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RTOS/MSP432P401R: debug error: my board cannot be detected by the debugger when the device is in low power mode

user5176955
Prodigy 80 points
Part Number: MSP432P401R


Tool/software: TI-RTOS

Hi,

I am going to test the adcbucontinous project and when it comes to load the project to my board,the error occures. Is there anything wrong with my jumper settings?

  • 0
    TI__Guru 68351 points

    There is no issue with your jumper settings.  It is a warning and not an error.  If you change perspective to the debug perspective (circled below) you should be able to see the program run to main after you select the debug icon.

    Regards,

    Chris

  • 0 in reply to Chris Sterzik
    Prodigy 80 points

    hi Chris,

    Thanks for your help! but i have troubling get the streaming raw adc data.

    (1) when it works, the data is larger than 2500000.Then i connect the P5.5 to 5V supply, the result is the same as 3.3V. Is that because the maximum value the ADC can measure is 3.3V?And how to set the reference voltage?

    (2) i want to futher process the data via board in my PC. But following the lab, when it turns to adjust the sampling rate to 100kSPS, UART code is commented out. Is there any solution to real-time process the data via UART when i also get the maximum sampling rate of ADC?

    (3) The original code offer the project to accomplish the sampling rate of 20khz via UART, As the tutorial says,

    "After running, the application should send 100 samples and a header to the serial session twice per second. The values displayed on the console are in micro-volts.

    The ADCBuf driver performs 100 samples at 200Hz each. The driver supports higher sampling rates; however, 200Hz was chosen for easily interpretable output. "

    The sampling rate is 20ksps while the transfer rate via UART is much slower than it. so is there any data missing during the sending or the data which has been sampled is stored for a time waiting to be send?

  • 0 in reply to user5176955
    TI__Guru 68351 points

    It is very difficult to stream raw data because of the overhead associated with the UART communication.  The SLA describes the process of increasing the sampling rate, and one of the components is removing the UART communication.  

    Do not connect voltages larger than Vcc to any pin.  This will damage the device.

    No real time, but an alternative would be to collect a large number of data and then transmit.  

    Regards,

    Chris

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