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  • nrf9160 feather cannot be detected with serial

Purchased nrf9160 feather from DigiKey: 3219-PASSY-NRF9160-FEATHER-ND. I am new to nrf devices.

Serial port shows up and AT commands can be run from the terminal, but it is not detected as an nrf device for programming. Even in bootloader mode (mode + rst button - solid blue light), I cannot load the compiled binary. Is there any more basic instructions to get past this point? I followed the instructions on https://docs.circuitdojo.com/nrf9160-getting-started.html

These are the boot up messages in regular mode (boot up and one mode button press):
[00:00:00.481,170] <inf> pcf85063a: pcf85063a@51 is initialized!
[00:00:00.490,081] <inf> lis2dh: fs=2, odr=0×1 lp_en=0×0 scale=9576
*** Booting Zephyr OS build v3.2.99-ncs1 ***
[00:00:00.501,373] <inf> battery: Setup AIN7 got 0
[00:00:00.506,652] <inf> battery: Battery setup: 0 1
[00:00:00.512,359] <inf> app: Test start!
[00:00:00.516,876] <inf> app: device is 0×314ec, name is pcf85063a@51
[00:00:00.525,909] <inf> littlefs: LittleFS version 2.5, disk version 2.0
[00:00:00.534,729] <inf> littlefs: FS at w25q32jv@0:0×0 is 1024 0×1000-byte blocks with 512 cycle
[00:00:00.544,372] <inf> littlefs: sizes: rd 16 ; pr 16 ; ca 64 ; la 32
[00:00:00.552,612] <inf> littlefs: /lfs mounted
[00:00:00.557,739] <inf> app: /lfs mount: 0
[00:00:00.563,262] <inf> app: /lfs: bsize = 16 ; frsize = 4096 ; blocks = 1024 ; bfree = 1022
[00:00:00.572,570] <inf> app: Set up button at sw0 pin 12
[00:00:00.584,442] <inf> battery: raw 7545 ~ 1657 mV => 3314 mV
[00:00:00.591,033] <inf> app: Battery: 3314 mV
[00:00:00.597,229] <inf> app: Accel reading: #1 @ 597 ms
[00:00:00.604,553] <inf> pcf85063a: mode 0×16
[00:00:02.034,149] <inf> app: Timer event valid! Uptime: 1430
[00:00:12.041,595] <inf> app: Button pressed at 394576

If I boot into bootloader mode, there are no UART messages.

Looks like your serial is working OK to me! There is not human readable output on the bootloader serial output. You need to use Circuit Dojo VSCode tools to load applications to your device. Otherwise seems like you’re on the right track.

    jaredwolff Thank you for the quick response… You are right seems I was mixing up the tools from nRF. This works.

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