DRESULT disk_write (
BYTE pdrv, /* Physical drive nmuber (0..) */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address (LBA) */
UINT count /* Number of sectors to write (1..128) */
)
{
DRESULT res;
int32_t result;
switch (pdrv)
{
case 0 : // first (only) drive is SD card
res = RES_OK; // assume this works
// translate the arguments here
while (count)
{
result = SDWriteBlock(sector, (uint8_t *)buff);
// xprintf("\n\rIn disk_write(), SDWriteBlock returns %d.", result);
if (result != SDCARD_OK)
{
res = RES_ERROR;
break;
}
sector++;
count--;
buff = buff + 512; // SD card library uses sector size of 512; FatFS better, also!
}
// translate the reslut code here
return res;
default:
break;
}
return RES_PARERR;
}
main()
{
// Disable JTAG (on RA0 and RA1 )
mJTAGPortEnable( DEBUG_JTAGPORT_OFF );
// Configure the device for maximum performance but do not change the PBDIV
// Given the options, this function will change the flash wait states, RAM
// wait state and enable prefetch cache but will not change the PBDIV.
// The PBDIV value is already set via the pragma FPBDIV option above..
SYSTEMConfig(GetSystemClock(), SYS_CFG_WAIT_STATES | SYS_CFG_PCACHE);
initializeUART();
initializeADC();
initializeLCD();
initializeRPG();
/* Initialize SD card */
setup_SDSPI();
SD_setStart();
/* Fill tempBuffer[] with int 0 to 63
* Write it to the current block.
* Empty tempBuffer[] to all 0.
* Read from the current block to make sure that it returns the right value.
*/
fillTempBuffer();
testSDReadWrite(tempBuffer);
curr_read_block = curr_block;
ConfigTimer1(); // Enable Timer1 for second counts
configureInterrupts();
// T2CON = 0x8030; // TMR1 on, prescale 1:256 PB
mPORTASetPinsDigitalOut( LED_MASK ); // LEDs = output
mPORTDSetPinsDigitalIn( PB_MASK_D ); // PBs on D = input
curr_state = READY;
// enable interrupts
INTEnableInterrupts();
int i = 0;
while( 1 )
{
if (getPrintToUARTFlag() == 1){
LCDMenuControl();
//mPORTAToggleBits( LED_MASK );
convertAndPrintIntegerToString("i => ", i++);
convertAndPrintIntegerToString("timeElapse => ", timeElapsed);
convertAndPrintIntegerToString("timeElapsedLEDSample => ", timeElapsedLEDSample);
convertAndPrintIntegerToString("timeElapsedLEDTurnedOff => ", timeElapsedLEDTurnedOff);
convertAndPrintIntegerToString("sampleLEDNow => ", sampleLEDNow);
convertAndPrintIntegerToString(" ADC Value => ", getChannel5Value());
printShadowDetect();
printLightLevel();
drawLightDetectedBar();
controlPowerRelay();
switch(curr_state) {
case READY : WriteString("State => READY ");
break;
case SLEEP : WriteString("State => SLEEP ");
break;
case HIBERNATE : WriteString("State => HIBERNATE");
break;
case BUSY : WriteString("State => BUSY ");
break;
}
WriteString("\r");
setPrintToUARTFlag(0);
}
if (NEW_BYTE_RECEIVED == 1){
curr_state = READY;
NEW_BYTE_RECEIVED = 0;
//mPORTAToggleBits( LED_MASK );
char tempArray[] = "g";
tempArray[0] = characterByteReceived;
WriteString(tempArray);
if(curr_state = HIBERNATE) {
addByteToBuffer(characterByteReceived);
}
else {
PutCharacter(characterByteReceived);
}
}
if(bufferIndex == 512) {
SDWriteBlock(currBlock);
currBlock++;
bufferIndex = 0;
}
if((curr_state == READY) && (timeElapsed >= SLEEP_TIMEOUT) && (timeElapsed < HIBERNATE_TIMEOUT)) {
curr_state = SLEEP;
}
else if((curr_state == SLEEP) && (timeElapsed >= HIBERNATE_TIMEOUT)) {
curr_state = HIBERNATE;
timeElapsed = 0;
}
if (transmitDataFromSDCard == 1) {
transmitDataFromSDCard = 0;
forwardDataToPrinter();
}
} // main (while) loop
return 0;
} // main
