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RTOS/AWR1642BOOST: HW Trigger not working

Samuel Miller99
Expert 1005 points
Part Number: AWR1642BOOST
Other Parts Discussed in Thread: AWR1642

Tool/software: TI-RTOS

I tried to program a configuration for a waveform with a hardware trigger so I could press GPIO1 and trigger the start of the sensor. However, after doing so, I did not capture any data. When I program it with a software trigger and send "sensorStart", the device is able to detect objects in the surrounding environment. What is the appropriate procedure for triggering a sensor start with GPIO1?

  • 0
    TI__Guru 69970 points
    Hello Samuel,
    In the single AWR1642 CHIP HW trigger sensorStart doesn't mean by GPIO pulse, it means providing pulse over SYNC_IN pin.

    rlFrameCfg_t:triggerSelect -> HWTRIGGER: Each frame is triggered by rising edge of pulse in SYNC_IN pin, after receiving rlSensorStart.

    In case you want sensorStart based on GPIO trigger then better to use code refernce provided in SDK mmw demo (MmwDemo_gpioSwitchTask) where based on EVM switch press application call sensorStart API to trigger frame.


    Thanks,
    Jitendra