STLink
Serial Wire Debug (SWD) is a program and debug protocol for ARM processors. It's a low pin count and high-performance alternative to JTAG
Every STM discovery board comes with a ST-Link V2 on board, with one exception; the STM32VL version, that board comes with ST-Link V1.
SWD Header
Install Software
The st-flash and st-util tools are needed, provied by texane
Download and compile
$ cd /opt $ git clone git://github.com/texane/stlink.git stlink $ cd stlink $ ./autogen.sh $ ./configure $ make
Set enviroment variable
$ exportline="PATH=$PATH:/opt/stlink" $ if grep -Fxq "$exportline" ~/.profile; then echo nothing to do ; else echo $exportline >> ~/.profile; fi $ source ~/.profile
Add udev rules
$ sudo cp /opt/stlink/49-stlinkv*.rules /etc/udev/rules.d $ sudo udevadm control --reload-rules
ST-LinkV1 requires a bit different treatment, read the Readme.txt
Airframe.xml setup
Connect the ST-Link to the MCU. If a complete STM32Fx-Discovery board is used, CN3 jumpers need to be set. To program a external MCU, remove CN3 jumpers and connect the external MCU with the SWD header.
To use SWD via STLink as default:
Set FLASH_MODE=STLINK
Update the ST-Link to blackmagic probe
The STM32F103 (STLink MCU) can be flashed with the blackmagic's firware.
This is irveversable !
How to upload the blackmagic probe firmware to the STLink of a discovery board