hi
I have designed a small PCB with the NRF52 chip on it and kept few ports for some peripherals. Apart from that I only have 4 pins that I can connect to, UART-Tx, UART-Rx, Power and Gnd. I want to use UART for dumping code on the controller. Now I know that the code can be dumped on the controller using UART but I have never done that and I have very little experience with it. I also have the Blackmagic debugger which can be used as jTAG. I tried finding some useful resource which would help me get going but couldn't really find anything helpful.
I would really appreciate if someone can guide me with this or refer me to any resources online or on this forum which I might have missed, which might help me do the above task. Any tips or suggestion are appreciated as well.
I hope I explained my problem properly. Thanks
edit - It has pre-flashed bootloader on it. I just want to put my application code on it now through UART pins.