Firmware programmers

Segger J-Link twenty pin to ten pin adapter pin out, wiring diagram:

• https://www.segger.com/products/debug-probes/j-link/accessories/adapters/9-pin-cortex-m-adapter/

Segger J-Link and nRF9160 Feather programming instructions:

• https://docs.jaredwolff.com/nrf9160-programming-and-debugging.html

Segger programmer documentations:

Search following document for message "0001495 E Not supported by current CPU + target interface combination. [jlink]":

• https://www.digikey.co.uk/htmldatasheets/production/2755223/0/0/1/j-link-j-trace-user-guide.html

Full message is:

 0001495 E Not supported by current CPU + target interface combination. [jlink]":
 0001507 C Invalid error code: -2 [__main__]