Kinetis Software Development KitのトピックRe: iRTC vs RTC

iRTC vs RTC

randyhermes — Tue, 07 Jul 2015 16:06:12 GMT

What is the difference between iRTC and RTC modules? Which API should I use with MK22FX512VLQ12?

Datasheet calls it an independent RTC, but module section is for RTC.

The SDK documentation mixes in iRTC functions in the RTC section.

I'm a bit confused.

ivadorazinova — Wed, 08 Jul 2015 13:32:39 GMT

Hello Randy,

it is a very good question.

According to Enabling the IRTC Module - AN4023.pdf it looks there are no huge differences.

However, please, give me short time to gather more details for you.

I will answer as soon as possible.

Best Regards,

Iva

randyhermes — Wed, 08 Jul 2015 15:11:19 GMT

Thank you Iva.

Appreciate the info. I'll look over the app note.

Randy

randyhermes — Wed, 08 Jul 2015 15:29:40 GMT

I believe I have found the answer.

Based on MKMxxZxxCxx5RM.pdf the IRTC has separate year, month, day, hour, minute and second counters. The RTC has a single 32 bit seconds counter.

The K22 processors have an RTC.

Randy