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TIDM-ULTRASONIC-FLOW-TDC: Frequency Setting and GUI

Part Number: TIDM-ULTRASONIC-FLOW-TDC
Other Parts Discussed in Thread: TDC1000, TDC7200

Hello,

I am developing a gas flow meter using TI reference design:
http://www.ti.com/tool/TIDM-ULTRASONIC-FLOW-TDC.

I have two questions:

  1. TX Frequency setting:
    Only setting I have found on this board is TX Frequency Divider of 8MHz Clock in CONFIG0 register. I use a 218kHz narrow band transducer which requires fine frequency tuning. The EVM module http://www.ti.com/tool/tdc1000-tdc7200evm has an option to use MSP430 timer PWM output as TDC clock. Is similar option available on TIDM-ULTRASONIC-FLOW-TDC reference design?
  2. I use TDC_1000_7200_EVM GUI 1.2.7.1 and MSP FET Tool for communication with TI reference design board. The communication works properly in SETUP, TDC1000 and TDC7200 Tabs, but does not work in TOF_ONE_SHOT and GRAPH Tabs. The GUI gives a warning after connection: “Firmware Revision 1.27 detected. GUI needs Revision 2.01 or later.” I tried to update firmware in DEBUG Tab, but I did not succeed. I guess the update is possible only with EVM.
    Could you please advise how can I read TDC7200 Measurement Result Registers in TOF_ONE_SHOT and GRAPH Tabs?

Thank you,

Pavel

  • I suspect that this is not posted in the correct forum. Let me move it.
  • Hi Pavel,

    1. In the schematic on page 3 you can see the clock connections for the design. If you wish to use the MSP430 as your clock source, you can disable the Y1 oscillator, and populate resistor R63 with a 0 ohm to connect the MSP clock to the TDC1000 and TDC7200.

    2. Please try to run the MSP430 firmware update procedure using the .exe file in the MSP430 USB upgrade example folder installed with the GUI. It is located here by default: C:\Program Files (x86)\Texas Instruments\TDC1000_7200EVM\MSP430 USB Firmware Upgrade Example

    Regards,
  • Hi Scott,

    Thanks for your reply.

    1. I will try your suggestion. I will disable the Y1 oscillator and connect the MSP clock to TDC chips.

    2. I tried to run BSL_USB_GUI.exe for MSP430 firmware update. The result was similar to attempt updating the firmware in DEBUG Tab: The software did not find any connected device. I was searching internet for more info about MSP FET tool. I have found a schematics showing a Jumper J5: USB BSL activation. I opened the FET tool, closed J5 and plugged the FET tool to USB. The result was the same: “No device connected” message in firmware update software.
    I use computer with Windows 10 x64 Pro. I tried another computer with Windows 7 Pro 32-bit, result was the same.

    Thank you,

    Pavel