Help on McBSP on 5409 a

Started by phil black July 15, 2002
I have a problem thats making me nuts.
I have McBSP2 set to Clockstop mode (As a SPI MASTER)
to talk to a Ramtrom serial Ram. I can clock data out
to it ( Waveforms on the scope look perfect ).

I have a very simple routine to read the port, just
polling the RRDY line and moving the data into an
array. All signals again look perfect on the scope
CLK, CS, SI, SO all meet timing requirements. I can
see the data out of the ram is exactly what I clock
into it. The McBSP just is not reading it. Unless I
put a breakpoint