3 years, 5 months ago.

SWD ERROR on C027 when trying to flash it with a binary

I have flashed the C027 several times in the last days and everything works fine. But now I'm not able to falsh any binary on the device. Whenever I copy a binary file to the device, the device will shortly disappear and after this the C027 contains the error file "fail.txt" with the content: "SWD ERROR". Several seconds later the C027 disappears again from the explorer and the fail.txt contains now: "TIMEOUT". This last step will infinite repeated.

So far I have tried (unsuccessfully):

different USB Cables different Power Supplys Windows 7 and Windows 10 arbitrary binaries

How can I fix this issue? Why is this happening?

There are a lot of other guys out there you have similar problems. See for example:

https://developer.mbed.org/questions/6221/Urgent-SWD-error-on-mbed-u-blox-C027/

https://developer.mbed.org/questions/2249/Connecting-the-C027/

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