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TMS320C6657: timer period in external clock mode

Yonggang Zhang
Prodigy 30 points
Part Number: TMS320C6657

Hello

I am using external clock mode in TMS320C6657 timer. The clock input on TINPL pin is 10K in frequency, and I would like to generate a timer event, such as TINT2L, in same frequency.  

In this case, how to setup the timer period? when I set PRDLO to 1, the TINT2L is generated in 5K frequency. While, when I set PRDLO to 0, no TINT2L timer interrupt is generated. 

How to create the same frequency interrupt as that on the TINPL input?  Thanks!

  • 0
    Prodigy 30 points

    I have solved this issue by setting the pin GPIO17_TIMI1 as normal GPIO, and using GPINT17 to trigger a 10K interrupt through CIC0.  In this way, I can get interrupts with10K frequency.

    By the way, It seems that the timer period can not be set to 0.