int main( void )
{
volatile unsigned long ul;
// Initialize address and notify host
pCurrent = (u08*)vStart;
u32 kopycounter=0;
prvSetupHardware( );
// Version Controll
debug_msg( "NowBoot V1.2; Compiled at: "__DATE__" "__TIME__"\r");
wait_ms(1000);
debug_msg("NowBoot: Running drives and filesystem.");
StorageInit();
wait_ms(100);
debug_msg("NowBoot: Checking for new firmware...");
//f_rename ( "1:fmw/fmw_n.old", "fmw/fmw_n.bin" ); //For tests only
res = f_open(&firmwarefile, "1:fmw/fmw_n.bin", FA_OPEN_EXISTING | FA_READ);
if(res != FR_OK){
f_close(&firmwarefile);
debug_msg("NowBoot: Can`t find new firmware.");
debug_msg("NowBoot: Checking for in-flash firmware");
if((*((u08*)vStart+4)==0xFF)&&(*((u08*)(vStart+5))==0xff)){
debug_msg("NowBoot: Flash is empty!");
debug_msg("NowBoot: Opening default firmware!");
res = f_open(&firmwarefile, "1:fmw/fmw_0.bin", FA_OPEN_EXISTING | FA_READ);
if(res != FR_OK){
f_close(&firmwarefile);
debug_msg("NowBoot: Can`t find any firmware file... Nothing to do.");
for(;;)AT91C_BASE_SYS->WDTC_WDCR = 0xA5000001; //endless loop
}
goto fmw_prog;
}
else{
debug_msg("NowBoot: Flash contain firmware.");
goto app_now;
}
}else{
debug_msg("NowBoot: Found new firmware.");
fmw_prog:
debug_msg("NowBoot: Start programming...");
wait_ms(300);
debug_txt("\rCopying page: ");
for (;;) {
debug_txt("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bKopiuje strone: "); debug32_tdec(kopycounter++);
res = f_read(&firmwarefile, page, sizeof(page), &br); /* Read a chunk of src file */
if (res || br == 0) {
wait_ms(100);
debug_msg("NowBoot: Copying finshed.");
break; /* error or eof */
}
//memset(page,0xff,sizeof(page)); //for tests only
flash_write(pCurrent , (void *) page );
pCurrent+= MEMORY_PAGE_SIZE;
}
}
f_close(&firmwarefile);
/*
TO DO:
MD5 verification
*/
wait_ms(300);
debug_msg("NowBoot: Firmware upgrade successful.");
debug_msg("NowBoot: Removing firmware file.");
f_unlink ( "1:fmw/fmw_n.old" ); //removeing old firmware
f_rename ( "1:fmw/fmw_n.bin", "fmw/fmw_n.old" );
app_now:
wait_ms(100);
debug_msg("NowBoot: End of Boot.");
spiInit();
wait_ms(1000);
AT91C_BASE_SYS->WDTC_WDCR = 0xA5000001; //WDT restart
asm volatile(
"LDR pc, =0x00108000" //Jump to firmware start
);
debug_msg("NowBoot: Something bad happened! I should never be here.");
wait_ms(100);
vPortSoftReset();
return 0;
}
//prints text starting at str
//adds new line first
void debug_msg(char *str)
{
debug_chr('\r');
debug_chr('\n');
debug_txt(str);
}