基于STM32的程控电子负载电路图与源码设计 -

#include "stm32f10x.h"
#include "delay.h"
#include "adc.h"
#include "oled.h"
#include "DAC.h"
#include "key.h"
#include "usart.h"
#include "24cxx.h"
void oled_show(int a);
int main(void)
{
float adc1,u1;
float set_I = 100,u,I,R = 2.71,set_R = 100,set_P = 1.00,temp;
u16 key, i =0,j=0;
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
uart_init(115200); //串口初始化为115200
Adc1_Init();
Dac1_Init();
delay_init(); //延时函数初始化
KEY_Init();
OLED_Init();
OLED_Clear();
delay_init();
AT24CXX_Init();
while(1)
{
oled_show(0);
key =KEY_Scan(0);
if (key ==KEY0_PRES)//恒流模式
{
OLED_Clear();
oled_show(1);
while(1)
{
adc1 = Get_Adc1_Average(ADC_Channel_1, 10);
u1 = adc1/4096*3.3/0.99*10.993;
key =KEY_Scan(0);
if (key ==WKUP_PRES)
{
set_I = set_I+10;
if (set_I>1000) set_I =1000;
}
if (key ==KEY1_PRES)
{
set_I = set_I-10;
if (set_I<100) set_I =100;
}
u =set_I/1000*R;
Dac1_Set_Vol(u*1000);
if (key ==KEY2_PRES)
{
temp =u*100;
AT24CXX_WriteLenByte(0+4*i,temp,4);
i++;if (i == 10) i = 0;
}
if (key ==KEY0_PRES)
{
temp = AT24CXX_ReadLenByte(0+4*j,4);
temp = temp/100;
OLED_ShowUnFloat(90, 6, temp, 2, 2, 12);
j++;if (j == 10) j = 0;
}
I = u/R*1000;
OLED_ShowUnFloat(30, 2, u1, 2, 4, 12);
OLED_ShowUnNum(40, 4, set_I, 4,12);
OLED_ShowUnFloat(40, 6, u, 2, 2, 12);
OLED_ShowUnNum(40, 7, I, 4, 12);
}
}
if (key ==KEY1_PRES)//恒阻模式
{
OLED_Clear();
oled_show(2);
while(1)
{
adc1 = Get_Adc1_Average(ADC_Channel_1, 10);
u1 = adc1/4096*3.3/0.99*10.993;
key =KEY_Scan(0);
if (key ==WKUP_PRES)
{
set_R = set_R+1000;
if (set_R >10000) set_R =10000;
}
if (key ==KEY1_PRES)
{
set_R = set_R-1000;
if (set_R <15) set_R = 15;
}
if (key ==KEY2_PRES)
{
temp =u*100;
AT24CXX_WriteLenByte(0+4*i,temp,4);
i++;if (i == 10) i = 0;
}
if (key ==KEY0_PRES)
{
temp = AT24CXX_ReadLenByte(0+4*j,4);
temp = temp/100;
OLED_ShowUnFloat(90, 6, temp, 2, 2, 12);
j++;if (j == 10) j = 0;
}
u = u1/set_R*R;
Dac1_Set_Vol(u*1000);
I = u/R*1000;
OLED_ShowUnFloat(30, 2, u1, 2, 4, 12);
OLED_ShowUnNum(40, 4, set_R, 5,12);
OLED_ShowUnFloat(40, 6, u, 2, 2, 12);
OLED_ShowUnNum(40, 7, I, 4, 12);
}
}
if (key ==KEY2_PRES)//恒功率模式
{
OLED_Clear();
oled_show(3);
while(1)
{
adc1 = Get_Adc1_Average(ADC_Channel_1, 10);
u1 = adc1/4096*3.3/0.99*10.993;
key =KEY_Scan(0);
if (key ==WKUP_PRES)
{
set_P = set_P+1.00;
if (set_P > 30.00) set_P = 30.00;
}
if (key ==KEY1_PRES)
{
set_P = set_P-1.00;
if (set_P < 1.00) set_P = 1.00;
}
if (key ==KEY2_PRES)
{
temp =u*100;
AT24CXX_WriteLenByte(0+4*i,temp,4);
i++;if (i == 10) i = 0;
}
if (key ==KEY0_PRES)
{
temp = AT24CXX_ReadLenByte(0+4*j,4);
temp = temp/100;
OLED_ShowUnFloat(90, 6, temp, 2, 2, 12);
j++;if (j == 10) j = 0;
}
u = set_P/u1*R;
Dac1_Set_Vol(u*1000);
I = u/R*1000;
OLED_ShowUnFloat(30, 2, u1, 2, 4, 12);
OLED_ShowUnFloat(40, 4, set_P,2,2,12);
OLED_ShowUnFloat(40, 6, u, 2, 2, 12);
OLED_ShowUnNum(40, 7, I, 4, 12);
}
}
}
}
void oled_show(int a)
{
if (a == 0)
{
OLED_ShowCHinese(17,0,0);
OLED_ShowCHinese(34,0,1);
OLED_ShowCHinese(50,0,2);
OLED_ShowCHinese(67,0,3);
OLED_ShowCHinese(17,3,0);
OLED_ShowCHinese(34,3,4);
OLED_ShowCHinese(50,3,2);
OLED_ShowCHinese(67,3,3);
OLED_ShowCHinese(17,6,0);
OLED_ShowCHinese(34,6,5);
OLED_ShowCHinese(50,6,6);
OLED_ShowCHinese(67,6,2);
OLED_ShowCHinese(84,6,3);
}
if (a == 1)
{
OLED_ShowCHinese(0,0,0);
OLED_ShowCHinese(17,0,1);
OLED_ShowCHinese(34,0,2);
OLED_ShowCHinese(50,0,3);
OLED_ShowString(0,2, "Uin= V",12);
OLED_ShowString(0,4, "Iset= mA",12);
OLED_ShowString(0,6, "Uout= V",12);
OLED_ShowString(0,7, " I = mA",12);
}
if (a == 2)
{
OLED_ShowCHinese(0,0,0);
OLED_ShowCHinese(17,0,4);
OLED_ShowCHinese(34,0,2);
OLED_ShowCHinese(50,0,3);
OLED_ShowString(0,2, "Uin= V",12);
OLED_ShowString(0,4, "Rset= R",12);
OLED_ShowString(0,6, "Uout= V",12);
OLED_ShowString(0,7, " I = mA",12);
}
if (a == 3)
{
OLED_ShowCHinese(0,0,0);
OLED_ShowCHinese(17,0,5);
OLED_ShowCHinese(34,0,6);
OLED_ShowCHinese(50,0,2);
OLED_ShowCHinese(67,0,3);
OLED_ShowString(0,2, "Uin= V",12);
OLED_ShowString(0,4, "Pset= W",12);
OLED_ShowString(0,6, "Uout= V",12);
OLED_ShowString(0,7, " I = mA",12);
}
}

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