بوت لودر

[alighasemi72]

سلام
میخوای یک برنامه بوت لودر خاص برای اتمگا 128 بنویسم، ولی برنامه اصلا چیزی رو نمینویسه روی حافظه فلش، برنامه مشابه ( با تغییر متغییرها و آدرس حافظه و .. ) روی اتمگا 8 و 32 کار کرده. ممنون میشم اگه راهنمایی کنید.

#define F_CPU 8000000UL




#include <stdlib.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include <util/delay.h>
#include <inttypes.h>
#include <avr/boot.h>
#include <avr/wdt.h>
#include <avr/eeprom.h>




void boot_program_page (uint32_t page, uint8_t *buf);


int main(void)
{
	_delay_ms(100);
	uint8_t A [ SPM_PAGESIZE ]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
								0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
								0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
								0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
								0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
								0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
								0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
								0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
	_delay_ms(100);
	boot_program_page(0,A);
	_delay_ms(100);
	DDRC = 255;
	PORTC = 1;
	while (1)
	{
	}
}


void boot_program_page (uint32_t page, uint8_t *buf)
{
	uint16_t i;
	uint8_t sreg;


	// Disable interrupts.


	sreg = SREG;
	cli();
	
	eeprom_busy_wait ();


	boot_page_erase (page);
	boot_spm_busy_wait ();      // Wait until the memory is erased.


	for (i=0; i<SPM_PAGESIZE; i+=2)
	{
		// Set up little-endian word.


		uint16_t w = *buf++;
		w += (*buf++) << 8;
		
		boot_page_fill (page + i, w);
	}


	boot_page_write (page);     // Store buffer in flash page.
	boot_spm_busy_wait();       // Wait until the memory is written.


	// Reenable RWW-section again. We need this if we want to jump back
	// to the application after bootloading.


	boot_rww_enable ();


	// Re-enable interrupts (if they were ever enabled).


	SREG = sreg;
}