Sep 24, 2021
08:05 AM
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Sep 24, 2021
08:05 AM
Hello,
I just bought a MiniWiggler v2 but having some challenges of establishing connection with TC277. After we power up the device and connect all the DAP lines to PC through MiniWiggler, the DAS basic client shows that the status of the connection is continuously switching between “no device connected”, “Device has no ID register” and “TriCore Family” in an infinite loop.

I am using the 10 pin dap connector on the miniwiggler and the wiring is showed in the picture below:

Another thing I notice is when I connect the miniwiggler to the computer, it will list under USB section in device manager instead of COM port. Is this the reason of no connection? And I did update the drivers already.

Please let me know what could be the reason of this issue and how can I have a stable connection.
I just bought a MiniWiggler v2 but having some challenges of establishing connection with TC277. After we power up the device and connect all the DAP lines to PC through MiniWiggler, the DAS basic client shows that the status of the connection is continuously switching between “no device connected”, “Device has no ID register” and “TriCore Family” in an infinite loop.
I am using the 10 pin dap connector on the miniwiggler and the wiring is showed in the picture below:
Another thing I notice is when I connect the miniwiggler to the computer, it will list under USB section in device manager instead of COM port. Is this the reason of no connection? And I did update the drivers already.
Please let me know what could be the reason of this issue and how can I have a stable connection.
1 Reply
Sep 25, 2021
06:35 AM
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Sep 25, 2021
06:35 AM
Pin 1 of the DAP connector needs be connected to VDDP3 (3.3V). This acts as the reference voltage for the DAP voltage levels.
Question for you is VDDOSC_1 at 1.3V or 3.3V?
Question for you is VDDOSC_1 at 1.3V or 3.3V?
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