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TMP9A00-EP-EVM: GUI and hardware connection error

Wyatt w
Prodigy 10 points
Part Number: TMP9A00-EP-EVM

Hi,

I am currently in the process of testing the TMP9A00-EP-EVM. I am using the GUI provided in the TI gallery -  https://dev.ti.com/gallery/info/THSApps/TMP9A00-EP-EVM. I need to be able to read from the GUI (ADC output) consistently over a long period of time. However when I start reading values within 30 seconds the output will freeze and I will get a "Hardware not Connected" error. The only solution so far has been unplugging and plugging the USB connection in again which will continue the GUI output where it left off, until it gives another "Hardware not Connected" error after another 30 seconds of runtime. I have tried both the web GUI from the TI cloud and offline installation of the GUI composer.

Is there any solution to this issue of the GUI stalling? The goal is to have a constantly running GUI with the EVM not to be touched once connected.

Thanks,

Wyatt

  • 0
    TI__Mastermind 39655 points

    Hi Wyatt,

    We commonly get complaints about our EVMs with I2C disconnecting due to I2C errors. I haven't seen a disconnect on this device, which doesn't use I2C. 

    Are you using the "As Fast as Possible" refresh rate? 

    Are you moving focus away from the application? The browser likes to save resources by pausing unused tabs. I would expect this to happen in the online version, but not the offline.

    To capture any errors that might be reported when the disconnect happens, press F12 to open the debugger. This will work in the online or offline versions. Navigate to the Console tab, paste the following and press enter.

     

    gc.console.setCookie("USB2ANY",5)

    You should start seeing all of the hardware activity printed in blue. 

    Please report back any error messages you encounter.

    Note that the following will disable the printing of debug messages.

    gc.console.setCookie("all", 0)

    thanks,

    ren

  • 0
    TI__Mastermind 39655 points

    Hi Wyatt,

    I've published v1.0.2 of TMP9A00-EP-EVM which might resolve buffer overrun issues with the USB transport. Give it a try and let me know if it fixes your issue.

    https://dev.ti.com/gallery/info/THSApps/TMP9A00-EP-EVM

    thanks,

    ren

  • 0 in reply to Ren Schackmann
    Prodigy 10 points

    Hi Ren,

    I've tried the v1.0.2 of TMP9A00-EP-EVM, it has fixed the issue. I can now use "As Fast as Possible"/ any other refresh rate without the "Hardware not Connected" error.

    Thank you!

    Wyatt