What happens if I set tval0 in lpit0 to 0? （S32K144 LPIT0）

[ym1]

hello everyone！

I use the compare mode of lpit0  and accidentally set tval0 to 0 in the program. I find that cval0 starts count from 0xFFFF_FFFF. Why?

Thanks.

[Robin_Shen]

Hi 永锋 季,

The Access of Current Timer Value CVAL is RO(read only). I don't know why you write 0 to it.

I am not sure if it was caused by below:

Best Regards,

Robin

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

[ym1]

Hi Robin_Shen，

Sorry, I want to say tval0. So my question is:

I use the compare mode of lpit0  and accidentally set tval0 to 0 in the program. I find that cval0 starts count from 0xFFFF_FFFF. Why?

[Robin_Shen · Accepted solution]

Hi 永锋 季,

00000000000000000000000000000000b - Invalid load value in compare mode
00000000000000000000000000000001b - Invalid load value in compare mode

Best Regards,

Robin

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

[ym1]

Thank you,Robin_Shen. I got it.

2020-05-21