Using SSP with interrupts and FIFO

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by JGold on Tue Jul 24 09:45:00 MST 2012
I have been trying to use the LCP1767 SSP port in SPI mode.  I can get it to work if I set the FIFO to 1 byte.  If I set it to more, it mostly works, but sometimes I don't get all my read bytes back.  Example, I'll send 20 bytes, and receive back only 19.

I am using linear buffers for the transmissions.

Does anyone have good working code using the FIFO and interrupts?