Flashing firmware with OpenOCD without using telnet

Normally I use OpenOCD to flash firmware on my microcontrollers, but always use telnet to connect to openocd server in the port 4444.

Today I realized it is not necessary to use telnet to flash the firmware, I can do it from command line:

$ sudo openocd -f interface/stlink-v2.cfg -f target/stm32f1x.cfg -c init -c "reset halt" -c "flash write_image erase nuttx.bin 0x08000000"

I used this command to flash the nuttx.bin firmware on STM32F103 Minimum board. This is the “openocd_stm32f1.cfg” config file content:

# STM32F103Minimum Board

# Using stlink as SWD programmer
source [find interface/stlink-v2.cfg]

# SWD as transport
transport select hla_swd

# Use STM32F103C8 target
set WORKAREASIZE 0x4000
source [find target/stm32f103c8t6.cfg]
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2 thoughts on “Flashing firmware with OpenOCD without using telnet

  1. Great tip! I use the following command line to also reset and run the target, and exit openocd:
    $ sudo openocd -f openocd_stm32f1.cfg -c init -c “reset halt” -c “flash write_image erase nuttx.bin 0x08000000” -c “reset run” -c “exit”

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