Setting CLK_OSC32M_DIV to 0 results in runtime error

[urban_sharon]

Hi, 

I am trying to set the CLK_OSC32M_DIV bit of the System Clock Divider Register to 0, in order to use the original 32 MHz clock, undivided.

After importing from the "GPIO led output" SDK example project, I am trying to change this line: 

CLOCK_SetClkDiv(kCLOCK_DivOsc32mClk, 1U);

Into this line:

CLOCK_SetClkDiv(kCLOCK_DivOsc32mClk, 0U);

This results in a runtime error.

What could be going wrong here?

Thanks

[urban_sharon]

The issue now reproduces.

After using the clock configuration tool to generate the clock configuration block of the source code, and while tracing over it, a 'step over' action over this command:

CLOCK_SetClkDiv(kCLOCK_DivAhbClk, 0U);                  /*!< Set AHB_DIV divider to value 1 */

Results in this:

    __asm(  ".syntax unified\n"

[Sebastian_Del_Rio]

Hi Sharon,

Is the QN9080DK being debugged using the USB SWD/JTAG port? Or is it being debugged using the JTAG connector marked "P1"?

Best regards,

Sebastian

[urban_sharon]

Thanks Sebastián, I was able to resolve this by comparing the generated code of the broken project and another one that worked... I did manage to find a difference in the generated code and once I applied the change manually things started to work...

[Sebastian_Del_Rio]

Hi Sharon,

That's great to hear, please let us know if you need any further information or have further issues.

Best regards,

Sebastian

[Sebastian_Del_Rio · Accepted solution]

Hi Sharon, I hope you're doing well!

Unfortunately, I wasn't able to replicate the issue you're having.

I changed the call to the CLOCK_SetClkDiv inside of the BOARD_BootClockRUN function (which is called of main, in the gpio_led_output.c source file) to the following:

CLOCK_SetClkDiv(kCLOCK_DivOsc32mClk, 0U);‍

Could you please tell me where was this line changed? Or if any other changes were done to the code?

Best regards,

Sebastian

[urban_sharon]

Thank you all for the kind help.

I managed to resolve this by using the GUI code generator of the IDE for the clocks configuration. I am not sure what was to source of the issue, originally.

[urban_sharon]

I an using QN9080 DK

[Sabina_Bruce]

Hello Sharon,

Hope you are doing well.

Could you please tell us the microcontroller you are using so we can assign the correct engineer to help you?

Best Regards,

Sabina

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