||||
|
|
||||||
|
# program name should not be changed...
|
||||||
|
PROGRAM = main
|
||||||
|
|
||||||
|
PRODUCT=atmega8
|
||||||
|
|
||||||
|
# enter the parameters for the UISP isp tool
|
||||||
|
ISPPARAMS = -dprog=stk500 -dserial=$(SERIAL) -dspeed=115200
|
||||||
|
|
||||||
|
|
||||||
|
#DIRAVR = /usr/local/avr
|
||||||
|
DIRAVRBIN = $(DIRAVR)/bin
|
||||||
|
DIRAVRUTILS = $(DIRAVR)/utils/bin
|
||||||
|
DIRINC = $(DIRAVR)/include
|
||||||
|
DIRLIB = $(DIRAVR)/avr/lib
|
||||||
|
|
||||||
|
|
||||||
|
MCU_TARGET = atmega8
|
||||||
|
LDSECTION = --section-start=.text=0x1c00
|
||||||
|
FUSE_L = 0xdf
|
||||||
|
FUSE_H = 0xca
|
||||||
|
ISPFUSES = $(DIRAVRBIN)/uisp -dpart=ATmega8 $(ISPPARAMS) --wr_fuse_l=$(FUSE_L) --wr_fuse_h=$(FUSE_H)
|
||||||
|
ISPFLASH = $(DIRAVRBIN)/uisp -dpart=ATmega8 $(ISPPARAMS) --erase --upload if=$(PROGRAM).hex -v
|
||||||
|
|
||||||
|
|
||||||
|
OBJ = $(PROGRAM).o
|
||||||
|
OPTIMIZE = -Os -funsigned-char -funsigned-bitfields -fno-inline-small-functions
|
||||||
|
|
||||||
|
DEFS = -DF_CPU=16000000 -DBAUD_RATE=19200
|
||||||
|
LIBS =
|
||||||
|
|
||||||
|
CC = $(DIRAVRBIN)/avr-gcc
|
||||||
|
|
||||||
|
|
||||||
|
# Override is only needed by avr-lib build system.
|
||||||
|
|
||||||
|
override CFLAGS = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) -D$(PRODUCT) $(DEFS) -I$(DIRINC)
|
||||||
|
override LDFLAGS = -Wl,-Map,$(PROGRAM).map,$(LDSECTION)
|
||||||
|
|
||||||
|
OBJCOPY = $(DIRAVRBIN)/avr-objcopy
|
||||||
|
OBJDUMP = $(DIRAVRBIN)/avr-objdump
|
||||||
|
SIZE = $(DIRAVRBIN)/avr-size
|
||||||
|
|
||||||
|
all: $(PROGRAM).elf lst text asm size
|
||||||
|
|
||||||
|
isp: $(PROGRAM).hex
|
||||||
|
$(ISPFUSES)
|
||||||
|
$(ISPFLASH)
|
||||||
|
|
||||||
|
$(PROGRAM).elf: $(OBJ)
|
||||||
|
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
|
||||||
|
|
||||||
|
clean:
|
||||||
|
rm -rf *.s
|
||||||
|
rm -rf *.o *.elf
|
||||||
|
rm -rf *.lst *.map
|
||||||
|
|
||||||
|
asm: $(PROGRAM).s
|
||||||
|
|
||||||
|
%.s: %.c
|
||||||
|
$(CC) -S $(CFLAGS) -g1 $^
|
||||||
|
|
||||||
|
lst: $(PROGRAM).lst
|
||||||
|
|
||||||
|
%.lst: %.elf
|
||||||
|
$(OBJDUMP) -h -S $< > $@
|
||||||
|
|
||||||
|
size: $(PROGRAM).hex
|
||||||
|
$(SIZE) $^
|
||||||
|
|
||||||
|
# Rules for building the .text rom images
|
||||||
|
|
||||||
|
text: hex bin srec
|
||||||
|
|
||||||
|
hex: $(PROGRAM).hex
|
||||||
|
bin: $(PROGRAM).bin
|
||||||
|
srec: $(PROGRAM).srec
|
||||||
|
|
||||||
|
%.hex: %.elf
|
||||||
|
$(OBJCOPY) -j .text -j .data -O ihex $< $@
|
||||||
|
|
||||||
|
%.srec: %.elf
|
||||||
|
$(OBJCOPY) -j .text -j .data -O srec $< $@
|
||||||
|
|
||||||
|
%.bin: %.elf
|
||||||
|
$(OBJCOPY) -j .text -j .data -O binary $< $@
|
||||||
1
printer/avr-bootloader/main.c
Symbolic link
1
printer/avr-bootloader/main.c
Symbolic link
@ -0,0 +1 @@
|
|||||||
|
../../ioc/avr-bootloader/main.c
|
||||||
Binary file not shown.
Loading…
Reference in New Issue
Block a user