topic Re: s32k3 eMIOS IMP Mode in S32K

s32k3 eMIOS IMP Mode

jfranklin — Mon, 30 Sep 2024 14:49:49 GMT

Hi,

I'm currently trying to read in an input signal frequency using eMIOS IPM mode on an s32k3 micro. After I wait for the Status register to tell me it's captured a measurement, I read the A register first, then the B register, and perform the period calculation for both cases (Normal case, and overflow case). However, the calculation instead gives me either the "High Time" or the "Low time", not the period of the signal. It appears that the IPM mode is giving me the high/low duty cycle instead of the period. Any thoughts to figure this out? I've confirmed the Control register is using the correct mode.

Thanks

Re: s32k3 eMIOS IMP Mode

VaneB — Mon, 30 Sep 2024 22:00:49 GMT

Hi @jfranklin

Are you using RTD controllers or custom software? Could you provide us with more information about your application?

BR, VaneB

Re: s32k3 eMIOS IMP Mode

jfranklin — Tue, 01 Oct 2024 14:05:36 GMT

Hi, it's our own software. Our goal is to not use the gui that's provided. Basically I'm just trying to read the period of a frequency input. It seems that even though IPM mode should only update on only rising or only falling edges, it seems to be updating on both rising and falling.

Re: s32k3 eMIOS IMP Mode

VaneB — Wed, 02 Oct 2024 17:32:28 GMT

Hi @jfranklin

If possible could you share your configurations?

Re: s32k3 eMIOS IMP Mode

gayancho — Sun, 11 Jan 2026 04:47:31 GMT

@VaneB Hi,
I'm also facing similar problems can you share the configuration like how i can configure the EMIOS for the measuring the frequency.