2015年电赛STM32程序电流电压采集 -

#include "stm32f10x.h"
#include "delay.h"
#include "sys.h"
#include "adc.h"
#include "timer.h"
#include "stdio.h"
#include "key.h"
#include "lcd.h"
#include "usart.h"
#include "led.h"
#include "dac.h"
#include "pid.h"
/* Private variables ---------------------------------------------------------*/
extern __IO uint32_t ADC_DualConvertedValueTab[10][4];
extern float b;
float V[50] = {0},I[50] = {0},t[50] = {0},m[50] = {0};
float Vaver,Iaver,temp ,Iaver1, Iaver2,Vaver2;
float K = 800;
u8 g_ADCflag = 0;
u16 g_adc = 0;
signed g_fbase = 30;
u8 Iflag = 1;
u32 a=0;
u8 keyvalue=0;
float Vsum = 0,Isum = 0,tsum = 0,msum = 0;
float Vmin = 3.3,Imin = 0,tmin = 0,mmin = 0;
float Vmax = 0,Imax = 0,tmax=0,mmax = 0;
u16 dacval=2160;
float dianya;
u16 j = 0;
u16 adcx;
u8 string[]={" "};
u8 string1[]={" "};
u8 string2[]={" "};
u8 string3[]={" "};
u8 string4[]={" "};
u8 string5[]={" "};
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; //定时器2优先级最高
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
float ADaverage(u8 N)
{
float sum=0;
u8 i= 0;
for(i=0;i<10;i++)
{
sum = sum + (float)(ADC_DualConvertedValueTab[i][N]/4096.0 * 3.3);
}
return (sum/10.0);
}
int main(void)
{
delay_init(); //延时函数初始化
uart_init(9600); //串口初始化为9600
Lcd_Init(); //初始化OLED
LED_Init();
KEY_Init(); //按键初始化
ADCs_Init(); //初始化ADC
Timer_Init(); //20ms定时器
NVIC_Configuration(); //设置NVIC中断分组
Dac1_Init();
PIDInit ();
PIDInit2 ();
LCD_Clear(WHITE);
BACK_COLOR=WHITE;
DAC_SetChannel1Data(DAC_Align_12b_R, 2160);//????0
while(1)
{
LCD_ShowString(8,0,"pid:",RED);
LCD_ShowString(8,20,"temp:",RED);
LCD_ShowString(8,40,"Vaver:",RED);
LCD_ShowString(8,60,"Iaver:",RED);
LCD_ShowString(8,80,"DAC:",RED);
LCD_ShowString(8,100,"dianya:",RED);
LCD_ShowString(8,120,"Vaver2:",RED);
keyvalue = KEY_Scan(0);//读取按键值
if(keyvalue ==KEY0_PRES)//设定电压减1Hz B5
{
b=b-0.005;
}
else if(keyvalue ==KEY1_PRES)//设定电压减1Hz B3
{
if(dacval>65) dacval=dacval-65;
DAC_SetChannel1Data(DAC_Align_12b_R, dacval);//??DAC?
}
else if(keyvalue ==WKUP_PRES)//设定电压减1Hz B3
{
if(dacval<4092) dacval=dacval+65;
DAC_SetChannel1Data(DAC_Align_12b_R, dacval);//??DAC?
}
sprintf((char*)string, "%.3f", b); //显示电压值
LCD_ShowString(74,0,string,RED);
adcx=DAC_GetDataOutputValue(DAC_Channel_1);//??????DAC??
LCD_ShowNum(74,80,adcx,4,RED);
dianya=(float)adcx*(3.3/4096); //得到DAC电压值
sprintf((char*)string3, "%.3f", dianya); //显示电压值
LCD_ShowString(74,100,string3,RED);
if(g_ADCflag==1)//采集到50个电压电流值进行处理
{
Vsum = 0;Vmin = 3.3;Vmax = 0;
Isum = 0;Imin = 3.3;Imax = 0;
tsum = 0;tmin = 3.3;tmax = 0;
msum = 0;mmin = 3.3;mmax = 0;
for(j=0;j<50;j++)
{
Vsum = Vsum + V[j];
if(V[j] < Vmin) Vmin = V[j];
if(V[j] > Vmax) Vmax = V[j];
Isum = Isum + I[j];
if(I[j] < Imin) Imin = I[j];
if(I[j] > Imax) Imax = I[j];
tsum = tsum + t[j];
if(t[j] < tmin) tmin = t[j];
if(t[j] > tmax) tmax = t[j];
msum = msum + m[j];
if(m[j] < mmin) mmin = m[j];
if(m[j] > mmax) mmax = m[j];
}
Vaver =(Vsum - Vmin - Vmax)/48;//去最大值最小值后平均
Iaver =(Isum - Imin - Imax)/48;//去最大值最小值后平均
temp =(tsum - tmin - tmax)/48;//去最大值最小值后平均
Vaver2 =(msum - mmin - mmax)/48;//去最大值最小值后平均
Iaver1= Iaver * 0.913;
Iaver2=Iaver1 - 0.6317;
if(Vaver>1.52 || Vaver<1.48) K =K + outPIDCalc(Vaver);//计算电压调制系数
if(K>990) K=990;//限幅处理
else if(K<300) K = 300;
if(temp<2.95)
{
GPIO_SetBits(GPIOA,GPIO_Pin_8);
GPIO_ResetBits(GPIOD,GPIO_Pin_2);
}
else if(temp>3.05)
{
GPIO_SetBits(GPIOD,GPIO_Pin_2); //PD.2 输出高
GPIO_ResetBits(GPIOA,GPIO_Pin_8);
}
if(Vaver2>2.5)
{
GPIO_SetBits(GPIOC,GPIO_Pin_4);
}
else GPIO_ResetBits(GPIOC,GPIO_Pin_4);
sprintf((char*)string1, "%.3f", temp); //显示设定电流值
LCD_ShowString(74,20,string1,RED);
sprintf((char*)string2, "%.3f", Vaver); //显示电压值
LCD_ShowString(74,40,string2,RED);
sprintf((char*)string4, "%.3f", Iaver2); //显示电压值
LCD_ShowString(74,60,string4,RED);
sprintf((char*)string5, "%.3f", Vaver2); //显示电压值
LCD_ShowString(74,120,string5,RED);
// sprintf((char*)string, "%d", Iflag); //显示设定电流值
// LCD_ShowString(100,110,200,16,16,string);
g_ADCflag = 0; g_adc = 0; //标志位置0
}
// LCD_Clear(WHITE);
delay_ms(40);
}
}
void TIM3_IRQHandler(void)
{
if ( TIM_GetITStatus(TIM3 , TIM_IT_Update) != RESET )
{
if(g_adc < 50)//电流电压采集
{
V[g_adc] = ADaverage(0);
I[g_adc] = ADaverage(1);
t[g_adc] = ADaverage(2);
m[g_adc] = ADaverage(3);
g_adc++;
}
else if(g_adc >=50)
g_ADCflag = 1;
TIM_ClearITPendingBit(TIM3 , TIM_FLAG_Update);
}
}

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