[参考译文] EVM430-FR6043：void App_Engine (void)

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https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/1346355/evm430-fr6043-void-usslibguiapp_engine-void

器件型号：EVM430-FR6043

您好

在文件 USSLibGUIApp.c 中的演示项目 MSP430FR6043EVM_USS_Demo 中。我想查看我捕获的向上/向下流动值：

pUPSCap = USS_getUPSPtr (&gUssSWConfig)；
pDNSCap = USS_getDNSPtr (&gUssSWConfig)；

我还需要发送固定流速：
PrepareVolumeFlowVarForI2CFixed(algResFixed.iq16VolumeFlowRate)；

请在无限 while 循环中向我展示、其中是放置这些命令的最佳位置：

    /* Start Flow Measurement -- Main loop  */
    while(1)
    {

        P1OUT ^= BIT5;  //blink LED

        // HMI function called before measurement to check for new packets
        // or perform user interaction (LCD/buttons) before measurement
        HMI_PreMeasurement_Update();

        if (HMI_STATUS_FATAL_ERROR != HMI_GetStatus())
        {
#ifdef __ENABLE_LPM__
            // Perform a low power measurement, going to LPM3 in between UPS and DNS
            code = USS_startLowPowerUltrasonicCapture(&gUssSWConfig);
#else
            // Perform a regular measurement, staying in LPM0 during capture
            code = USS_startUltrasonicMeasurement(&gUssSWConfig,
                                                  USS_capture_power_mode_low_power_mode_0);
#endif
            // Invalid capture must report error
            if (USS_message_code_no_error != code)
            {
                if (USSSWLIB_USS_interrupt_status & USS_HSPLL_PLL_UNLOCK_INTERRUPT)
                {
                    USS_resetUSSModule(&gUssSWConfig, true);
                    USSLibGUIApp_send_error(COMMAND_HANDLER_ERROR_FAULT_INVALID_CAPTURE,
                                                            (uint16_t) USS_message_code_HSPLL_pll_unlock_error);
                }
                else
                {
                    USSLibGUIApp_send_error(COMMAND_HANDLER_ERROR_FAULT_INVALID_CAPTURE,
                                                            (uint16_t) code);
                }

            }
            else    // run algorithms on the captured results
            {
#ifdef USS_APP_DC_OFFSET_CANCELLATION_ENABLE
                // Calibrate the gain amplifier.
                // This routine will update the agcConstant with optimal gain
                if (USS_App_userConfig.u16DCOffsetEstimateInterval != 0)
                {
                    if (++dcOffsetEstcount >= USS_App_userConfig.u16DCOffsetEstimateInterval)
                    {
                        dcOffsetEstcount = 0;
                        // Perform DC offset estimation using measurement sequence going
                        // to LPM3 between UPS and DNS capture
                        code = USS_estimateDCoffset(&gUssSWConfig,
                                                USS_dcOffEst_Calc_Mode_use_existing_UPS_DNS_capture );
                    }
                }
#endif
                // HMI function called after measurement and before algorithms
                // are executed.
                // Used to send ADC waveforms before manipulation
                HMI_PostMeasurement_Update();

                code = USS_runAlgorithmsFixedPoint(&gUssSWConfig,&algResFixed);
                if ( (USS_message_code_valid_results != code) &&
                     (USS_message_code_algorithm_captures_accumulated != code) )
                {
                    //Invalid algorithm results, report error
                    USSLibGUIApp_send_error(COMMAND_HANDLER_ERROR_FAULT_ALG_ERROR,
                                            (uint16_t) code);
                }
            }
        }


#ifdef USS_APP_RESONATOR_CALIBRATE_ENABLE
        // Calibrate the Resonator against the LFXT and obtain the correction
        // term relative to the expected value obtained during the
        // Initialization
        if (++resCalibcount >= USS_App_userConfig.u16ResonatorCalibrateInterval)
        {
            resCalibcount = 0;
            code = USS_verifyHSPLLFrequency(&gUssSWConfig,&pllCalibTestResults);
            if (code == USS_message_code_no_error)
            {
                // Update relative error if the HSPLL frequency is within range
                gUssSWConfig.algorithmsConfig->clockRelativeError =
                        (_IQ27div(pllCalibTestResults.difference,
                                  pllCalibTestResults.expectedResult));
                USS_updateClockRelativeError(&gUssSWConfig);
            }
            else
            {
                // Report error if the HSPLL frequency is outside the expected range
                if (code == USS_message_code_HSPLL_pll_unlock_error)
                {
                    // Reset USS if a PLL unlock errror is detected
                    USS_resetUSSModule(&gUssSWConfig, true);
                }
                USSLibGUIApp_send_error(COMMAND_HANDLER_ERROR_FAULT_INVALID_CAPTURE,
                                       code);
            }


        }
#endif
#ifdef USS_APP_AGC_CALIBRATE_ENABLE
        // Calibrate the gain amplifier.
        // This routine will update the agcConstant with optimal gain.
        if (USS_App_userConfig.u16AGCCalibrateInterval != 0)
        {
            if (++agcCalibcount >= USS_App_userConfig.u16AGCCalibrateInterval)
            {
                agcCalibcount = 0;
                code = USS_calibrateSignalGain(&gUssSWConfig);
            }
        }
#endif
#ifdef __WATCHDOG_ENABLE__
        hal_system_WatchdogFeed();
#endif
        // HMI function called after algorithms are executed
        // Used to send results of algorithms.
        HMI_PostAlgorithm_Update(&algResFixed);

        pUPSCap = USS_getUPSPtr(&gUssSWConfig);
        pDNSCap = USS_getDNSPtr(&gUssSWConfig);
        // prepareVolumeFlowVarForI2C(algResults.volumeFlowRate);
        prepareVolumeFlowVarForI2CFixed(algResFixed.iq16VolumeFlowRate);

        USSLibGUIApp_Delay();     /* Delay for proper time  */
    }

目前、我已在延迟前的末尾放置了

谢谢。

3 个月前