Hello,
My project requires I use a arduino sketch to program a custom board (NRF52840 based). I am using a J-link mini edu to program the board to test on my NRF52840DK board. I have tried "Uploading using programmer" for a simple blinky program and didn't work.
I suspect I need some custom firmware to manage device drivers?
I've browsed GitHub - adafruit/Adafruit_nRF52_Bootloader: USB-enabled bootloaders for the nRF52 BLE SoC chips but these are only USB options. There is a read only protection, so I cannot upload my application via SWD after I burn bootloader.
I also have a tool that allows me to write to flash memory, I uploaded both my bootloader (worked) and application (didnt work). I suspect there is a fuse issue but I don't know much about it. Please comment on things I need to clarify and try.
Image above shows the NRF connect programmer recognizing the individual sections, like softdevice,application and bootloader.
These are the fuses for the NRF52840, please someone help this make sense lmao.
Thank you!
-Calvin