STLink

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Revision as of 10:46, 2 April 2015 by NeoFromMatrix (talk | contribs) (Update the ST-Link to blackmagic probe)

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St-link.jpg


Every STM discovery / eval board comes with a ST-Link V2 on board, with one exception; the STM32VL version comes with a ST-Link V1.

SWD Header

Pinout with Apogee connector

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.

Two STLinkV2 Method

Hardware Setup: One STLinkV2 (connected via USB) is programming the other one. Change the 4 Solder jumpers on the bottom of the target STLinkV2 from "DEFAULT" to "REVERSED".
Connections between the two STLinks

Connections [Header-Pin]
Use From Programmer To Target
5V P2-5V P2-5V
SWDIO CN2-4 CN3-2
SWDCLK CN2-2 CN3-3
GND CN2-3 CN3-4

Download and build the Firmware

git clone https://github.com/blacksphere/blackmagic
cd blackmagic
git submodule init
git submodule update
make
cd src
make clean
make PROBE_HOST=stlink

Remove the readout protection, erase and flash

openocd -f interface/stlink-v2.cfg -f target/stm32f1x_stlink.cfg -c "init" -c "halt" -c "stm32f1x unlock 0" -c "shutdown"
st-flash erase
st-flash --reset write blackmagic.bin 0x8002000
st-flash write blackmagic_dfu.bin 0x8000000

Dokumentation

Black Magic Discovery from Esden <-- This also describes how to remove the read out protection.
embdev.net page