“NRF54L15 can be programmed, but the GPIO is not working.”

[Nam]

I designed a circuit using the NRF54L15 to connect via Bluetooth and control several peripherals. I program the chip using the Debug Out of the NRF54L15 DK Development Kitblinky_2.rar. The code can be flashed successfully, but the GPIO is not working. What couldBLE.SchDoc be the reason?

[JONATHAN LL]

Hi,

Schematic looks mostly ok, but a few comments. 


The nRESET line should have a shunt cap and a series resistor, you are missing this in the current design. 


Have you only tested 1 custom board? 

How many have you made? 

Can you share the layout files? 


This could be a soldering issue. 


Also I recommend that you test with other example code as well. Have you tested any Bluetooth samples or some simple radio test sample?

Can you read the device memory with nRFjprog or nRFUtil commands? 

Regards,
Jonathan