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TMP117EVM: TMP117 GUI confusion

Part Number: TMP117EVM
Other Parts Discussed in Thread: TMP117, MSP-EXP430F5529LP,

Hello Everyone,

I recently downloaded the TMP117 GUI desktop app to debug and verify our new RTD designs using the new TMP117 family. We are using the WSON and SDBGA packagesof the said chip. Using the TMP117EMV board and our two chips placed on flexible films, we're having difficulties making connections to one of  the RTD's we designed.

1st RTD = TMP117 WSON-2x3 Package with the adress pin (I2C slave adress) set to 0x48 and seems to work fine and were able to be detected by the TMP117 GUI Ver. 1.1.2

2nd RTD = TMP117 SDBGA-6 Package with the address pin  set to 0x49, is unable to be detected by the GUI and I can't seem to change the address of the I2C configuration on the GUI (the drop down box is disabled). I found out that the TMP117 GUI Ver. 1.2.1 does allow you to change the address bit from 0x48 to 0x49 BUT it can't seem to find any of my USB serial ports and thus the EVM itself.

Does anybody have any ideas? In case anyone asks, I've updated the firmware on the TMP117EVM already using that launchpad MSP-EXP430F5529LP successfully, but still unable to change the TMP117's slave address on the GUI on Ver. 1.1.2 and are able to change it on Ver. 1.2.1 but won't detect my serial ports.

Any help is appreciated.

/Chester

  • Hi Chester,

    We produced a GUI which reads from four TMP117 devices attached to the same USB to I2C bridge. You can find it here:

    https://dev.ti.com/gallery/search/tmp117

    There's currently a bug that prevents us from running two instances of the GUI with two instances of the USB EVM on the same PC. That may be why you're seeing disconnect problems. The GUI Composer platform is also set-up to check for a response from the TMP117 device, and if it gets no ACK from the I2C Address, it will disconnect from USB. Make sure the I2C Address is configured correctly before clicking the connect button. 

    The TMP117EVM should have shipped pre-loaded with the correct firmware. You should not need to flash it unless you have corrupted the firmware by some other means. When it is connected to your PC, it will enumerate as a HID device with VID 2047 and PID 0301. If you can't find this device in your Windows Device Manager (or similar) then you have damaged the EVM or corrupted the firmware in some way. 

    Thanks,

    ren

  • Hi Ren,

    I figured out the problem to be my computer not signing off on non-digitally signed drivers. I used a computer that's unrestricted by our IT dept. and the two sensor IC's are working now.

    We would definitely try out running the two sensors side by side using the GUI version that you have suggested.

    Thanks,

    Ches

  • Since our device presents itself as HID, there isn't a custom driver associated with it. We don't provide a Windows driver (signed or unsigned.) 

    Regardless, I'm happy to hear you resolved your problem, and that the quad GUI will be of use to you.

    Thanks,

    Ren