C++ (Cpp) DRV_ADC_SamplesAvailable示例

示例#1

文件： bsp_srand_seed.c 项目： gvsurenderreddy/creator-wifire-app

uint32_t SRAND_GetSeed(void)
{
#define WIFIRE_POT_ADC_CH_INDEX (8)
    unsigned int result = 0;

#ifdef __32MZ2048ECG100__

    AD1CON3bits.RQCONVRT = 1;
    while (AD1DSTAT1bits.ARDY8 == 0);
    result = AD1DATA8;

#else	

    DRV_ADC_Start();
    while (!DRV_ADC_SamplesAvailable(WIFIRE_POT_ADC_CH_INDEX))
        ;
    result = DRV_ADC_SamplesRead(WIFIRE_POT_ADC_CH_INDEX);
    DRV_ADC_Stop();

#endif    

    return result;
}

示例#2

文件： app.c 项目： bittenbybytes/pic18-IR-Transmitter

void toggleLedForever()
{   
    volatile int num = 0;
    
    writeReg(IODIRA, 0x00);
   // writeReg(GPPUA, 0xff);
        
    writeReg(IODIRB, 0x00);
    //writeReg(GPPUB, 0xff);
    
    DRV_ADC_Open();
    DRV_ADC_ChannelScanInputsAdd(DRV_ADC_INPUT_POSITIVE_AN11);
    DRV_ADC_Start();
    
    /* Open the Device Layer */
    
    LATF = 0;
    volatile int i = 0;
    while(1)
    {

        if(num%256 ==0)
            LATFINV = 0x00000002;
    
        for(i = 0; i < 0x3fff; i++);
        
        num++;
        
        static int adcVal = 0x1234;
        
        if((num%256 == 0))
        {   
            adcVal++;
            if(DRV_ADC_SamplesAvailable())
            {
                adcVal = DRV_ADC_SamplesRead(0);
                DRV_ADC_Start();
            }
        }
        
        writeReg(GPIOA, 0x0F);
        
        char adcHexDigit = (adcVal >> (4*(num%4))) & 0xf;
        
        int voltage = (adcVal*3300) / 1024;
        
        int temp = (voltage - 500) / 10;
        
        int digit = 16;
        
        int nDigit = (num%4);
        
        if (nDigit == 1)
            digit = abs(temp) / 10;
        else if(nDigit == 0)
            digit = abs(temp) % 10;
        else if(nDigit == 2 && temp < 0)
            digit = 18;
        
        writeReg(GPIOB, ~(numberPattern[digit]));  
        
        writeReg(GPIOA, 0x0F & (~(1 << (num%4))));
      
    }
}