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Adding ATmega328 support.

This commit is contained in:
David A. Mellis 2008-11-09 21:02:20 +00:00
parent 4bafc461c5
commit 1d5a9b52b9
2 changed files with 21 additions and 9 deletions
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23
hardware/bootloaders/atmega168/ATmegaBOOT_168.c
View File

@ -69,7 +69,7 @@
/* the current avr-libc eeprom functions do not support the ATmega168 */
/* own eeprom write/read functions are used instead */
#ifndef __AVR_ATmega168__
#if !defined(__AVR_ATmega168__) || !defined(__AVR_ATmega328P__)
#include <avr/eeprom.h>
#endif
@ -179,6 +179,11 @@
#define SIG3 0x06
#define PAGE_SIZE 0x40U //64 words
#elif defined __AVR_ATmega328P__
#define SIG2 0x95
#define SIG3 0x0F
#define PAGE_SIZE 0x40U //64 words
#elif defined __AVR_ATmega162__
#define SIG2 0x94
#define SIG3 0x04
@ -337,7 +342,7 @@ int main(void)
UBRRHI = (F_CPU/(BAUD_RATE*16L)-1) >> 8;
UCSRA = 0x00;
UCSRB = _BV(TXEN)|_BV(RXEN);
#elif defined __AVR_ATmega168__
#elif defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__)
UBRR0L = (uint8_t)(F_CPU/(BAUD_RATE*16L)-1);
UBRR0H = (F_CPU/(BAUD_RATE*16L)-1) >> 8;
UCSR0B = (1<<RXEN0) | (1<<TXEN0);
@ -509,7 +514,7 @@ int main(void)
if (flags.eeprom) { //Write to EEPROM one byte at a time
address.word <<= 1;
for(w=0;w<length.word;w++) {
#ifdef __AVR_ATmega168__
#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__)
while(EECR & (1<<EEPE));
EEAR = (uint16_t)(void *)address.word;
EEDR = buff[w];
@ -627,7 +632,7 @@ int main(void)
"rjmp write_page \n\t"
"block_done: \n\t"
"clr __zero_reg__ \n\t" //restore zero register
#if defined __AVR_ATmega168__
#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__)
: "=m" (SPMCSR) : "M" (PAGE_SIZE) : "r0","r16","r17","r24","r25","r28","r29","r30","r31"
#else
: "=m" (SPMCR) : "M" (PAGE_SIZE) : "r0","r16","r17","r24","r25","r28","r29","r30","r31"
@ -660,7 +665,7 @@ int main(void)
putch(0x14);
for (w=0;w < length.word;w++) { // Can handle odd and even lengths okay
if (flags.eeprom) { // Byte access EEPROM read
#ifdef __AVR_ATmega168__
#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__)
while(EECR & (1<<EEPE));
EEAR = (uint16_t)(void *)address.word;
EECR |= (1<<EERE);
@ -874,7 +879,7 @@ void putch(char ch)
while (!(UCSR1A & _BV(UDRE1)));
UDR1 = ch;
}
#elif defined __AVR_ATmega168__
#elif defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__)
while (!(UCSR0A & _BV(UDRE0)));
UDR0 = ch;
#else
@ -897,7 +902,7 @@ char getch(void)
return UDR1;
}
return 0;
#elif defined __AVR_ATmega168__
#elif defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__)
uint32_t count = 0;
while(!(UCSR0A & _BV(RXC0))){
/* 20060803 DojoCorp:: Addon coming from the previous Bootloader*/
@ -934,7 +939,7 @@ void getNch(uint8_t count)
while(!(UCSR1A & _BV(RXC1)));
UDR1;
}
#elif defined __AVR_ATmega168__
#elif defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__)
getch();
#else
/* m8,16,32,169,8515,8535,163 */
@ -973,7 +978,7 @@ void nothing_response(void)
void flash_led(uint8_t count)
{
for (i = 0; i < count; ++i) {
while (count--) {
LED_PORT |= _BV(LED);
_delay_ms(100);
LED_PORT &= ~_BV(LED);

7
hardware/bootloaders/atmega168/Makefile
View File

@ -115,6 +115,13 @@ ng: AVR_FREQ = 16000000L
ng: HFUSE = DD
ng: LFUSE = FF
atmega328: TARGET = atmega328
atmega328: CFLAGS += '-DMAX_TIME_COUNT=F_CPU>>4' '-DNUM_LED_FLASHES=1'
atmega328: $(PROGRAM)_atmega328.hex
atmega328: AVR_FREQ = 16000000L
atmega328: MCU_TARGET = atmega328p
atmega328: LDSECTION = --section-start=.text=0x7800
isp: $(PROGRAM)_$(TARGET).hex
$(ISPFUSES)
$(ISPFLASH)