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Error Connecting to the target : Unknown Device MSP430G2131

Adam Selevan
Prodigy 130 points
Other Parts Discussed in Thread: MSP430G2131, MSP-FET

Hello,

I am having issues debugging my project on the MSP430G2131. My circuit board is configured to use 4-Wire JTAG and I am very confident that the circuitry is correct. I referenced the MSP430 wiki at the following link: processors.wiki.ti.com/.../JTAG_(MSP430). At this point, I am stuck and don't know how to get this working. I am using the MSP-FET Flash Emulation Tool. I have tried reducing the "C1" value of the RST pin to comply with the max 2.2 nF recommendation. I have tried providing power externally and via the programmer but still nothing works...

Is there something I am missing on the project settings?

Any help would be greatly appreciated.

Thanks, 

Adam

  • 0
    Guru 74080 points
    Adam,

    have you tried to connect to the device without the capacitor at RST?
    You could try if SBW works, just to see if a connection is possible in general.

    Otherwise your error message "Unknown Device MSP430G2131" looks like there is some connection...is your MSP-FET udated to the latest version?

    Dennis
  • 0
    Guru 92251 points

    Adam Selevan said:
    My circuit board is configured to use 4-Wire JTAG and I am very confident that the circuitry is correct.

    By default the MSP-FET tries to auto-detect using either a JTAG or Spy-By-Wire connection to the device. The thread MSP430 not programming from CCS6 but can programm from CCS5 mentions a problem where with the default auto-detect connection method, CCS 6 was failing to program a device connected with 4-Wire JTAG.

    The solution was to modify the msp430_emu.xml file in the CCS 6 installation to expose a GUI option to control the connection method used by the MSP-FET, and selecting "2 wire devices accessed by 4wire JTAG protocol" then allowed the device to be programmed. See Forcing SBW mode for detail of how to modify the msp430_emu.xml file.

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