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BP-DAC11001EVM: Software cannot talk to eval board

Justin Scott
Intellectual 545 points

Part Number: BP-DAC11001EVM
Other Parts Discussed in Thread: MSP-EXP432E401Y

I am trying to use the BP-DAC11001EVM software to control the board. It is connected to an MSP-EXP432E401Y as shown in the users guide. I was able to load the firmware as described in the setup guide. I was also able to get the software to connect to one of the 2 serial ports that appear when I plug in the USB cable (the software will not connect to the other port). It appears to be connected at 9600 bpm. 

I am powering VCC with +15V, VSS with -15V, and Ref pwr/gnd with 5V. I have nothing connected to VIO or VDD; I believe these are powered by the MSP430 board. The jumpers are left in their default positions. During the firmware programming, I removed JP6 on the MSP430 board and put it on the middle column of JP1 as instructed. I have left this in place (I can't connect to either serial port otherwise).

When I go to the "dac quick start" section of the software and select any of the drop down options, or try to change the dac output, the fields simply reset to their original value (blank in most cases). My guess is the software is connected to the serial port, but not actually receiving messages from the device.

What do I do? I am using Windows 10; does this software work on Win 10?

  • 0
    TI__Genius 14220 points

    Hi Justin,

    Thanks for reaching out. We have some update issues with the runtime engine at the moment. Hence, we have provided a patch temporarily until the runtime update is done. You can go to the EVM software download directory. After unzipping, go to BP-DAC11001EVM_1.0.0_installer_win\BP-DAC11001EVM\app\patch and follow the README file to fix the runtime software.

    I hope that should solve your problem. Let me know if you are still facing any issues.

    Regards,

    Uttam Sahu

    Applications Engineer, Precision DAC

  • 0 in reply to Uttam Sahu
    Intellectual 545 points

    Thanks, Uttam. I followed your instructions and now the board appears to be connected: when I change the settings in the "dac quick start," they are retained and do not reset to their previous values. When I change the value in the DAC output field however, the voltage I measure at J3 does not change. My setup is as described in my first message. I have tried values from 0 to 1048575 (2^20 - 1) but the output voltage I measure stays at -4.5 mV.

  • 0 in reply to Justin Scott
    Intellectual 545 points

    I figured it out. Even if you have the jumpers set to supply DVDD from the eval board, you still have to supply VDD so that AVDD1 and AVDD2 get powered. The documentation for this board could really use some improvement. Also the board itself could be improved: there are no labels telling you where the positions are for the jumpers, and none of the SMA jacks are labeled.