Hello Guys,
We've our own board with STM32H743BIT6 mcu Integrated. We've tried to dump the code by using the external ST-LINK V3 Debugger with JTAG Interface. It works fine for first 3 - 4 times. But then after reaching the board for the 5th time we're getting the Err message as "Error: ST-link error (DEV_TARGET_HELD_UNDER_RESET)".
Tried Methods:
1. We've Pressed the reset button for 2-3 seconds after giving the connection request.
2. We had set the Mode as Under Reset and Hot Plug mode
3. We've tried with STM32CubeIde also, still not working.
Note:
JTAG NRST pin in ST-LINK V3 Debugger is held at Logic Low, without connection to the target. Is this ok?
Suggest us some Solutions to overcome this state!
If anyone has the ST-LINK V3 Schematics send us.
