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/******************************************************************************
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* Copyright (C) 2014-2015 HangZhou SiZhu Co.,LTD.
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*
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*-----------------------------------------------------------------------------
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* File: ADC.c
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* Description: use arm inner adc to sample given voltage
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* Author: Lishoujian (867693272@qq.com)
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* Date: Jan 9, 2015
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*****************************************************************************/
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/* ----------------------- Platform includes --------------------------------*/
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#include "adc.h"
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#include "delay.h"
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#include "fm25V02.h"
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#include "stm32f10x_dma.h"
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#include "calculate.h"
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#include "devicegpioinit.h"
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volatile u16 ad_data[1000];
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/******************************************
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* func: Adc_Init
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* desc: config gpio;initialize arm inner adc1
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* input: none
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* output: none
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* return: none
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*****************************************/
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void Adc_set(u8 tem_flag)
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{
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ADC_InitTypeDef ADC_InitStructure;
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GPIO_InitTypeDef GPIO_InitStructure;
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/*GPIO³õʼ»¯*/
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/*dma ad ²É¼¯º¯Êý³õʼ»¯*/
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/*dma ³õʼ»¯ÅäÖú¯Êý*/
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RCC_APB2PeriphClockCmd( RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOC, ENABLE);//enbale adc channel clock
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//RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); //Enable DMA
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RCC_ADCCLKConfig(RCC_PCLK2_Div6);
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/*¸´Î»ADC1*/
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//ADC_DeInit(ADC1);
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/*GPIO³õʼ»¯*/
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GPIO_InitStructure.GPIO_Pin = ADC_dianchi_PIN_NUM;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(ADC_dianchi_PIN_GROUP, &GPIO_InitStructure);
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ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //ADC1 work mode:independent
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ADC_InitStructure.ADC_ScanConvMode = DISABLE; //single channel mode
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ADC_InitStructure.ADC_ContinuousConvMode = DISABLE; //once conversion
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ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //triggered by software
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ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //ADC data align right
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ADC_InitStructure.ADC_NbrOfChannel = 13;
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ADC_Init(ADC1, &ADC_InitStructure);//init adc1 register
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if(tem_flag==1)
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{
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//¿ªÆôζȴ«¸ÐÆ÷
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ADC_TempSensorVrefintCmd(ENABLE);
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}
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/*ÅäÖÃADCʱÖÓ*/
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/*Ö¸¶¨Í¨µÀ²¢ÉèÖÃת»»Ê±¼ä*/
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//ADC_RegularChannelConfig(ADC1, data_p->ad_ch, 1, ADC_SampleTime_13Cycles5);
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ADC_Cmd(ADC1, ENABLE);//enbale adc1
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ADC_ResetCalibration(ADC1);//reset & calibrate adc1
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while(ADC_GetResetCalibrationStatus(ADC1));//waiting for ending
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ADC_StartCalibration(ADC1);//open calibrating adc1
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while(ADC_GetCalibrationStatus(ADC1));//waiting for ending
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}
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void Adc_DeInit(u8 tem_flag)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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// ADC_InitTypeDef ADC_InitStructure;
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/*GPIO³õʼ»¯*/
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RCC_APB2PeriphClockCmd( RCC_APB2Periph_ADC1 , DISABLE);//enbale adc channel clock
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if(tem_flag==1)
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{
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//¿ªÆôζȴ«¸ÐÆ÷
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ADC_TempSensorVrefintCmd(DISABLE);
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}
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ADC_DeInit(ADC1);
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ADC_Cmd(ADC1, DISABLE);
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GPIO_InitStructure.GPIO_Pin = ADC_dianchi_PIN_NUM;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(ADC_dianchi_PIN_GROUP, &GPIO_InitStructure);
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}
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u16 Get_val(u8 ch)
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{
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u16 DataValue; //
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/* ADC1 regular channel14 configuration */
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ADC_RegularChannelConfig(ADC1, ch, 1, ADC_SampleTime_55Cycles5);
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/* Start ADC1 Software Conversion */
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ADC_SoftwareStartConvCmd(ADC1, ENABLE);
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/* Test if the ADC1 EOC flag is set or not */
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while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC));
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/*Returns the ADC1 Master data value of the last converted channel*/
