68300

Hello 68300 community,

hope anybody can help me solving following problem:

CPU: 68332 mask set G

Problem:
I have to use tpu channel 11 as an input. Unfortunately Mask set G doesn't
provide the DIO function. Because of the application it is not possible to 
trigger on the edge. I have to read out the state.

What I tried:
I tried to make it work with the PTA function. If the input is high, the channel 
counts up. I read out the LAST_TIME register to check if the channel
counts or not - I tried the same with the accum register-. But sometimes it
doesn't count even if it should. Probably a timing problem.
I'm not sure of the frequency of the two registers, because the result
is 32Bit. 

LAST_TIME (16Bit)  *-> Result 32Bit   ?!!

Or do you have any other ideas how to use the tpu channel as an input?

Freundliche Gruesse aus der kalten Schweiz

Ivo 

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Ivo Strebel
SCHILLER AG, Altgasse 68, CH-6341 Baar
Phone +41 41 766 42 42 / Fax +41 41 761 08 80
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