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#include "math.h"
//#include "stdbool.h"
#include "iostm8s003f3.h"
#include "stm8s.h" //包含用到的外設的頭文件
#define u8 unsigned char
#define uchar unsigned char
#define uint unsigned int
#define sCnt 104
uint ms_count, tmpin, ADCBuff[6], ADValueV[sCnt], ADValueI[sCnt], ADCData, mA;
u8 pDataV=0, pDataI=0, vDotPS, cDotPS, VGain = 35, ampGain = 129, vFlag=0, iFlag=0;
unsigned long mV; //uint的話,mV最大只能到 65535mV,本電源80V,故用long
float voltRAW, curtRAW, Rs = 0.00218;
float ADVal_Av[2]={0}, Val_Av[2]={0};
float preCoef[2]={0.005}; //ADC 轉(zhuǎn)換濾波噪聲用的系數(shù)
bool preTrend[2]={TRUE}; //ADC 轉(zhuǎn)換結(jié)果的變化趨勢 true:變大，false:變小
float ADvalue[2]={0.0}; //ADC 前次的轉(zhuǎn)換結(jié)果濾波后的值
float newData[2]={0.0}; //ADC 本次次的轉(zhuǎn)換結(jié)果
/*******************************************************************************
**函數(shù)名稱：void GPIO_Init0()
**功能描述：GPIO->功能引腳初始化
**入口參數(shù)：無
**輸出：無
*******************************************************************************/
void GPIO_Init0()
{
PA_ODR |=0x02; //PA1置高，I個位選通
PA_ODR &=0xf3; //PA2,3置零，g，f
PA_DDR |=0x0e; //設置端口PA1,2,3的輸入輸出方向寄存器為輸出方向
PA_CR1 |=0x0e; //PA1,2,3為推挽輸出
PA_CR2 |=0x0e; //PA1,2,3是輸出速度最快為10MHz
PB_ODR |=0x30; //PB4,5置高，I十位和百位選通
PB_DDR |=0x30; //設置端口PB4,5的輸入輸出方向寄存器為輸出方向
PB_CR1 |=0x30; //PB4,5為推挽輸出
PB_CR2 |=0x30; //PB4,5是輸出速度最快為10MHz
PC_ODR &=0x07; //置零PC3,4,5,6,7， c,f,h,d,e
PC_DDR |=0xf8; //設置端口PC->3,4,5,6,7的輸入輸出方向寄存器為輸出方向
PC_CR1 |=0xf8; //PC->3,4,5,6,7為推挽輸出
PC_CR2 |=0xf8; //PC->3,4,5,6,7是輸出速度最快為10MHz
PD_ODR &=0xfd; //置零PD1, a
PD_ODR |=0x70; //PD4,5,6置高 V百位個位和十位選通
PD_DDR |=0x72; //設置端口PD->1,4,5,6的輸入輸出方向寄存器為輸出方向
PD_CR1 |=0x72; //PD->1,4,5,6為推挽輸出
PD_CR2 |=0x72; //PD->1,4,5,6是輸出速度最快為10MHz
}
/*******************************************************************************
**函數(shù)名稱：void SMG_Display(int num)
**功能描述：SMG顯示函數(shù)
**入口參數(shù)：int num
**輸出：無
*******************************************************************************/
void SMG1_Display(unsigned char num)
{
PA_ODR |=0x02; //PA1置高，I個位選通
PB_ODR |=0x30; //PB4,5置高，I十位和百位選通
PD_ODR |=0x70; //PD4,5,6置高 V百位個位和十位選通
switch(num)
{
case 0: //a b c d e f
PA_ODR |=0x08; //PA3置高，b
PA_ODR &=0xfb; //PA2置零，g
PC_ODR &=0xdf; //置零PC5，h
PC_ODR |=0xd8; //PC3,4,6,7置高 c,f,d,e
PD_ODR |=0x02; //PD1置高 a
break;
case 1: //b c
PA_ODR |=0x08; //PA3置高，b
PA_ODR &=0xfb; //PA2置零，g
PC_ODR &=0x0f; //置零PC4,5,6,7，f,h,d,e
PC_ODR |=0x08; //PC3置高 c
PD_ODR &=0xfd; //PD1置零 a