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DataValue = ADC_GetConversionValue(ADC1);
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return DataValue;
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}
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u16 Temp_GetADCData(void)
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{
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/*Èí¼þÆô¶¯ADת»»*/
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ADC_SoftwareStartConvCmd(ADC1, ENABLE);
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/*µÈ´ýADת»»Íê³É*/
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while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC));
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/*¶ÁÈ¡ºÍ·µ»ØADת»»Öµ*/
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return (ADC_GetConversionValue(ADC1));
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}
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#define DATA_START 2
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#define DATA_GET_LENGTH 20
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/******************************************
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* func: Get_vol_Average
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* desc:
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* - sample total 100 data,list data from low to hign,get middle 64 data
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* - calculation sample mean of 64 middle data
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* input:
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* ch - select sample channel of adc1
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* vref_adc - Voltage reference of adc1 multiply by 1000. eg:3.3v ->33000
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* output: none
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* return: calculation sample mean of 64 middle data,multiply by 1000. eg:1.0v -> 1000
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*****************************************/
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uint16 Get_vol_Average(u8 channel,u8 tem_flag) //channelͨµÀºÅ tem_flag£º0±íʾÍⲿ¶ÁÈ¡ 1±íʾÄÚ²¿Í¨µÀ¶ÁȡζÈÓÃ
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{
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u32 i, t;
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// uint16 temp;
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uint32 temp_vol;
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uint16 ad_get_address_p[DATA_GET_LENGTH + 1];
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uint32 temp_vol_small;
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uint32 temp_vol_big;
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temp_vol = 0;
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Adc_set(tem_flag);
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//ADC_DMA_Transmit();
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for(i = 0; i < DATA_GET_LENGTH; i ++)
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{
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ad_get_address_p[i] = Get_val(channel);
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temp_vol += ad_get_address_p[i];
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}
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Adc_DeInit(tem_flag);
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temp_vol_small = ad_get_address_p[DATA_START];
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temp_vol_big = ad_get_address_p[DATA_START];
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for(i = (DATA_START+1); i < (DATA_GET_LENGTH -1); i ++)
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{
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if(temp_vol_small > ad_get_address_p[i])
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temp_vol_small = ad_get_address_p[i];
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if(temp_vol_big < ad_get_address_p[i])
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temp_vol_big = ad_get_address_p[i];
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}
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temp_vol = 0;
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for(t = DATA_START; t < (DATA_GET_LENGTH - 1); t ++)
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{
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temp_vol += ad_get_address_p[t];
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}
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temp_vol = temp_vol - temp_vol_small - temp_vol_big;
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temp_vol = temp_vol /(DATA_GET_LENGTH - DATA_START - 3);
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return (uint16)temp_vol;
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}
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// /**
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// * @brief »ñÈ¡°ÍÌØÎÖ˹Â˲¨ºóµÄÊý¾Ý
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// * @param ÎÞ
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// * @retval ADCÊý¾Ý
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// */
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double Temp_GetBFiltedData(ad_data_s * data_p)
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{
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u16 i,t;
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volatile double average;
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volatile u32 sum=0;
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double temp_adc_data[20];
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/*-------------------------Êý¾Ý²É¼¯-------------------------*/
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//AD²ÉÑùSMPL_NUM´Î
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Adc_set(0);
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// ADC_DMA_Transmit();
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for(t = 0; t < 20; t ++)
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{
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temp_adc_data[t]= data_p->ad_get_address_p[t];
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sum += temp_adc_data[t];
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}
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average=(double)sum/20;
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sum=0;
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/*------------------------°ÍÌØÎÖ˹Â˲¨-----------------------*/
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filter_set_initial(temp_adc_data[1],temp_adc_data[0],average,average);
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//»ñÈ¡Â˲¨ºóµÄÊý¾Ý²¢ÇóºÍ
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for(i=2;i<20;i++)
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{
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temp_adc_data[i]=filter_get_output(temp_adc_data[i]);
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sum+= temp_adc_data[i];
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}
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//¼ÆËãÂ˲¨ºóÊý¾ÝµÄƽ¾ùÖµ
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average=(double)sum/(20-2);
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return average;
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}
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