MSP430FR2676: Measure SNR without GUI

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//*****************************************************************************
// Development main.c for MSP430FR2522 and MSP430FR2512 CapTIvate devices.
//
// This starter application initializes the CapTIvate touch library
// for the touch panel specified by CAPT_UserConfig.c/.h via a call to
// CAPT_appStart(), which initializes and calibrates all sensors in the
// application, and starts the CapTIvate interval timer.
//
// Then, the capacitive touch interface is driven by calling the CapTIvate
// application handler, CAPT_appHandler().  The application handler manages
// whether the user interface (UI) is running in full active scan mode, or
// in a low-power wake-on-proximity mode.
//
// \version 1.80.00.30
// Released on March 26, 2019
//
//*****************************************************************************

#include <msp430.h>                      // Generic MSP430 Device Include
#include "driverlib.h"                   // MSPWare Driver Library
#include "captivate.h"                   // CapTIvate Touch Software Library
#include "CAPT_App.h"                    // CapTIvate Application Code
#include "CAPT_BSP.h"                    // CapTIvate EVM Board Support Package
#include "AJB.h"
#include "CAPT_EMC.h"
#include "CAPT_Type.h"

char NoiseState = 0;
uint16_t NoiseLevel = 0;
uint16_t NoiseCount = 0;
uint16_t buffer[2];

void EMCLevel_Change(void)
{
    if(NoiseState == 3)
    {
        g_EMCConfig.selfModeOversamplingStyle = e16xOversampling;
        g_EMCConfig.coeffA = _IQ31(0.01087),
        MAP_CAPT_loadEMCConfig(&g_EMCConfig);
//        BTN00.ui8CntBeta = 2;
//        BTN00_E00.ui8TouchThreshold = 5;
//        BTN00_E01.ui8TouchThreshold = 5;
//        BTN00_E02.ui8TouchThreshold = 5;
//        BTN00_E03.ui8TouchThreshold = 5;
    }
    else if(NoiseState == 2)
    {
        g_EMCConfig.selfModeOversamplingStyle = e16xOversampling;
        g_EMCConfig.coeffA = _IQ31(0.01088),
        MAP_CAPT_loadEMCConfig(&g_EMCConfig);
//        BTN00.ui8CntBeta = 2;
//        BTN00_E00.ui8TouchThreshold = 5;
//        BTN00_E01.ui8TouchThreshold = 5;
//        BTN00_E02.ui8TouchThreshold = 5;
//        BTN00_E03.ui8TouchThreshold = 5;
    }
    else if(NoiseState == 1)
    {
        g_EMCConfig.selfModeOversamplingStyle = e16xOversampling;
        g_EMCConfig.coeffA = _IQ31(0.01092),
        MAP_CAPT_loadEMCConfig(&g_EMCConfig);
//        BTN00.ui8CntBeta = 2;
//        BTN00_E00.ui8TouchThreshold = 7;
//        BTN00_E01.ui8TouchThreshold = 7;
//        BTN00_E02.ui8TouchThreshold = 7;
//        BTN00_E03.ui8TouchThreshold = 7;
    }
    else
    {
        g_EMCConfig.selfModeOversamplingStyle = e4xOversampling;
        g_EMCConfig.coeffA = _IQ31(0.01092),
        MAP_CAPT_loadEMCConfig(&g_EMCConfig);
//        BTN00.ui8CntBeta = 2;
//        BTN00_E00.ui8TouchThreshold = 6;
//        BTN00_E01.ui8TouchThreshold = 6;
//        BTN00_E02.ui8TouchThreshold = 6;
//        BTN00_E03.ui8TouchThreshold = 6;
    }
}
uint16_t lastnoiseState= 0;
void EMCLevel_Evaluation(void)
{
    NoiseLevel = CAPT_getGlobalFilteredNoiseLevel();
    lastnoiseState = NoiseState;
    if( NoiseLevel>60)
    {
        NoiseState = 3;
    }
    if( NoiseLevel>46)
    {
        NoiseState = 2;
    }
    if( NoiseLevel>5)
    {
        NoiseState = 1;
    }
    else
    {
        NoiseState = 0;
    }
    if (NoiseState != lastnoiseState)
        EMCLevel_Change();
}

void main(void)
{
    //
    // Initialize the MCU
    // BSP_configureMCU() sets up the device IO and clocking
    // The global interrupt enable is set to allow peripherals
    // to wake the MCU.
    //
    WDTCTL = WDTPW | WDTHOLD;
    BSP_configureMCU();
    Panel_Init();
    __bis_SR_register(GIE);

    //
    // Start the CapTIvate application
    //
    CAPT_appStart();

    //
    // Background Loop
    //
    while(1)
    {
        //
        // Run the captivate application handler.
        //

        CAPT_appHandler();

//
        NoiseLevel = CAPT_getGlobalFilteredNoiseLevel();
//        buffer[1] = NoiseState;
        buffer[0] =  NoiseLevel;
        CAPT_writeGeneralPurposeData(&buffer[0], 1);

        //
        // This is a great place to add in any
        // background application code.
        //
        __no_operation();

        //
        // End of background loop iteration
        // Go to sleep if there is nothing left to do
        //

    } // End background loop
} // End main()