break;
case 2: // a b d e g
PA_ODR |=0x0c; //PA2,3置高，g,b
PC_ODR &=0xc7; //置零PC3,4,5 c,f,h
PC_ODR |=0xc0; //PC6,7置高,d e
PD_ODR |=0x02; //PD1置高 a
break;
case 3: //a b c d g
PA_ODR |=0x0c; //PA2,3置高，g,b
PC_ODR &=0x4f; //置零PC4,5,7，f,h,e
PC_ODR |=0x48; //PC3,6置高 c,d
PD_ODR |=0x02; //PD1置高 a
break;
case 4: //b c f g
PA_ODR |=0x0c; //PA2,3置高，g,b
PC_ODR &=0x1f; //置零PC5,6,7，h,d,e
PC_ODR |=0x18; //PC3,4置高 c,f
PD_ODR &=0xfd; //PD1置零 a
break;
case 5: //a c d f g
PA_ODR |=0x04; //PA2置高，g
PA_ODR &=0xf7; //PA3置零，b
PC_ODR &=0x5f; //置零PC5,7 h,e
PC_ODR |=0x58; //PC3,4,6置高 c,f,d
PD_ODR |=0x02; //PD1置高 a
break;
case 6: //a c d e f g
PA_ODR |=0x04; //PA2置高，g
PA_ODR &=0xf7; //PA3置零，b
PC_ODR &=0xdf; //置零PC5，h
PC_ODR |=0xd8; //PC3,4,6,7置高 c,f,d,e
PD_ODR |=0x02; //PD1置高 a
break;
case 7: //a b c
PA_ODR |=0x08; //PA3置高，b
PA_ODR &=0xfb; //PA2置零，g
PC_ODR &=0x0f; //置零PC4,5,6,7，f,h,d,e
PC_ODR |=0x08; //PC3置高 c
PD_ODR |=0x02; //PD1置高 a
break;
case 8: //a b c d e f g
PA_ODR |=0x0c; //PA2,3置高，g,b
PC_ODR &=0xdf; //置零PC5，h
PC_ODR |=0xd8; //PC3,4,6,7置高 c,f,d,e
PD_ODR |=0x02; //PD1置高 a
break;
case 9: //a b c d f g
PA_ODR |=0x0c; //PA2,3置高，g,b
PC_ODR &=0x5f; //置零PC5,7 h,e
PC_ODR |=0x58; //PC3,4,6置高 c,f,d
PD_ODR |=0x02; //PD1置高 a
break;
}
}
/*******************************************************************************
**函數(shù)名稱：void ADC_Init()
**功能描述：初始化ADC
**入口參數(shù)：無
**輸出：無
*******************************************************************************/
void ADC_Init()
{
//電流
PD_DDR_bit.DDR2 = 0; //設置PD->2 為輸入
PD_CR1_bit.C12 = 0; //設置為浮空輸入
PD_CR2_bit.C22 = 0; //設置中斷禁止
//電壓
PD_DDR_bit.DDR3 = 0; //設置PD->3 為輸入
PD_CR1_bit.C13 = 0; //設置為浮空輸入
PD_CR2_bit.C23 = 0; //設置中斷禁止
ADC_CR1_bit.SPSEL = 7; //fmaster / 18 = 16MHZ / 18 = 888888HZ
ADC_CR2_bit.ALIGN = 1; //RIGHT ALIGN
ADC_CR1_bit.ADON = 1; //初次上電喚醒ADC
}
/*******************************************************************************
**函數(shù)名稱：uint Get_Adc(unsigned char ac)
**功能描述：讀取ADC完成一次模數(shù)轉(zhuǎn)換結(jié)果
**入口參數(shù)：ac ->ADC通道號
**輸出：ADC轉(zhuǎn)換結(jié)果
*******************************************************************************/
uint Get_Adc(u8 ac) //獲取adc值
{
uint Value;
ADC_CSR_bit.CH = ac; //選擇ADC通道 AIN3,4
ADC_CR1 |= 0x01; //開始轉(zhuǎn)換
while((0x80&ADC_CSR)==0); //等待轉(zhuǎn)換完成
ADC_CSR &= ~0x80; //清除轉(zhuǎn)換標志
Value = (uint)ADC_DRL; //取低8位
Value |= (uint)ADC_DRH<<8; //低8位和高兩位合并
return(Value); //返回adc值
}
