void SYS_PORTS_PinModeSelect ( PORTS_MODULE_ID index, PORTS_ANALOG_PIN pin,
								PORTS_PIN_MODE mode)
{
#if defined(PLIB_PORTS_ExistsPinMode)
    if(PLIB_PORTS_ExistsPinMode(index))
    {
        PLIB_PORTS_PinModeSelect ( index, pin, mode);
    }
#endif
}
Exemple #2
0
int main(void)
{
     /* Disable JTAG to free up PORTA pins */
    DDPCONbits.JTAGEN = 0;

    /* Set lower 8 bits of PORTA as output for LEDs, clear the bits to ensure
       there is no mismatch when they are toggled */
    PLIB_PORTS_DirectionOutputSet(PORTS_ID_0, PORT_CHANNEL_A, (PORTS_DATA_MASK)0x00FF);
    PLIB_PORTS_Clear(PORTS_ID_0, PORT_CHANNEL_A, (PORTS_DATA_MASK)0x00FF);

    /* Set pin AN2 as analog input */
    PLIB_PORTS_PinModeSelect(PORTS_ID_0, PORTS_ANALOG_PIN_2, PORTS_PIN_MODE_ANALOG);
    
    /* ADC setup - ouput in integer format, trigger mode auto, enable autosample */
    PLIB_ADC_ResultFormatSelect(ADC_ID_1, ADC_RESULT_FORMAT_INTEGER_16BIT);
    PLIB_ADC_SamplingModeSelect(ADC_ID_1, ADC_SAMPLING_MODE_MUXA);
    PLIB_ADC_ConversionTriggerSourceSelect(ADC_ID_1, ADC_CONVERSION_TRIGGER_INTERNAL_COUNT);
    PLIB_ADC_VoltageReferenceSelect(ADC_ID_1, ADC_REFERENCE_VDD_TO_AVSS );
    PLIB_ADC_SampleAcqusitionTimeSet(ADC_ID_1, 0x1F);
    PLIB_ADC_ConversionClockSet(ADC_ID_1, SYS_FREQUENCY, 32);

    /* Connect AN2 as positive input, Vref- as negative input */
    PLIB_ADC_MuxChannel0InputPositiveSelect(ADC_ID_1, ADC_MUX_A, ADC_INPUT_POSITIVE_AN2);
    PLIB_ADC_MuxChannel0InputNegativeSelect(ADC_ID_1, ADC_MUX_A, ADC_INPUT_NEGATIVE_VREF_MINUS);

    /* Enable the ADC module */
    PLIB_ADC_Enable(ADC_ID_1);

    int potValue;
    int i;
    int ledMask;

    /* Stuck in this loop, reading the potentiometer and writing to the LEDs */
    while (1)
    {
        potValue = readPotentiometer();
        potValue = potValue >> 7; /* 10-bit value to 3-bit value */

        ledMask = 0;

        /* Creates a mask for the LEDs, corresponding to the value read from
           the potentiometer */
        for (i = 0; i <= potValue; i++)
        {
            ledMask |=  1<<(i);
        }

        /* Write the mask to the LEDs */
        PLIB_PORTS_Write(PORTS_ID_0, PORT_CHANNEL_A, (PORTS_DATA_MASK)ledMask);
    }

    /* Program should not go here during normal operation */
    return EXIT_FAILURE;
}
Exemple #3
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void SYS_PORTS_Initialize(void)
{
    /* AN and CN Pins Initialization */
    PLIB_PORTS_AnPinsModeSelect(PORTS_ID_0, SYS_PORT_AD1PCFG, PORTS_PIN_MODE_DIGITAL);
    PLIB_PORTS_CnPinsPullUpEnable(PORTS_ID_0, SYS_PORT_CNPUE);
    PLIB_PORTS_CnPinsEnable(PORTS_ID_0, SYS_PORT_CNEN);
    PLIB_PORTS_ChangeNoticeEnable(PORTS_ID_0);
    
    
    /* PORT D Initialization */
    PLIB_PORTS_DirectionOutputSet( PORTS_ID_0, PORT_CHANNEL_B,  SYS_PORT_D_TRIS ^ 0xFFFF);
    //PLIB_PORTS_DirectionOutputSet( PORTS_ID_0, PORT_CHANNEL_B,  0x2000);
    PLIB_PORTS_OpenDrainEnable(PORTS_ID_0, PORT_CHANNEL_B, SYS_PORT_D_ODC);
    PLIB_PORTS_PinModeSelect (PORTS_ID_0, PORTS_ANALOG_PIN_11, PORTS_PIN_MODE_DIGITAL);
}