# st-util

> Run GDB (GNU Debugger) server to interact with STM32 ARM Cortex microcontoller.

- Run GDB server on port 4500:

`st-util --listen_port {{4500}}`

- Connect to GDB server:

`(gdb) target extended-remote localhost:4500`

- Write firmware to device:

`(gdb) load {{firmware.elf}}`