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SPI read problem

tj2
Associate II
Posted on October 11, 2005 at 15:17

SPI read problem

10 REPLIES 10
ben239955_stm1_stmicro
Associate II
Posted on October 11, 2005 at 15:17

This problem may be related to one we are having with the SPI system, where if we try to read the Rx FIFO too fast we get bogus data.

Try waiting 8-10 clocks (count to 4 in tight loop for example) between the FIFO full flag being set and reading RXR.

If the read out value is then correct, congratulations, you have the same problem we do. We have no idea why it happens.

-Ben Edwards, Schneider Electric Raleigh[addsig]