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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?

FredG
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user3583807
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  • You might want to ask the question in the official development forum here: https://forum.bitcraze.io/viewforum.php?f=6 – FredG Sep 03 '15 at 15:16

1 Answers1

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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/
Jeremy Caney
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Naval Kishore
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