/*********************************************************************
* Function: void EEPROM_Read(uint8_t *dest, uint8_t addr, uint8_t count)
*
* Overview: Reads the EEPROM Starting from "addr" for "count" bytes and
* copies data to the address location "dest"
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
********************************************************************/
void EEPROM_Read(uint8_t *dest, uint8_t addr, uint8_t count)
{
uint8_t oldGIEH = INTCONbits.GIEH;
INTCONbits.GIEH = 0;
MAC_nCS = 0;
SPI1_Exchange8bit(SPI_READ); //MCC_SPI
SPI1_Exchange8bit(addr); // MCC_SPI
while( count )
{
*dest++ = SPI1_Exchange8bit(0x00); // MCC_SPI
count--;
}
MAC_nCS = 1;
INTCONbits.GIEH = oldGIEH;
}
uint8_t SPI1_Exchange8bitBuffer(uint8_t *dataIn, uint8_t bufLen, uint8_t *dataOut)
{
uint8_t bytesWritten = 0;
if(bufLen != 0)
{
if(dataIn != NULL)
{
while(bytesWritten < bufLen)
{
if(dataOut == NULL)
{
SPI1_Exchange8bit(dataIn[bytesWritten]);
}
else
{
dataOut[bytesWritten] = SPI1_Exchange8bit(dataIn[bytesWritten]);
}
bytesWritten++;
}
}
else
{
if(dataOut != NULL)
{
while(bytesWritten < bufLen )
{
dataOut[bytesWritten] = SPI1_Exchange8bit(DUMMY_DATA);
bytesWritten++;
}
}
}
}
return bytesWritten;
}
