MSPM0L2228: RTC_OUTPUT - 1Hz calibration output

Luke

Part Number: MSPM0L2228

Tool/software:

Hi team,

I am running thru some basic testing. One of the outputs I am looking to check is the RTC_OUTPUT on PA27.

I would like it to generate a 1Hz calibration output.

Even though the RTC pin mux is set in syscfg to output on PA27, there is no signal and I don’t see any code for this output generated.

Here is the driverlib code generated for the RTC

According to the user’s guide, I can set the CAL register RTCCALFX to 0x03 for 1Hz.

But I could not find the driverlib function to set that.

Below is the syscfg…

Can you help me with the code to set this output?

Thanks,

Luke

+1 Matthew Komitsky 2 months ago

Hi Luke,

This is a syscfg issue that we will address. In the meantime --> the following code can be run to get the clock running.

RTC_A->CLKCTL = 0x80000000;

This will enable the MODCLKEN bit thus connecting the 32KHz clock to the RTC

-Matthew

0 Luke 2 months ago in reply to Matthew Komitsky

Hi Matthew,

Thanks for the quick response! We'll use this workaround for now but looking forward to hearing more on an actual fix!

Best,

Luke

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