Could someone provide a sanity check for me. I have an SPI slave module with an 8 bit word, 8 byte RX buffer, and an interrupt that triggers when the buffer is not empty. The interrupt toggles a flag which then executes :
if(SPIS_GetRxBufferSize() >7){ //wait until all 8 bytes of data have arrived
x.b[0] = SPIS_ReadRxData() ; //increment through the buffer
x.b[1] = SPIS_ReadRxData() ;
x.b[2] = SPIS_ReadRxData() ;
x.b[3] = SPIS_ReadRxData() ;
y.b[0] = SPIS_ReadRxData() ;
y.b[1] = SPIS_ReadRxData() ;
y.b[2] = SPIS_ReadRxData() ;
y.b[3] = SPIS_ReadRxData() ;
SPIS_ClearRxBuffer(); //clear the buffer for the next set of data
SPIS_ReadRxStatus();
}
The issue I have today is that when I repeatedly send 0x0a and 0x0b (to test) the first byte is correct but then the rest are '05' (hexadecimal printout) (and for the next buffer all are 05). If I repeatedly send just one byte (0x0a for example) all bytes in the buffer are '0A' .This makes no sense to me. Is the code above correct?
Thanks,
Evan
