A secure bootloader for nRF9160 and nRF5340.
Plug a micro USB cable to nRF9160-DK or nRF5340-DK.
For other boards, connect UART pins as follows:
| nRF9160 | UART-to-USB adapter |
|---|---|
| P0.29 (TX) | RX |
| nRF5340 | UART-to-USB adapter |
|---|---|
| P0.20 (TX) | RX |
UART baud rate: 115200
Connect SWD pins as follows:
| nRF9160 or nRF5340 | Segger JLINK adapter |
|---|---|
| SWDIO | SWDIO |
| SWDCLK | SWCLK |
| Ground | Ground |
$ sudo apt install gcc-arm-linux-gnueabi
$ export CROSS_COMPILE=arm-linux-gnueabi-
$ git clone --recursive https://github.com/machdep/nrf-boot
$ cd nrf-boot
$ make clean all
$ make flash-nrf91
$ make flash-nrf53