NRF5340 Programming issues

[XCJ]

Hi，

    I'm going to make a programming tool.I am using NRF5340DK to debug, I found that when writing client files, restart the device, only to use JFlash to erase. If keil is used to erase the device, the NRF5340 will run. Or the erase function is written to ram, and the chip runs normally during single-step debugging, but the chip will also run when run directly.

  I would like to ask if there is a flash programming demo for KEIL? Would you like to know whether JFlash turns off interrupt and watchdog when erasing? If so, please inform us how to turn them off?

Thank you

[Sigurd]

Hi!

We don't have any Keil support for the nRF5340 in our SDK.

To program the device, I suggest using nrfjprog command line tool, or if you want a GUI tool, use nRF Connect for Desktop programmer app. 

If you are doing production programming, we have a white paper on that here: https://infocenter.nordicsemi.com/topic/nan_042/APP/nan_production_programming/intro.html