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TDC7201-ZAX-EVM: How to get TDC data without using LaunchPad(MSP430)

Suchan Hong
Prodigy 40 points
Part Number: TDC7201-ZAX-EVM
Other Parts Discussed in Thread: TDC7201

Hi

I would like to know if there's a way to get TDC data without using LaunchPad(MSP430).

List of Pins I provided
- VCC3P3
- Ground
- Enable
- SCLK
- START1
- STOP1
- TDC1 (OUT)
- CSB1

When I provided random signal of START1 & STOP1, it doesn't seems I can get TDC1 signal right away.

Should I be able to code CSBx / SCLK / DIN / DOUT format in order to get DOUT(TDC1) result?

Any sample code for this issue will be very appreciated.(VHDL would be the best)

Thank you
Suchan

  • 0
    TI__Expert 3450 points

    Hello Suchan,

    Each time the TDC7201 is powered on and Enable goes high, the configuration registers are set to their default values. Please see section 7.6 of the TDC7201 datasheet for details on the default configuration. You will need to have full duplex SPI communication between a host device and the 7201 to fully utilize it.  

    Have a look at previous post 3269996 for information on the example code for the EVM. The only example code we can provide is for an MSP430 MCU, but the host device controlling the TDC7201 could be another MCU or FPGA/CPLD. 

    Regards,

    Gabriel