I have recently learned some initialization mistakes that I have made
while programming a TMS470R1B1M and for all the new people who do not
have experience (like myself), I would like to share these. Not sure
if this applies to this group since it seems people here have a lot of
experience, but in any case:

1) Be careful to set the PCR register (defined in the System Module
manual) when initializing to make all of the peripherals active.
2) Be careful to initialize the I2C ports by using the I2CDIR and
I2CPDIR registers (defined in the I2C module manual). I did this
while only using the I2CDIR assuming that the ports would be
initialized, but found that the output pits have to be initialized
individually.
3) Be sure that the I2C ports use pull up resistors. There was only
one sentence in the manuals about this, but I did not read it and had
to add the resistors later.

If I come up across more info, or if anyone has questions about these
ports, I would be happy to help and give specific examples. I'm not
an expert and have not been playing with the micro for a long time,
but these are things that I am learning.

Regards,
Rudy