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Original question:

USB-TO-GPIO2: USB-TO-GPIO2 2022 does not work

USB-TO-GPIO2: USB-TO-GPIO2

Matthew Strickland
Prodigy 40 points
Part Number: USB-TO-GPIO2


I purchased the TI USB-to-GPIO2 for development and eventually production on a new program. I just installed the fusion GUI, the version can be seen below as Version 7.10.1 [2023-10-27]. 

I wanted to use this as a general purpose input/output monitor but having trouble connecting. 

I am seeing other forum topics having the same issue. Is the USB-to-GPIO2 supported by Fusion in the latest release?

Thanks,
Matt

  • 0
    Prodigy 40 points

    I would like to find some sort of documentation explaining how to use Fusion as a generic GPIO interface. Nothing is connected to I2C/SMBus. Hoping to choose correct target, configure/write outputs and read inputs. 

  • 0 in reply to Matthew Strickland
    TI__Genius 9500 points

    Hi, Matt,

    From the screen shot, all the ALERT, Clock, and DATA lines are set to "Open-Drain". Most of TI's EVM boards requires a 2.2 kΩ pullup (see the warning highlight in yellow). If you use TI devices, change the pullup to "2.2 kΩ" for all, then change the "Device Scanning Options" to "DEVICE_ID/DEVICE_CODE/IC_DEVICE_ID to query for all devices supported by Fusion GUI. From the screenshot, your "Device Scan Mode" is currently set to use only DEVICE_ID which can only detect UCD90XX/UCD92XX devices.

    Regards

    Anne Ngo

    Texas Instruments

  • 0 in reply to Anne Ngo77
    Prodigy 40 points

    Hi Anne, 

    Thanks for the response. I've updated my settings to include a 2.2K pull up, and updated the scanning options as you have specified. How can I proceed to configure/read/write the GPIO's? Is there any literature on this?

    Thanks,

    Matt

  • 0 in reply to Matthew Strickland
    TI__Genius 9500 points

    Hi, Matthew,

    Launch Fusion GUI -> Tools -> UCD90XX Device GUI -> SMBus Debug tool. There are section for GPIO read/write

    Regards

    Anne Ngo

    Texas Instruments