Custom board - ANNA-b112 no devices found

Question

Dear all, 
 
 I created a custom board with ublox module anna b112: 
 ANNA-B112 (open CPU) | u-blox 
 Based on nRF52832. 
 I tried to program it with the nrf52840 dk. 
 I connected to wires according to: 
 Programming/debugging external custom nRF52840 boards using nRF52840 DK - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com) 
 
 unfortunately, the VSCODE not detecting any device:

Any help or suggestions what to check would be appreciated!

Elfving · Accepted Answer

Great! 
 Then there could be something wrong with the wiring, soldering or dts for instance. 
 Mosh e said: and even flashing runs without errors. 
 Then I guess it also boots and provides logs? 
 Have you tried a peripheral example to see if you can connect to it using your phone? 
 Regards, 
 Elfving

Mosh e · Answer

Hi, 
 The problem has been solved. 
 I forgot to mention an important thing: I had not used an external 32 kHz crystal and had misconfigured the internal oscillator. 
 Thank you very much!

Custom board - ANNA-b112 no devices found

Top Replies