Dear Sir,
I am trying to use SPI flash in DK-TM4C19X. I am using Ti-RTOS and its SPI driver. I was just trying to read the ID from the flash. Parts of of my code related to this as follows
//Initaialising SPI driver
Board_initSPI();
SPI_Handle masterSpi;
masterSpi = SPI_open(Board_SPI0, NULL);
if (masterSpi == NULL) {
System_abort("Error initializing SPI\n");
}
else {
System_printf("SPI initialized\n");
}
SSIFlashIDGet(masterSpi);
void
SSIFlashIDGet(SPI_Handle spi)
{
Bool transferOK=false;
UShort transmitBuffer[4];
UShort recieveBuffer[2];
transmitBuffer[0]=0x90;
transmitBuffer[1]=0x00;
transmitBuffer[2]=0x00;
transmitBuffer[3]=0x00;
spiTransaction.count = 4;
spiTransaction.txBuf =(Ptr) transmitBuffer;
spiTransaction.rxBuf =(Ptr) recieveBuffer;
transferOK==SPI_transfer(spi,&spiTransaction);
if (transferOK){
System_printf("Tranfer OK\n");
}else{
System_printf("Tranfer ERROR\n");
}
}
I am giving only part of my code as there so many other things in between.
In my function SSIFlashIDGet , The function 'SPI_transfer' always returns false.
Can you guide me in identifying the issue.?
Do you have any sample program for SPI flash using TI-RTOS drivers for DK-TM4C129X?
With regards
Suresh
Suresh
