SDK12.2 nrf_delay_us 32MHz

[max]

Hi,

I use nrf51822 with HF XTAL Frequency of 32 MHz

I am migrating from SDK9 S110 to SDK 12.2 S130 and have a problem that the code stop on nrf_delay_us.

#ifndef CLOCK_ENABLED
#define CLOCK_ENABLED 1
#endif
#if  CLOCK_ENABLED
// <o> CLOCK_CONFIG_XTAL_FREQ  - HF XTAL Frequency
 
// <0=> Default (64 MHz) 
// <255=> Default (16 MHz) 
// <0=> 32 MHz 

#ifndef CLOCK_CONFIG_XTAL_FREQ
#define CLOCK_CONFIG_XTAL_FREQ 0
#endif

If i replace nrf_delay.h of sdk12.2 with rf_delay.h of sdk9 all working well.

i also try to set 32MHz with code:

 //Set the external high frequency clock source to 32 MHz
    NRF_CLOCK->XTALFREQ = 0xFFFFFF00;

    // Start the external high frequency crystal
    NRF_CLOCK->EVENTS_HFCLKSTARTED = 0;
    NRF_CLOCK->TASKS_HFCLKSTART = 1;

    // Wait for the external oscillator to start up
    while (NRF_CLOCK->EVENTS_HFCLKSTARTED == 0) {}

Why SDK 12.2 not working with nrf51 32MHz?

[Jørn]

What do you mean that your code stops at nrf_delay_us ? do you get any sort of error message?

[max]

Hi, it is stuck on nrf_delay_us() and not continue.

[Jørn]

What exactly do you mean it gets stuck? Do you mean it gets stuck in a loop somewhere? Could you debug and find out exactly what happens, and how it behaves?

[max]

Hi, It is not in loop,it is stops on "NOP" like in the image i provide..

[Jørn]

Have you tried running it with 16 MHz? Do you get any problems then? Also, could you try the solution as described in this link and see if that solves your problem? devzone.nordicsemi.com/.../