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EVM430-FR6043: Troubleshooting Response for RX

Prayjit Tribhuwan
Prodigy 50 points
Part Number: EVM430-FR6043

Tool/software:

Hello Team,

We are using EVM430-FR6043 Development board for Air flow measurement,
Currently we are trying to observe the response on RX USS sensor using Digital Oscilloscope.

As marked in below image, we are connecting oscilloscope probe, 
We are able to see TX pulse on X1 of J5 OR T0 of J9, 
But we are not getting pulse/response on RX side  on X2 of J6 OR R0 of J9
Additionally, we have also checked R1also,

Please help us to analyze RX response on Oscilloscope. 

This Question is in same context of out previous Query asked : 
https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/1325723/evm430-fr6043-need-help-to-increase-the-number-of-samples-sampling-rate/5071116#5071116 


  • 0
    TI__Genius 10550 points

    Hi Prayjit,

    The EVM430FR6043 utilizes only CH0_IN labeled in the schematic, not CH1_IN. Probing the signal labeled "AFE_CH0_IN" should show the signal on an oscilloscope. Alternatively, you should be able to probe X1 and X2 to view the TX and RX signals. 

    Are you certain that your device is outputting the signal? You can confirm this by utilizing the GUI and checking to see whether the ADC capture or waveforms tabs show accurate data.

  • 0 in reply to Dylan OBrien
    Prodigy 50 points

    Hello Dylan,

    I have again reverified the pulse on oscilloscope,
    but still I am unable to get waveform on RX side 

    For TX I get waveform on T0 of J9 and same on X1(J5)


    The ADC capture on GUI tool  : 

    Regards,

    Prayjit Tribhuwan

  • 0 in reply to Prayjit Tribhuwan
    TI__Genius 10550 points

    It looks like the GUI is correctly detecting both an upstream and downstream signal from the device.

    How are you checking the signal? If you take a longer duration capture on the oscilloscope, I would expect that you could see both the upstream and downstream signals by probing those same pins.

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