void configStart() {
// Load the config from EEPROM
readConfigFromEEPROM();
// Check for config file on SD card
FRESULT fr = f_stat("config.txt", NULL);
switch (fr) {
case FR_OK:
// Config file exists
break;
case FR_NO_FILE:
// Config file does not exist, create default
readConfigDefault();
writeConfigToFile();
break;
default:
// Unknown file read error
error(ERROR_READ_CONFIG);
}
fr = f_stat(converterFn, NULL);
switch (fr) {
case FR_OK:
// Converter file exists
break;
case FR_NO_FILE:
// Create exe file from binary
writeConverterToFile();
break;
default:
// Unknown file read error
f_unlink(converterFn);
error(ERROR_READ_CONFIG);
}
fr = f_stat(userGuideFn, NULL);
switch (fr) {
case FR_OK:
// User Guide file exists
break;
case FR_NO_FILE:
writeUserGuideToFile();
break;
default:
// Unknown file read error
f_unlink(userGuideFn);
error(ERROR_READ_CONFIG);
}
// Read config file from card
readConfigFromFile();
// Write config back to card
writeConfigToFile();
// Update the config back to EEPROM
writeConfigToEEPROM();
}
/*
* initializes sd card and reads config file
*/
void initSDCard()
{
int retVal=0;
int timeout = 0;
DWORD P1;
// if(sdcInitDone) //init procedure already started
// return; // Thread wird sowieso beendet
curFileID=-99;
//Set output Pins for LEDs
DDR03_D7 = 1; //Read (Pin 16)
DDR03_D6 = 1; //Write (Pin 15)
PDR03_P7 = 1;
PDR03_P6 = 1;
mmc_initPorts();
// Seg_Hex(0xC);
//wait for card to be inserted
while(mmc_getCardStatus() > 0) //it is 0 if we have a card
{
//return after 10 sec
if(timeout > 20)
return;
#ifdef SDCARD_DEBUG
printf("waiting for card.. \r\n");
#endif
os_wait(500);
timeout++;
}
// Seg_Hex(0xF);
os_wait(200);
//initialize card
retVal=mmc_init();
os_wait(200);
//mount FAT file system
P1=0;
f_mount((BYTE)P1, &fatfs[P1]);
if(curFileID==-99) //has not been set
SetCurrentFileID(1,1);
sdcInitDone=1;
//read configuration file from sd card
readConfigFromFile();
Seg_Hex(0x00);
}