This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

SPI 1 collision 2129

SPI0 works flawlessly, when i try to implement SPI1 as soon as i write the first data to the PDR the status register flags an write collision. I have first thought it has something to do with the SSP, but from the debugger it is completely disabled and SPI1 is setup correctly.

Example setup:

//setup SPI1 ports
PINSEL1 = 0x000002A8;

//configure SPI1
S1SPCCR = 10;
S1SPCR = 0x00000024;

IOSET0 = 0x00000020;
IOSET0 = 0x00000040;

Example Run:


//check
if(S1SPSR & 0x00000080){
  k = S1SPDR;
  k = S1SPSR;
}else if(S1SPSR == 0x00000000){
  //Transmit data
  S1SPDR = 0xAA;
}

Anyone have any insights?