float* Ad_Av(u8 ac) //每次只采樣一個數(shù)據(jù)，采完sCnt個數(shù)據(jù)就更新結(jié)果，否則就顯示上一次的結(jié)果
{
u8 num, pMaxV=0, pMaxV2=0, pMinV=0, pMinV2=0, pMaxI=0, pMaxI2=0, pMinI=0, pMinI2=0;
if(ac==4){ //電壓
ADValueV[pDataV] = Get_Adc(ac);
Val_Av[0] += ADValueV[pDataV++];
}else{ //電流
ADValueI[pDataI] = Get_Adc(ac);
Val_Av[1] += ADValueI[pDataI++];
}
if(pDataV>=sCnt){ //電壓數(shù)據(jù)采樣完成，去除最大最小求平均
pDataV=0; vFlag=1;
for(num=0;num<sCnt;num++) {
if(ADValueV[num] < ADValueV[pMinV]) pMinV = num;
if(ADValueV[num] > ADValueV[pMaxV]) pMaxV = num;
}
for(num=0;num<sCnt;num++) { //去掉次大次小
if(num != pMinV && ADValueV[num] < ADValueV[pMinV2]) pMinV2 = num;
if(num != pMaxV && ADValueV[num] > ADValueV[pMaxV2]) pMaxV2 = num;
}
ADVal_Av[0] = (Val_Av[0] - ADValueV[pMinV] - ADValueV[pMinV2] - ADValueV[pMaxV] - ADValueV[pMaxV2])/(sCnt-4);
//ADVal_Av[0] = (Val_Av[0] - ADValueV[pMinV] - ADValueV[pMaxV])/(sCnt-2); //只去掉最大最小的話，用這句
Val_Av[0]=0;
}
if(pDataI>=sCnt){ //電流數(shù)據(jù)采樣完成，去除最大最小求平均
pDataI=0; iFlag=1;
for(num=0;num<sCnt;num++) {
if(ADValueI[num] < ADValueI[pMinI]) pMinI = num;
if(ADValueI[num] > ADValueI[pMaxI]) pMaxI = num;
}
for(num=0;num<sCnt;num++) { //如果還要去掉次大次小的話，就去掉注釋
if(num != pMinI && ADValueI[num] < ADValueI[pMinI2]) pMinI2 = num;
if(num != pMaxI && ADValueI[num] > ADValueI[pMaxI2]) pMaxI2 = num;
}
ADVal_Av[1] = (Val_Av[1] - ADValueI[pMinI] - ADValueI[pMinI2] - ADValueI[pMaxI] - ADValueI[pMaxI2])/(sCnt-4);
//ADVal_Av[1] = (Val_Av[1] - ADValueI[pMinI] - ADValueI[pMaxI])/(sCnt-2); //只去掉最大最小的話，用這句
Val_Av[1]=0;
}
return(ADVal_Av);
}
/***** 噪聲濾波 *******************
baseCoef：濾波系數(shù)，越小濾波越強；
i：通道，可供多個測量對象濾波
preCoef：上次濾波后計算的系數(shù)值
preTrend：上次濾波的數(shù)據(jù)變化方向
preData：上次濾波后的結(jié)果
newData：這次新采樣的數(shù)據(jù)
***********************************************************************/
void Noise_Filter(float baseCoef, u8 i, float *preCoef, bool *preTrend, float *preData, float *newData){
bool newTrend;
if (newData[i] == preData[i]) return;
if (newData[i] > preData[i]) newTrend = TRUE;
else newTrend = FALSE;
if (newTrend == preTrend[i]) preCoef[i] = preCoef[i] * 2;
else preCoef[i] = baseCoef;
preTrend[i] = newTrend;
if(preCoef[i] < baseCoef) preCoef[i] = baseCoef;
else if(preCoef[i] > 0.995) preCoef[i] = 0.995;
preData[i] = preData[i] + (newData[i] - preData[i])* preCoef[i];
}
/***** 電壓數(shù)據(jù)處理 ***************************************
tmpin：采集的電壓數(shù)據(jù)；
輸出：電壓值，單位：V
*********************************************************/
float ProcessVoltage(float tmpin)
