MicroPython on the nrf9160

RE: MicroPython on the nrf9160

Andrea82 — Mon, 28 Aug 2023 20:03:07 GMT

Hi, I saw you used the micropython with the nRF9160. Did you use any IDe for developing the code? Like Thonny with the board connected directly so you are able to see in real-time what is going on? I am looking on online but I cannot find anything. I used micropython with an ESP32 and I'm wondering if it is the same.

RE: MicroPython on the nrf9160

Glenn Ruben Bakke — Thu, 16 Jul 2020 11:08:49 GMT

For micropython nrf9160 port the default setup is 115200 baud with flow control enabled. It might be a bit tricky to get flow control spinning out of the box. My solution is to ground one of the test points and hit a power cycle with the Reset button after opening up "/dev/ttyACM0" (or the first of the three ACM's you get in linux). What works best for me is to ground TP25 or TP27, depending on the version of the board. This is due to the fact that the wires between the Segger and nrf9160 is set up by the nrf52840, which is a bit slow to route the flow control signals (at least my suspicion). Hence, the UART Flow Control gets a bit stuck. Another alternative is to compile micropython with no flow control. However, that might lead to drop of characters when copy-pasting large code snippets into paste mode REPL.

RE: MicroPython on the nrf9160

Glenn Ruben Bakke — Thu, 16 Jul 2020 11:01:42 GMT

christianh, you can try out the PR that is available in micropython for some LTE/GNSS socket programming: nrf9160 socket support.

RE: MicroPython on the nrf9160

Tommy — Fri, 07 Feb 2020 12:58:37 GMT

Hi. How did you get the REPL? I have 3 serial ports and it doesn't show REPL on either of them. Tried different baud rates as well. On one of the serial ports i get : "NRF52840 board control statically configured. DK Uptime is 160 seconds" only...

RE: MicroPython on the nrf9160

christianh — Tue, 04 Feb 2020 15:07:52 GMT

Try these: https://cutit.org/RgRP1

RE: MicroPython on the nrf9160

Tommy — Mon, 13 Jan 2020 14:45:38 GMT

Yes please share the hex file 🙂

RE: MicroPython on the nrf9160

Tommy — Mon, 13 Jan 2020 12:30:01 GMT

Hi. I want to do the same. You did this on a Linux machine?

Did you find any solution for using LTE modem?

RE: MicroPython on the nrf9160

christianh — Tue, 15 Oct 2019 01:09:35 GMT

I basically followed the instructions from the MicroPython README, roughly this:

git clone https://github.com/micropython/micropython
cd micropython/
git submodule update --init
make -C mpy-cross

# make arm gcc available, was installed in a non-standard path
export PATH=$PATH:path/to/gcc-arm-none-eabi-7-2018-q2-update/bin

# compile to hex file
make BOARD=pca10090

# launch the Programmer App from the nrfconnect launcher
../nrfconnect320x8664.AppImage

# load hex file firmware.hex
# load hex file secureboot.hex
# click erase&write
# reset

# now connect to the REPL
screen /dev/ttyACM0 115200
>>> import sys
>>> print(sys.version)
3.4.0

Versions were d5cbee3cfb for MicroPython, v1.2.3 for the Programmer App, 7.3.1 20180622 for arm-none-eabi-gcc, all on Ubuntu 18.04.3 LTS with a stock 4.15.0-65-generic kernel.

Happy to share the hex if you want to give it a try.

RE: MicroPython on the nrf9160

hqtk — Mon, 14 Oct 2019 11:57:26 GMT

How did you flash the nrf91?
I keep getting an error stating that the nrfjprog is too old and the latest 10.4.0 doesn't want to install on my computer
Tried with both 10.2.1 and 10.3.0