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can not communicate with target

TN.Richard
Intellectual 260 points

while debugging with CCSv4 a message in the console apears: "MSP430: Error connecting to the target: Could not find device (or device not supported)". I stopped the debug and restart it, but from now on I can not connect with the target.

Even acces with FlashPro is not possible. It seems to be a broken JTAG communication. This apears only on my computer (regardless of used IDE version, tried CCSv4 and CCSv5.0 and CCSv5.1M4), while my collegue can access the target (therefore, it is not a blown security fuse).

  • 0
    TI__Guru**** 171044 points

    Hi,

    You reported some issues with third party USB drivers in your other post. Did you fix these already?

    If so, then I suspect there are some leftover issues caused by the previous connect attempts. I would first try to clear the debug launch and the target cache files, and after that I would then try to clean or use a different workspace. Please check the sections General IDE and Debugger of the troubleshooting page below:

    http://processors.wiki.ti.com/index.php/Troubleshooting_CCS

    Hope this helps,

    Rafael

  • 0 in reply to desouza
    Intellectual 260 points

    I tried to clean eclipse, use a new workspace, deleted all cache files, but the problem still apears. I have the same problem, when I use another PC. Even reinstall of CCS does not help.

     

    The JTAG communication is broken in a way (not on hardware level, this is tested by my college, who can access my target).

  • 0 in reply to TN.Richard
    TI__Guru**** 171044 points

    Hi,

    I see you mentioned FlashPro, therefore I have a question: which emulator are you using? A TI MSP-FET430UIF or the one from Elprotronic?

    The reason of my question is that they don't mention their emulators support CCS (only the emulator FlashPro430 talks about CCE, an older version of Code Composer for MSP430 only).

    If you are using the FlashPro430, then I suggest contacting Elprotronic directly to assist you with the troubleshooting, as we don't have this emulator and therefore our help is very limited. 

    If you are using our emulator, I couldn't find a utility that performs low level testing on a MSP430 JTAG connection but its page in the TI wiki has a thorough troubleshooting that can help.  

    Hope this helps,

    Rafael

  • 0 in reply to desouza
    Intellectual 260 points

    Here new facts:

    I'm using CCSv5.1M4 (and several versions before) with the MSP-FET430UIF.

    The JTAG communication is broken after a memcpy call in my source code (wrong reading from address 0x30DC). After that I get the message mentioned above.

    Now using FlashPro with the Elpotronic flasher to test the security fuse. -> test fails (JTAG communication broken). Now disconnecting target from power and reconnecting it. Testing security fuse -> test passes (JTAG communication ok).  After erasing flash the target can be used as normal with CCS and MSP-FET430UIF.

    This is reproducable.