{
float Temp;
Temp = tmpin * 3.3 * VGain / 1023; //單位：V
//下面是校正，應根據(jù)實際情況重新計算。其實不校正精度也不錯
if(Temp<=0.5) Temp = 1.0 * Temp;
else if(Temp>0.5 && Temp<2.5) Temp = 0.98 * Temp + 0.28;
else if(Temp<6.5) Temp = 1.005 * Temp + 0.235;
else if(Temp<11.5) Temp = 1.00325 * Temp + 0.22925;
else if(Temp<36.5) Temp = 0.990417 * Temp + 0.385;
else Temp = 0.988889 * Temp + 0.482222;
if(Temp<0) Temp=0;
return (Temp);
}
/***** 電流數(shù)據(jù)處理 ***************************************
tmpin：采集的電流數(shù)據(jù)；
輸出：電流值，單位：A
*********************************************************/
float ProcessCurrent(float tmpin)
{
float Temp;
Temp = tmpin * 3.3 / 1023 / ampGain / Rs; //單位：A
//下面是校正，應根據(jù)實際情況重新計算。本例中是將運放的反饋電阻 R6（180k）
//改成 1M后，放大系數(shù)ampGain由29變?yōu)?29。
//取樣電阻 Rs約為 2mR。
Temp = 1.385042 * Temp - 1.698751;
if(Temp<0) Temp=0;
return (Temp);
}
/**** 本例中未使用 ******************************************************
**函數(shù)名稱：void Timer4Init()
**功能描述：定時器4參數(shù)初始化
**入口參數(shù)：無
**輸出：無
*******************************************************************************/
void Timer4Init()
{
TIM4_IER_bit.UIE = 0; //禁止中斷
TIM4_EGR_bit.UG = 0;
TIM4_PSCR_bit.PSC = 7; // 設置TIM4的時鐘分頻系數(shù)為 128 即定時器時鐘 = 16000000 /128 = 125KHZ
TIM4_ARR = 125; // 設定TIM4產(chǎn)生1毫秒的計數(shù)值
TIM4_CNTR = 0x00; // 清除TIM4計數(shù)寄存器數(shù)值
TIM4_SR_bit.UIF = 0; //清除中斷標志
TIM4_SR_bit.TIF = 0;
TIM4_CR1_bit.CEN = 1; //使能定時器4計數(shù)
TIM4_CR1_bit.ARPE = 1; //使能預裝載
TIM4_IER_bit.UIE = 1; // 使能更新中斷
}
/**** 本例中未使用 *******************************************************
**函數(shù)名稱：void TIM2_Init()
**功能描述：定時器2參數(shù)初始化
**入口參數(shù)：無
**輸出：無
*******************************************************************************/
void TIM2_Init()
{
TIM2_PSCR = 0x00; //定時器2預分頻數(shù)為 1 分頻，即定時器時鐘 = 系統(tǒng)時鐘 = 16MHz
TIM2_ARRH = 0x3E; //設置1毫秒時間自動重載 16000 = 0x3e80
TIM2_ARRL = 0x80; //
TIM2_CNTRH = 0x00; //清除計數(shù)寄存器
TIM2_CNTRL = 0x00; //
TIM2_SR1 = 0x00; //清除所有的中斷標志
}
/**** 本例中未使用 ******************************************************
**函數(shù)名稱：void TIM2_DelayMs(unsigned int ms)
**功能描述：定時器2參進行精確延時，最小為1毫秒，最大65535
**入口參數(shù)：unsigned int ms 1=< ms <= 65535
**輸出：無
*******************************************************************************/
void TIM2_DelayMs(unsigned int ms)
{
TIM2_CR1 = 0x81; //啟動定時器2開始計數(shù)
while(ms--)
{
while( !(TIM2_SR1 & 0x01)); //等待計數(shù)是否達到1毫秒
TIM2_SR1 &= ~(0x01); //計數(shù)完成1毫秒，清除相應的標志
