S32 SDKのトピックRe: s32k oc_pal question

s32k oc_pal question

hyunyong1125 — Sun, 06 Sep 2020 14:35:27 GMT

Hello. I am a newbie who started using S32K for the first time.

While using the OC_pal function, there is something strange, so I write.

I want the timer interrupt to happen per second. So, I set Disable Output as shown in the picture below.

However, I am having a problem with DEV_ASSERT in the OC_InitFtm function.

If the function is OC_DISABLE_OUTPUT, it falls into an infinite loop.

Is there a problem with the SDK? Or maybe I shouldn't use the DISABLE_OUTPUT setting?

Re: s32k oc_pal question

Robin_Shen — Tue, 08 Sep 2020 02:10:33 GMT

Hi hyunyong1125,

There are only three types of Output Compare mode. Disable Output seems not included in Output Compare mode.

If you don't need pin output, LPTMR and LPIT module is more suitable than FTM.

Best Regards,
Robin

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

Re: s32k oc_pal question

hyunyong1125 — Tue, 08 Sep 2020 12:39:58 GMT

Hi Robin_Shen

Thank you so much for your clear answer.

Additional Question.

1. There are only 3 functions of output compare. Why are there 4 menus?

2. Do you have any documentation comparing the functions of FTM, LPIT, and LPTMR?

Re: s32k oc_pal question

Robin_Shen — Fri, 11 Sep 2020 03:11:53 GMT

1. There are only 3 functions of output compare. Why are there 4 menus?
A1: I will report it to internal team.

2. Do you have any documentation comparing the functions of FTM, LPIT, and LPTMR?
A2: I did not find such documentation, maybe you have to read the "Introduction" of each module in S32K1xx MCU Family - Reference Manual to compare the difference.