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MSP-FET Problem

erik lee2
Genius 3060 points
Other Parts Discussed in Thread: MSP-FET

hi,

my MSP-FET can't successful burn code, and the red LED continous turn on,

check with user guide, it saids "An error has occurred; for example, target VCC over current. Unplug MSP-FET from target, and cycle the
power off and on. Check target connection, and reconnect MSP-FET." 

follow suggestion above, still can't fix this issue, is it HW crash so that can't be recovery?

  • 0
    Expert 1920 points
    Can you try connecting power from outside to your target, and connect VCC_TARGET instead of VCC_TOOL on the MSP-FET to the target MSP430's DVCC? The MSP-FET has a very low current capability (IIRC, around 100mA). Your target might be exceeding that.
  • 0 in reply to Anup Rajput
    Genius 3060 points

    Thanks for your reply, I follow your suggest, same malfunction.

    i think my MSP-FET crashed!

    Thank you.

  • 0 in reply to erik lee2
    Intellectual 365 points
    I have the same issue when I upgraded from IAR 6.40.1 to 6.40.2/3, which updated the firmware in the FET. No matter what I do it claims "the hardware might drain too much current from the debugger". Supplying power does not help, removing the power board interface does not work. Changing the voltage to various values does not help. If you do supply power, make sure you set the JTAG voltage to match.
    Reverting to previous FET firmware used in IAR 6.40.1 restored my FET functionality. The new FET firmware is broken.
  • 0 in reply to Wayne S
    Intellectual 365 points
    I have been discussing this issue in another thread: e2e.ti.com/.../1830057

    I found that when the FET started acting this way, I would have to reboot the computer. So could be a combination of new Firmware + Driver. I also find I have to let the debugger set the FET voltage first before actually connecting the JTAG to hardware. Let the first debug session fail with no connection, then the voltages are set up correctly in the FET and can now be connected to hardware. But once you get stuck with "pulling too much current" I have found I need to reboot the PC. Previous firmware/driver did not require this. Seems the TI FET firmware/driver is getting worse, not better.

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