Hi,
I am working on a project with 2 nrf52840 devices. One is the nrf52840 dk, while the other is a custom board with the nrf52840 module. I want to perform a dfu over uart to the custom board, however, the com port has no direct connection to the pc. I am currently connecting it to the nrf52840 DK via UART TX and RX pins. I would prefer to do the dfu without flow control, thus why I have not connected these pins. I have set the baud rate to 9600 and followed the answer given here. I was given the following error:
I have no idea as to why this is happening. The COM port is correct and I can program the bootloader on to both devices. This only occurs if I want to perform a dfu over UART. Any advice on where I should go from here, would be greatly appreciated!