Content originally posted in LPCWare by cyberstudio on Wed Nov 17 11:24:30 MST 2010
In fact, the SSP interrupt is rather useless in my opinion. It waits 32 clocks, or a half full FIFO, before interrupting. You may poll some status register to know exactly if SSP is busy, whether the transmit and receive FIFOs are empty or full, etc.