This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

  • Answer Suggested

Fatal Error: Could not find device.

Prodigy 50 points

Replies: 27

Views: 57452

I'm new to programming microcontrollers and could use some help.  I'm runing a Windows Vista Machine.  Installed the IAR Kickstart v 5.2.  I'm using the MSP-FET430UIF.  I have a custom board that I'm trying to program via JTAG/SBW.  When I hit the download and debug button, I get the following error message.

 Fatal error: Could not find device (or device not supported)   Session aborted!

Does that mean that I'm not communicating with my FET or does it mean that I'm not communicating with my target device?

  • The error indicates that the failure is with communicating to the target device. Your FET seems to be OK. Ensure that the LEDs light up as they should.

     

    As for the issue, is your MSP430 powered up? EIther that or the JTAG port pins aren't properly connected.

     

    Gustavo

    ---------------------------------------------------------------------------------------------------------
    Please click the Verify Answer button on this post if it answers your question.
    ---------------------------------------------------------------------------------------------------------

  • In reply to Gustavo L:

    Thanks Gustavo.  The LEDs on the FET are indicating that it's operating properly....  I checked and rechecked the connections to the PCB.  I had to make my own ribbon cable and I have continuity to all pins.  I'll go back and check them again.  I could have wired the board incorrectly.... but I don't think so.  I'm powering the PCB from the FET and there is no local power applied.

    Thanks again.

  • In reply to Scott Chainey:

    Scott.

     

    I would recommend using an external power that's not from the FET, at least to start. The FET has limits(If I remember correctly) on the current it can provide and that could cause trouble if your board needs a lot.

     

    Gustavo

    ---------------------------------------------------------------------------------------------------------
    Please click the Verify Answer button on this post if it answers your question.
    ---------------------------------------------------------------------------------------------------------

  • In reply to Gustavo L:

    Well, my little circuit doesn't draw much.  At least I didn't think so.... I did find out that the voltage on Pin 2 (Target Connector of the FET) which is Vcc starts at 3V.   After the device fails to load, the voltage on that pin is at GND and stays that way until I unplug the FET.  Maybe that means that my circuit is drawing more current than the FET can provide and is shutting down to self protect??  The only thing I have on the PCB are a couple of LEDs, and a Voltage Regulator.  Maybe the voltage regulator is causing the problem...

    Thanks Gustavo.  I will try to power the circuit with external power.  which means that I'll have to change my cable.  I believe that pin 2 supplies Vcc and pin 4 senses for external power.  I might could get by with just unplugging the power connection from the FET.

     

    -Scott

  • In reply to Scott Chainey:

    Hi Scott,

    I'm experiencing fairly similar issues.  I have yet to find any solution and was curious if you had resolved any of your issues?

    Thanks,

    Dustin

  • In reply to Dustin Lane:

    Hi Dustin, 

    I did finally find the problem.  I had a wiring problem with the cable I made.  I made a ribbon cable to go from the FET to my PCB.  The wiring diagram I used came from a ti  publication (SLAU138H) page 26.  It turns out that I should have read it a little closer.  Especially the Note C part.  I don't care about the fuse blow functionality, so I shouldn't have connected pin 8 from the FET to the PCB.  I should have connected to pin 7 directly.  After swiching the cable pin, it worked fine.

    I hope this helps.

    -Scott

     

  • In reply to Scott Chainey:

    Hi Scott,

    I encountered a similar problem.You say you shouldn't have connected pin 8 from the FET to the PCB.  you should have connected to pin 7 directly ,But the  chip on my test board is msp430f5438a,,and there are also ten LEDs,The pins on my board to connect the FET is as follows:

    1 TDO

    3 TDI

    5 TMS

    7 TCK

    9 GND

    11 RESET

    13 NC

    2 VCCIN

    4 VCCOUT

    6 NC

    8 TEST

    10 NC

    12 NC

    14 NC

    And the 2 VCCIN and 4 VCCOUT are connected together.this can not work,So I let 2VCCIN connect to the board power(is about 3.2v),and the 4pin(VCCOUT)connect to  nothing.but still can not work,download program.could you help me.

    Thank you

    Zhiwen

     

  • In reply to Scott Chainey:

    Hi Scott,

    Because the Chip is my own welding,and maybe the chip is burned out,how could I inspect it.

    Thanks again

    Zhiwen

  • In reply to zhiwen yao:

    Hi,

     I am also facing the similar kind of issue, while trying to program the microcontroller. i have already check the power supply(providing external power supply.) I am using TI's MSP-FET430UIF to program the device when connecing the device  its not detecing as port in device manager(hardware settings) and driver is also not installing fine.

    we have four JTAG device, facing trouble with all of them.

    can you  plz suggest some solutions.

     

    thanks

    Richa

     

  • In reply to zhiwen yao:

    Hello everyone,

    I have a similar problem.

    I want to program a board with an MSP430F5437, using 2-wire communication with the MSP430-FET430UIF. I saw the page 26 of the slau278.h -- connected the GND to pin 9, RST to pin 1 TEST to pin 7 and VCC to pin 4 (I'm powering the board from outside). Unfortunately it doesn't work. I get the message:

    Fatal error: Could not find device (or device not supported)   Session aborted!

    I tried to connect the RST to pin 11 but that didn't help either.

    I appreciate any help!

    Thanks,

    v.



This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.