TMS320VC5509片内ADC采集

1. ADC采集比较简单，内部的10位的ADC，AIN0-AIN3的输入，主要是用的CSL的库函数#include <csl_adc.h>

复制代码 Uint32 adc_sample_value = 0; Uint16 samplestoraage[2]={0,0}; unsigned char adc_value_baiwei = 0; unsigned char adc_value_shiwei = 0; unsigned char adc_value_gewei = 0; int sysclkdiv=2,convratediv=0,sampletimediv=79; int counter=0,index=0; int channel=1,samplenumber=2; /* Initialize CSL library - This is REQUIRED !!! */ /*初始化CSL库*/ CSL_init(); /*设置系统的运行速度为140MHz*/ PLL_config(&myConfig); 　　ADC_setFreq(sysclkdiv,convratediv,sampletimediv); 　　ADC_read(channel,samplestoraage,samplenumber); 　　adc_sample_value = (samplestoraage[0] + samplestoraage[1])/2; 　　adc_sample_value = (adc_sample_value * 330)/1024; 　　adc_value_baiwei = adc_sample_value/100; //ADC电压值个位 　　adc_value_shiwei = adc_sample_value%100/10; //ADC电压值小数点后一位 　　adc_value_gewei = adc_sample_value%10;//ADC电压值小数点后两位

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    Uint32 adc_sample_value = 0;
    Uint16 samplestoraage[2]={0,0};
    unsigned char adc_value_baiwei = 0;
    unsigned char adc_value_shiwei = 0;
    unsigned char adc_value_gewei = 0;
    int sysclkdiv=2,convratediv=0,sampletimediv=79;
    int counter=0,index=0;
    int channel=1,samplenumber=2;

    /* Initialize CSL library - This is REQUIRED !!! */
    /*初始化CSL库*/
    CSL_init();

    /*设置系统的运行速度为140MHz*/
    PLL_config(&myConfig);    
　　ADC_setFreq(sysclkdiv,convratediv,sampletimediv);
　　ADC_read(channel,samplestoraage,samplenumber);

　　adc_sample_value = (samplestoraage[0] + samplestoraage[1])/2;
　　adc_sample_value = (adc_sample_value * 330)/1024;

　　adc_value_baiwei = adc_sample_value/100; //ADC电压值个位
　　adc_value_shiwei = adc_sample_value%100/10; //ADC电压值小数点后一位
　　adc_value_gewei = adc_sample_value%10;//ADC电压值小数点后两位