#include "stm8s.h"   
#include "hall.h"
#include "OLED12864.h"

#define STM8_FREQ_MHZ 16
#define PWM_FREQUENCY 16000

static const u16 hArrPwmVal = ((u16)((STM8_FREQ_MHZ * (u32)1000000)/PWM_FREQUENCY));
//PWM信号周期
//hArrPwmVal=1000

#define MINPWMPERCENT 10
#define MAXPWMPERCENT 90
#define MINVALUE MINPWMPERCENT*10
//hArrPwmVal=1000
//MINPWMPERCENT*hArrPwmVal/100简化为MINPWMPERCENT*10
#define MAXVALUE MAXPWMPERCENT*10
//MAXPWMPERCENT*hArrPwmVal/100简化MAXPWMPERCENT*10

unsigned char ADChan=0;
//0-9:采集电位器，10-19：采集电流

#define MCUVref 5000
//参考电压，mV为单位
#define RS (float)1
//电流的采样电阻，以欧为单位
#define AP 4
//电流放大增益

#define CC (float)MCUVref/1024/AP/RS
//电流计算常数，计算结果以MA为单位

unsigned int DIin=0;
//电流偏置转换值

#define ISh 180
//ma为单位，过流停机保护值
#define NumErr 30
//连续3次过流，作停机保护

unsigned char ErCount=0;//过流次数计算


此帖出自小平头技术问答