Author Topic: Can't connect to NHDev via JTAG interface  (Read 1544 times)


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Can't connect to NHDev via JTAG interface
« on: June 28, 2018, 06:07:48 PM »
Hi there,

I am trying to access the programming interface on the NHDev board using an STMicro ST-LINK programmer.

I am aware of a note in a previous (2015) topic:
The Dev board code disables the JTAG after a second of power, so
when loading the code you must hold the board in reset and program
immediately after letting off the reset button.

OK, so I do this, trying various delays between lifting the reset button and clicking "connect" on the ST-LINK.  I cannot make it connect - it reports "No Target Detected", or "Internal command error" if I keep the reset button down for longer.

Also in the previous topic, you stated that you use the Keil ULINK programmer, but at over $300, that's not an option at this stage.

Has anyone had success with the ST-LINK? Or, has anyone had success with an alternative but affordable programmer?

Many thanks,


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