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Visitor II
Feb 7, 2026 3:37 AM UTC
Question

bluenrg2 DTM_UART.hex can not running

I use DTM project,download to my board,but it is not running.I use my project it can running normal.How to solve it ,thanks

1 reply

Dominique FOLLEZOUR
ST Employee
Mar 3, 2026 5:09 PM UTC

Hello

Could you elaborate a bit more about setup:

Your own PCB is based on BlueNRG-2 chipset or BlueNRG-M2SP/SA  ?

If chipset what is your HW configuration : external 32Khz , RO ? SMPS ?

When flashing DTM you are then willing to connect yo board using BlueNRG GUI over UART ? and connection failed ? If so, the UART mapping on your PCB is same as DTM sample code ?

Thanks

Br

Dominique