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TI F2812 SCI RX overflow, OE error, no RXFFOVF

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09-06-2006, 02:00 PM

chrislee

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TI F2812 SCI RX overflow, OE error, no RXFFOVF

Hi everyone,
I am having some problems with with my TI F2812 SCI. I get RX overflow
errors about half the times I start my program even though I reset
everything in initialization functions. It is after these
initialization functions the interrupt caused by the RXERROR is
generated.

What I find more puzzling is that only the OE bit in SCIRXST is set
while RXFFOVF in SCIFFRX is not. The RXFIFST bits in SCIFFRX are also
saying the buffer is empty. I have enhanced mode enabled and have the
RX FIFO causing an interrupt when it has 9 bytes. This works as it
should if my program does not give the overflow error at the start.

ideas??

thanks,
chris

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