92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
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#include "drv_adc.h"
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#include "stdlib.h"
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#include "string.h"
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#include "gd32f4xx.h"
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#include "rtthread.h"
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#define ADC_BASIC 3300
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void ADC_Init()
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{
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//配置引脚时钟
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rcu_periph_clock_enable(RCU_GPIOC);
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//引脚复用，PC2——电压ADC1-CH12，PC3——电流ADC1-CH13
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gpio_mode_set(GPIOC,GPIO_MODE_ANALOG,GPIO_PUPD_NONE,GPIO_PIN_2);
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gpio_mode_set(GPIOC,GPIO_MODE_ANALOG,GPIO_PUPD_NONE,GPIO_PIN_3);
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rcu_periph_clock_enable(RCU_ADC1);
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//总线时钟20分频=6MHZ
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adc_clock_config(ADC_ADCCK_PCLK2_DIV4);
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/***********************************************/
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//对齐方式 ADC_INSERTED_CHANNEL
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adc_data_alignment_config(ADC1,ADC_DATAALIGN_RIGHT);
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//扫描模式
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adc_special_function_config(ADC1,ADC_SCAN_MODE,ENABLE);
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//外部触发关闭
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adc_external_trigger_config(ADC1,ADC_INSERTED_CHANNEL,DISABLE);
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//采集通道数
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adc_channel_length_config(ADC1,ADC_INSERTED_CHANNEL,2);
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//通道注入顺序
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adc_inserted_channel_config(ADC1,0,ADC_CHANNEL_13,ADC_SAMPLETIME_480);//电流
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adc_inserted_channel_config(ADC1,1,ADC_CHANNEL_12,ADC_SAMPLETIME_480);//电压
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adc_enable(ADC1);
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adc_calibration_enable(ADC1);
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}
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//电压采集
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float ptz_Voltage_collect_adc1_task()
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{
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static float adc1_v[5];
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static unsigned char adc1_num;
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int j,k;
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float tem;
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float curadc1;
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uint16_t value_V;
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//软件触发使能
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adc_software_trigger_enable(ADC1,ADC_INSERTED_CHANNEL);
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value_V = ADC_IDATA1(ADC1);
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adc1_v[adc1_num] = (float)value_V / 4096.0 * 11 *3.3;//(float)value_V;//
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adc1_num++;
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if(adc1_num >= 5)
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{
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adc1_num = 0;
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for(j = 0; j < 5-1; j++)//采样值由小到大排列
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{
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for(k = 0; k < 5-j-1; k++)
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{
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if(adc1_v[k] > adc1_v[k+1])
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{
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tem = adc1_v[k];
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adc1_v[k] = adc1_v[k+1];
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adc1_v[k+1] = tem;
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}
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}
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}
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for(uint8_t i = 1; i < 5 - 1; i++)
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{
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curadc1 = curadc1 + adc1_v[i];
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}
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curadc1 = curadc1 /((float)(5 - 2));//去掉一个最大值和一个最小值求平均值
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// g_ptz.Voltage = curadc1;
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memset(adc1_v,0,sizeof(adc1_v));
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return curadc1;
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// rt_kprintf("ADC Channel value: %f\n", curadc1);
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// pdebug(DEBUG_LEVEL_INFO,"get ptz Voltage: %.3fV",g_ptz.Voltage);
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}
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}
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void init_data_collect_module(void)
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{
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ADC_Init();//AD采集引脚初始化
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// temp75_gpio_init();//温度传感器初始化
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// creat_task_data_collect();
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}
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