Crazyflie via swd st-link

Question

I try to flash crazyflie quadrocopter via swd. It is stm32f103 microcontroller on copter used. All goes as expected, but after ordinary burning chip stop to worked. Now i get followed output from st-link utility:

/opt/tools/stlink/st-flash --reset write ./output/mdr.bin 0x8000000
2014-12-27T12:53:47 INFO src/stlink-common.c: Loading device parameters....
2014-12-27T12:53:47 WARN src/stlink-common.c: unknown chip id! 0xe0042000
Press return ...

Google give me: https://github.com/texane/stlink/issues/107

Connect under reset and using bootloader don't give me success result both. After power on I get this voltages:

SWDIO =  1.36V 
SWCLK = 1.36V,
NRST = 2.7V.

Same voltage on SWDIO and SWCLK I have if I set NRST pin to GND. Is any idea what can help me?

Answer 1

Clone and build from official source:

https://github.com/stlink-org/stlink

Steps:

1. Make: Inside the stlink folder:

   cmake .
   make
   

2. Copy the stlink/bin files to:

   sudo cp st-* /usr/local/bin
   

3. Update the udev rules:

   sudo cp stlink/config/udev/rules.d/49-stlinkv* /etc/udev/rules.d/