Kinetis Microcontrollers中的主题 Re: FRDM-KL25Z RTC problem

FRDM-KL25Z RTC problem

anand-k — Wed, 20 Feb 2013 11:35:51 GMT

We are using FRDM-KL25Z evaluation board. I am using CW 10.3 with PE. I added a RTC component using PE. What I did is just kept RTC keep time counting on. My intension is to get the current RTC time at some instant. So I call the function RTC_GetTime(RTC1_DeviceData, rtc) which is suppose to return second, minute, hour, date, day, month, year values and stores into a rtc object. However, when I am running this code in debug mode(using OpenSDA USB), and at point where it executes the function RTC_GetTime(RTC1_DeviceData, rtc), the code stops at an unknown interrupt,

PE_ISR(Cpu_Interrupt)//code stops

{

/* This code can be changed using the CPU component property "Build Options / Unhandled int code" */

PE_DEBUGHALT();

}

I did automatic initialize rtc device, and called rtc_enable() function as well.

Can anyone provide a possible solution for this?

Thanks in advance.

Re: FRDM-KL25Z RTC problem

BlackNight — Wed, 20 Feb 2013 13:29:27 GMT

Hello,

by default, Processor Expert is creating one handler for all unassigned interrupts. I suggest that you use 'own handler for every' (see Oh my! An Interrupt&#8230; | MCU on Eclipse) so you know what is causing your interrupt.

Re: FRDM-KL25Z RTC problem

pradyumnakammar — Tue, 26 Mar 2013 04:18:26 GMT

Hi Anand,

were you able to solve your RTC problem?

i have encountered with a similar problem need to do what Erich told.

if you did solve your problem with RTC on FRDM-KL25 pls help me out

Re: FRDM-KL25Z RTC problem

anand-k — Tue, 26 Mar 2013 06:48:30 GMT

Hi,

The issue was with improper clock setting. I made correction to my system clock configuration(for my HW) and after that it worked fine well

Regards,

Anand

Re: FRDM-KL25Z RTC problem

pradyumnakammar — Tue, 26 Mar 2013 09:39:01 GMT

oh so with slow IRC its not possible to run RTC on FRDM -KL25?

Re: FRDM-KL25Z RTC problem

pradyumnakammar — Tue, 26 Mar 2013 09:48:49 GMT

could you give me more details on the clock settings?