问题
I am currently using the ST-Link debugger to program my STM32F3 Discovery Board. The IDE that I am using is Atollic TrueStudio 5.5.2 but now I am facing a very weird problem which is I keep on getting the message " Error in initializing ST-Link Device. Reason : (-1) Failed to connect to device . Please check power and cabling to target." whenever I want to download the program into my STM32. I had tried some solutions that I found from internet but the problem still exists. Anyone had faced this problems before? Any suggestions will help. Thank you.
Here is the solution I found but can't work for me. http://www.kerrywong.com/2012/08/02/the-dreaded-cannot-connect-to-st-link-error-message/
回答1:
You could try the following.
Make sure that you have installed the right version of the driver (32 or 64 bits).
If you are using an external ST-Link, make sure that you connect VCC, GND, RESET, SWDIO and SWDCLK.
If you are using an external ST-Link, make sure that Atollic is using the right one. You may have 2 ST-link connected (the external and the embedded one).
Ensure that the ST-Link is setup in SWD mode and not in JTAG.
In Atollic, you could also change how the ST-Link connects to your target. Try different combinations, for example Connect under hardware reset.
回答2:
I had same situation on Ubuntu. I solved this, using STM32CubeProgrammer.
On the ST-LINK configuration area:
- Serial number -> refresh to get your stlink serial
- Mode: Under reset
- Reset mode: Core reset
try to connect asap when power your board. When you connect you can do "full chip erease". It suppose to be ready for next usage. I hope it helps
回答3:
In the debugger tab, make sure to select SWD, not JTAG.
来源：https://stackoverflow.com/questions/38092674/error-in-initializing-st-link-device