topic Re: RTC capacitor settings bug? in MQX Software Solutions

RTC capacitor settings bug?

williamely — Wed, 21 Jan 2015 21:23:48 GMT

I've been looking through the MQX RTC driver and I can not see where it sets any SC bits in the RTC_CR register.

The RTC_SR register is not modified in Processor Expert either, no matter what I set the capacitance to.

The TWR-K64 board does not have the capacitors placed and the BSP does not change the RTC_CR register.

Is this a bug or am I missing something?

Re: RTC capacitor settings bug?

soledad — Fri, 23 Jan 2015 21:56:34 GMT

Hello William,

I suppose this is missing because it is a generic driver, I mean, it is the same driver for all the kinetis boards.

However you can modify this driver according your needs. The krtc.c file (C:\Freescale\Freescale_MQX_4_1\mqx\source\io\rtc) contains the (re)initializes/clears/enables RTC module functions so you can add that you need.

I will suggest this modification, thank you for your contribution.

Have a great day,
Sol

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Re: RTC capacitor settings bug?

williamely — Fri, 23 Jan 2015 23:51:14 GMT

Thanks Sol,

I figured it out. PEx takes care of it in CPU_Init.c.

Re: RTC capacitor settings bug?

soledad — Mon, 26 Jan 2015 01:05:17 GMT

Hello William,

Thank you for sharing your solution.

Regards

Sol