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NPanc.1
Associate II
Dec 9, 2020 6:25 AM UTC
Solved

Support for Custom PCB review

Hello ST Community,

I recently made PCB using STM32WB55CGU6 MCU. I used STM32WB-Dongle as reference and designed 4-layer PCB.

After board bring up and soldering I found that every peripherals of my board are working except Bluetooth.

I am using P2P-server application code and I see nothing on ST-ble mobile app.

Can anyone suggest how can I make Bluetooth working?

Thanks and Regards,

Nikunj Panchani

This topic has been closed for replies.
NPanc.1
NPanc.1Best answer
Associate II
Jan 7, 2021 10:42 AM UTC

After so many trials and errors, I found that the external LSE was stuck due to the supercapacitor.

After removing the component LSE went well and the hardware worked.

Regards,

Nikunj

1 reply

NPanc.1
NPanc.1AuthorBest answer
Associate II
Jan 7, 2021 10:42 AM UTC

After so many trials and errors, I found that the external LSE was stuck due to the supercapacitor.

After removing the component LSE went well and the hardware worked.

Regards,

Nikunj