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TDC1000-7200

fuller levi
Prodigy 140 points
Other Parts Discussed in Thread: TDC7200, TDC1000

Hello

I'm trying to get Fluid Level from TDC1000-TDC7000 EVM. Everything worked fine till yesterday I was getting near precise values for fluid level. But from yesterday, I'm getting values intermittently. Even loading config file is taking long time. Here are things I tried:

1. Tried upgrading firmware from GUI and it's successful but the problem isn't resolved. What do you think, could be the problem?

2. Changed #Excitation Pulses, Gain,

3. When "Continuous Trigger" isn't triggered, I've manually tried turning the knob on.

What do you think, could be the problem? , can you help me out with this?

Levi

  • 0
    TI__Mastermind 21685 points
    Levi,
    Please check from "Debug Tab" if communication to the board is fully working. Check if you are able to toggle the LINK LED on the board from the GUI. Are you able to correctly read the firmware revision? Are you able to change a register value and read it back correctly?
    Also, may be some windows update is causing issue and PC might need a reboot. Check all the supply voltages at the headers are right.
    Thanks,
    Vishy
  • 0 in reply to Vishy Viswanathan
    Prodigy 140 points

    Vishay, 

    Thanks for the swift response. I've followed your recommendation and here are my observations:

    1. I can communicate with the board and read firmware.

    2. Can blink LINK LED(Can see the change on Hardware)

    3. Can write to register and read the same value back.

    4. I've restarted the PC several times.The position of headers:

    a. JP1(TDC7200) - Connected

    b. JP2(CPU) - Connected

    c. JP3(TDC1000) - Connected

    d. JP4(VIO) - Connected

    e. JP5(TRIG) - Connected Towards 7200

    f. JP6(CLOCK) - OSC is Connected

     

    This is the snapshot of TOF Graph screen.

     

    Am I missing something else?

  • 0 in reply to fuller levi
    TI__Mastermind 21685 points
    I am not sure why all the registers (CONFIG0, CONFIG1 etc of TDC1000 and TDC7200) are displaying 0x0 in Figure 2.

    Please refer to the TDC1000-TDC7200EVM schematic and probe if supply voltages to TDC1000 and TDC7200 are fine. Also check if you see 8MHz clock output from the oscillator.

    Thanks,
    Vishy