}
TIM2_CR1 = 0x00; //延時全部結(jié)束，關閉定時器2
}
/*******************************************************************************
**函數(shù)名稱：void delay(unsigned int ms)
**功能描述：大概延時
**入口參數(shù)：unsigned int ms 輸入大概延時數(shù)值
**輸出：無
*******************************************************************************/
void delay(unsigned int ms)
{
unsigned int x , y;
for(x = ms; x > 0; x--) /* 通過一定周期循環(huán)進行延時*/
for(y = 1000 ; y > 0 ; y--);
}
/*******************************************************************************
**函數(shù)名稱：void V_Show()
**功能描述：在數(shù)碼管上顯示電壓值
**入口參數(shù)：ms：每個數(shù)碼管延時。顯示數(shù)據(jù)存儲在 ADCBuff[2] - ADCBuff[0]
**輸出：無
*******************************************************************************/
void V_Show(unsigned int ms)
{
SMG1_Display(ADCBuff[2]); //顯示V百位
if(vDotPS==2) PC_ODR |=0x20; //PC5置高,h點
PD_ODR &=0xef; //PD4置低 V百位選通
delay(ms);
SMG1_Display(ADCBuff[1]); //顯示V十位
if(vDotPS==1) PC_ODR |=0x20; //PC5置高,h點
PD_ODR &=0xbf; //PD6置低 V十位選通
delay(ms);
SMG1_Display(ADCBuff[0]); //顯示V個位
PD_ODR &=0xdf; //PD5置低 V個位選通
delay(ms);
}
/*******************************************************************************
**函數(shù)名稱：void I_Show()
**功能描述：在數(shù)碼管上顯示電流值
**入口參數(shù)：ms：每個數(shù)碼管延時。顯示數(shù)據(jù)存儲在 ADCBuff[5] - ADCBuff[3]
**輸出：無
*******************************************************************************/
void I_Show(unsigned int ms)
{
SMG1_Display(ADCBuff[5]); //顯示A百位
if(cDotPS==5) PC_ODR |=0x20; //PC5置高,h點
PB_ODR &=0xdf; //PB5置低，I百位選通
delay(ms);
SMG1_Display(ADCBuff[4]); //顯示A十位
if(cDotPS==4) PC_ODR |=0x20; //PC5置高,h點
PB_ODR &=0xe0; //PB4置低，I十位選通
delay(ms);
SMG1_Display(ADCBuff[3]); //顯示A個位
PA_ODR &=0xfd; //PA1置低，I個位選通
delay(ms);
}
/* 主函數(shù) */
int main(void)
{
//asm("sim"); //關閉系統(tǒng)總中斷
CLK_CKDIVR = 0x00; //CPUDIV = 1 HSIDIV = 1 內(nèi)部時鐘 = 16Mhz
GPIO_Init0();
ADC_Init(); //調(diào)用ADC初始化函數(shù)
//TIM2_Init();
//Timer4Init(); //初始化定時器4
//asm("rim"); //打開系統(tǒng)總中斷
while(1)
{
//if(adcflag == 1) //1秒定時時間到對使能ADC進行采樣
//{
//asm("sim"); //關系統(tǒng)總中斷
voltRAW = Ad_Av(4)[0]; //獲取電壓數(shù)據(jù)
if(vFlag==1){ //電壓數(shù)據(jù)采集完成才進行以下計算，否則跳過，將顯示上次數(shù)據(jù)
vFlag=0;
newData[0] = ProcessVoltage(voltRAW);
Noise_Filter(0.5, 0, preCoef, preTrend, ADvalue, newData);
//ADvalue[0] = newData[0]; //不要上面的濾波時使用
mV = (unsigned long)(ADvalue[0]*1000);
if(mV > 9999){
vDotPS=1;
ADCBuff[0] = mV / 100 % 10; //0.1V
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