How to upload firmware on Nordic nfr52840 pca10056 via UART

[mayank_patel]

I want to know the upgradation process of firmware (Zephyr OS) on nordic nrf52840_pca10056.

I have flashed the Zephyr OS on chip once via Jlink/JTAG, and now I want to flash it over UART from host processor.
How I should start the process? I have referred some threads of this forum but didn't able to figure out the starting process of flashing via UART.

Do I need to flash the bootloader first when flashing via UART or it is not need because I have already flashed zephyr OS via JTAG.

[Håkon Alseth]

Hi,

 

I'm sorry but nRF Connect SDK does not support nRF52840, only nRF9160. To use Zephyr samples on nRF52 series, please follow this guide. More information can be in this link, and as stated in the bottom of the page: "Also if you want to get involved with Zephyr, or simply need help as a user, you can join the Zephyr mailing list or join the #zephyrproject IRC channel."

Nordic Semiconductor is part of the Zephyr Project and contributes with misc. components/software, but we do not give support for Zephyr running on nRF52840.  

Thanks for your understanding.

 

Kind regards,

Håkon