uint8_t fsmanMountSD(uint8_t * result_code){
uint8_t ret=0;
MEDIA_INFORMATION *mediainfo = MDD_MediaInitialize();
if(mediainfo->errorCode != MEDIA_NO_ERROR){
__debug("MDD media init failed");
}
if(MDD_MediaDetect() == 0){
__debug("MDD media detect failed");
return 0;
}
if(FSInit() == 0){
__debug("FSInit failed");
return 0;
}
return 1;
}
int main(void)
{
// Watchdog Timer Enabled/disabled by user software
// (LPRC can be disabled by clearing SWDTEN bit in RCON registe
// Configure Oscillator to operate the device at 40Mhz
// Fosc= Fin*M/(N1*N2), Fcy=Fosc/2
// Fosc= 8M*40/(2*2)=80Mhz for 8M input clock
PLLFBD = 38; // M=40
CLKDIVbits.PLLPOST = 0; // N1=2
CLKDIVbits.PLLPRE = 0; // N2=2
OSCTUN = 0; // Tune FRC oscillator, if FRC is used
RCONbits.SWDTEN = 0; /* Disable Watch Dog Timer*/
// Clock switch to incorporate PLL
__builtin_write_OSCCONH(0x03); // Initiate Clock Switch to Primary
// Oscillator with PLL (NOSC=0b011)
__builtin_write_OSCCONL(0x01); // Start clock switching
while (OSCCONbits.COSC != 0b011); // Wait for Clock switch to occur
while (OSCCONbits.LOCK != 1) {
}; /* Wait for PLL to lock*/
// bufferPointer = NULL;
Uart2Init(InterruptRoutine);
if (!CB_Init(&circBuf, cbData, CB_SIZE)) FATAL_ERROR();
// Generate a fake input to record to the circular buffer
// give beginning and end special characters
unsigned char goodData[512];
int i;
for (i=0; i<512; i++) {
goodData[i] = (char)i;
}
goodSum = checksum(goodData, 512);
Uart2PrintStr("Begin.\n");
file = NewSDInit("newfile.txt");
int SDConnected = 0;
while(1)
{
// if (bufferPointer != NULL) { TODO implement this?
// CB_WriteMany(&circBuf, bufferPointer, UART2_BUFFER_SIZE, 1); // the 1 is arbitrary
// bufferPointer = NULL;
// }
if (SD_IN)
{
// if the board was just plugged in try to reinitialize
if(!SDConnected) {
MEDIA_INFORMATION * Minfo;
do {
Minfo = MDD_MediaInitialize();
} while(Minfo->errorCode == MEDIA_CANNOT_INITIALIZE);
SDConnected = 1;
}
// When we are connected and initialized, poll the buffer, if there
// is data, write it.
unsigned char outData[SD_SECTOR_SIZE];
if (CB_PeekMany(&circBuf, outData, SD_SECTOR_SIZE)){
if(NewSDWriteSector(file, outData)){
// Remove the data we just written.
if(checksum(outData, 512) != goodSum) {
FATAL_ERROR();
}
CB_Remove(&circBuf, SD_SECTOR_SIZE);
}
}
} else {
SDConnected = 0;
}
}
}
