Nrf52840 VDD and VDDH

[xiang san]

On my own board ,I just connect VDD and VDDH pin don't connect anything, Now my board can not use ble fuction,if I can confirm it's not the software issue, so is it possible the problem of  VDDH pin ? 

thanks 

[Jared]

Hi,

I'm not sure I understand 100%. It would be much better if you shared the schematic for your design!

regards

Jared 

[xiang san]

feeder_52840_v1.1.2.pdf

this is my schematic ,can you find something wrong ?

thanks

[Jared]

Hi,

VDD and VDDH should be tied together in Normal mode. You need to follow the reference design more closely.

regards

Jared