z80/twiboot
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Made changes for ATmega328P

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This commit is contained in:
Dreaded_X 2020-12-30 03:26:13 +01:00
parent baf5a895b5
commit 9bed754a7d
2 changed files with 7 additions and 7 deletions
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4
Makefile
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@ -8,10 +8,10 @@ TARGET = twiboot
SOURCE = $(wildcard *.c)
# select MCU
MCU = attiny85
MCU = atmega328p
AVRDUDE_PROG := -c avr910 -b 115200 -P /dev/ttyUSB0
#AVRDUDE_PROG := -c dragon_isp -P usb
AVRDUDE_PROG := -c usbasp -P usb
# ---------------------------------------------------------------------------

10
main.c
View File

@ -21,12 +21,12 @@
#include <avr/boot.h>
#include <avr/pgmspace.h>
#define VERSION_STRING "TWIBOOT v3.1"
#define VERSION_STRING "TWIBOOT v3.1 (M)"
#define EEPROM_SUPPORT 1
#define LED_SUPPORT 1
#ifndef USE_CLOCKSTRETCH
#define USE_CLOCKSTRETCH 0
#define USE_CLOCKSTRETCH 1
#endif
#ifndef VIRTUAL_BOOT_SECTION
@ -37,8 +37,8 @@
#define TWI_ADDRESS 0x29
#endif
#define F_CPU 8000000ULL
#define TIMER_DIVISOR 1024
#define F_CPU 16000000ULL
#define TIMER_DIVISOR 2048
#define TIMER_IRQFREQ_MS 25
#define TIMEOUT_MS 1000
@ -741,7 +741,7 @@ static void TIMER0_OVF_vect(void)
TCNT0 = 0xFF - TIMER_MSEC2TICKS(TIMER_IRQFREQ_MS);
/* blink LED while running */
LED_GN_TOGGLE();
/* LED_GN_TOGGLE(); */
/* count down for app-boot */
if (boot_timeout > 1)