NUCLEO_F152RE

NUCLEO_64

Flash

Using openocd

openocd -s /data/zephyrproject/zephyr/boards/st/nucleo_l152re/support -s /data/.local/zephyr-sdk-0.16.8/sysroots/x86_64-pokysdk-linux/usr/share/openocd/scripts -f /data/zephyrproject/zephyr/boards/st/nucleo_l152re/support/openocd.cfg '-c init' '-c targets' -c 'reset init' -c 'flash write_image erase <firmware.hex>' -c 'reset run' -c shutdown

Using st-flash

st-flash write <firmware.bin> 0x8000000

Debug

1. debug server

openocd -s /data/zephyrproject/zephyr/boards/st/nucleo_l152re/support -s /data/.local/zephyr-sdk-0.16.8/sysroots/x86_64-pokysdk-linux/usr/share/openocd/scripts -f /data/zephyrproject/zephyr/boards/st/nucleo_l152re/support/openocd.cfg -c 'tcl_port 6333' -c 'telnet_port 4444' -c 'gdb_port 3333' '-c init' '-c targets' '-c halt'

2. gdb

arm-none-eabi-gdb -ex 'target extended-remote :3333' <firmware.elf> -ex load

J-Tag

Segger Wiki

Q&A

1. How to solve flash failed and st-flash Failed to enter SWD mode ?

According to blog

st-flash --connect-under-reset erase

check SWD mode

st-info --probe

if something like this is output

Found 1 stlink programmers
  version:    V2J33S25
  serial:     0670FF485370514867084652
  flash:      524288 (pagesize: 256)
  sram:       81920
  chipid:     0x437
  dev-type:   STM32L1xx_Cat_5

The device is successfully erased, NOW you can flash your new firmware