832 without radio xtal question

[William.wei]

hi support team,

customer are asking one question about using external 32 MHz crystal, if customer not using radio,  only take 832 as MCU, is it possible to using 26 M crystal instead of 32 M?

as i searched the spec, only 32 M as below, but i guess it is for radio:

 

so is this the only option for customer? 

Regards,

William.

[Vidar Berg]

Hi William,

The system is designed for a 32 Mhz crystal only, so 26 MHz is not an option. However, maybe they won't need the crystal oscillator if they are not going to use the RADIO?

Regards,

Vidar

[William.wei]

Thanks Berg，

may i ask if this is hardware related or software related, or both?

Yes i understand this, but the customer is not prepare to using radio(and video), but still need high accuracy pulse,which needs XTAL crystal.

from SDK config, all the parameter is calculated by 32 M, if we can calibrate the pulse to 26 M accordingly?

of course, if this is hardware problem, i think there is no answer to this question.

[Vidar Berg]

This limitation is related to the HW. So in this case will have to mount a 32M crystal I'm afraid.