this topic is delete

[nick yong]

this topic is delete

[Jared]

Hi,

Can you share your schematics and datasheet and full part number of the crystals that you're using?

regards

Jared 

[nick yong]

it looks just the same as DK.  

[Jared]

Hi,

I'm not able to access that URL, can you upload the datasheet and provide the full part number.

regards
Jared

[nick yong]

Hi,   Jared

    this is the wave from xtal . you can see the peak to peak value is 0.4v  

    I donnot know where this is ok. but the nrf52833 would always use internal xo.

    unfortunately, I cannot get the wave from nrf52833 DK.

    would you please tell me where the amplitude is ok. and is it necessary to improve the wave amplitude?

    thanks. a lot 

    I have another board with tcxo (use xc1 ), the peak to peak value is 0.8v.  the nrf52833 would always use internal xo too.

    

and what requirement is need to enable the external xtal for nrf52833.  thanks.

[Jared]

Hi,

I can not determine if the crystal is functioning based on that plot. 

I was not able to access the URL that you shared earlier, can you upload the datasheet of the crystal and the full part number of the crystal that you are using?

nick yong said:

but the nrf52833 would always use internal xo.

What do you mean?

regards

Jared 

[nick yong]

I mean when I try to enable external xtal by 

NRF_CLOCK->TASKS_HFCLKSTART=1;

but  

while (NRF_CLOCK->EVENTS_HFCLKSTARTED == 0);   //

cannot run out of this.

the datasheet is:

yxc_3225_4p.pdf

thanks for your help..

the xtal signal is like:

the voltage range from 0.3v to 0.7v

would it be ok?
would you please show the signal in DK?  I cannot get the xtal signal from DK.

thanks.

[Jared]

Hi,

Can you share the full part number of the crystal?

regards

Jared