STC8G1K08-ADC读取3路MT9223，电流采样

#include <STC8G.H> #include "stdio.h" #include "intrins.h" #include "uart.h" #include "led.h" #include "main.h" #include "ADC.h" #include "EEPROM.h" #include "delay.h" #include "Tim.h" #include "crc.h" #define CKSEL (*(unsigned char volatile xdata *)0xfe00) #define CLKDIV (*(unsigned char volatile xdata *)0xfe01) #define HIRCCR (*(unsigned char volatile xdata *)0xfe02) #define XOSCCR (*(unsigned char volatile xdata *)0xfe03) #define IRC32KCR (*(unsigned char volatile xdata *)0xfe04) #define ADC_CH_NUM 3 bit busy; int working_vcc=0; unsigned char RX_State=0; int ADC_nowmax[3]={0}; int ADC_Max[3]={0}; int circle_check=0; int ADC_flag=0; int ADC_count = 0; int ADC_Max_Value=0; char ADC_Max_buffer[3]=0; unsigned char channel_flag=0; unsigned char limit_current[3]={0}; unsigned short tim_flag = 0; unsigned char tim_task = 0; float current_t[3]=0; extern unsigned char send_frame[11]; extern unsigned char answer_frame[11]; extern unsigned char USART2_RXD_frame_index; extern unsigned char USART2_RXD_frame_buffer[USART1_TXD_BUFFER_LENGTH]; extern unsigned char USART2_RXD_frame_complete; extern unsigned char RTC[4]; unsigned char current_state[3]={0}; unsigned char light_flag[3]={0}; unsigned char light_interupt_flag=0; unsigned char light_count=0; //重写putchar函数 char putchar(char c) { send_char(c); return c; } void ADC_num_to_current(int *ADC) { int j=0; float volt = 0; for(j=0;j<3;j++) { volt = (((ADC[j]-19)/1024.0)*working_vcc); current_t[j]=1.057*(((volt-(working_vcc/2))/(80*1.4142))*1000+800); if(current_t[j]<=200) current_t[j]=0; } } void Delay1000ms() //@11.0592MHz { unsigned char i, j, k; i = 57; j = 27; k = 112; do { do { while (--k); } while (--j); } while (--i); } void main() { int i=0; GPIO_Init(); working_vcc = Get_working_vcc(); //ADC 初始化 LED_Init(); UART2_Init(); ADC_Init(); for(i=0;i<3;i++) { limit_current[i]=Read_IAP(0x0200+i); } while (1) { //调试打印 // Delay1000ms(); // printf("%d \n\r ",working_vcc); // if(tim_task == 1)//20s // { // tim_task=0; // stc_send_processing(); // } if(ADC_flag == 1) { ADC_flag = 0; ADC_count = 0; ADC_num_to_current(ADC_Max); for(i=0;i<3;i++) { if(current_t[i]>limit_current[i]) { stc_fast_send(); switch(i) { case 0: LED1_G = 0; light_flag[0]=1; break; case 1: LED2_G = 0; light_flag[1]=1; break; case 2: LED3_G = 0; light_flag[2]=1; break; } } } for(i=0;i<3;i++) { printf("%f ",current_t[i]); } for(i=0;i<3;i++) { ADC_Max[i]=0; } ADC_CONTR |= 0x40; //继续 AD 转换 } if(USART2_RXD_frame_complete) { if(USART2_RXD_frame_buffer[0]==0x01) { switch(USART2_RXD_frame_buffer[1]) { case 0x71: RTC[0]=USART2_RXD_frame_buffer[2]; RTC[1]=USART2_RXD_frame_buffer[3]; RTC[2]=USART2_RXD_frame_buffer[4]; RTC[3]=USART2_RXD_frame_buffer[5]; current_state[0]=USART2_RXD_frame_buffer[6]; current_state[1]=USART2_RXD_frame_buffer[7]; current_state[2]=USART2_RXD_frame_buffer[8]; for(i=0;i<3;i++) { if(current_state[i]==0) { light_flag[i]=2; } } break; case 0x21: Get_Answer_Frame(); send_string(answer_frame); Sector_Erase_IAP(0x0200); for(i=0;i<3;i++) { Write_IAP(*(USART2_RXD_frame_buffer+3+i),0x0200+i); } break; default: break; } } for(i=0;i<USART1_TXD_BUFFER_LENGTH;i++) { USART2_RXD_frame_buffer[i]=0; } USART2_RXD_frame_index=0; USART2_RXD_frame_complete=0; } } } void TM0_Isr() interrupt 1 { tim_flag++; for(light_interupt_flag=0;light_interupt_flag<3;light_interupt_flag++) { switch(light_flag[light_interupt_flag])//模式标志位 { case 1://过流闪烁 switch(light_interupt_flag) { case 0: LED1_R=!LED1_R; break; case 1: LED2_R=!LED2_R; break; case 2: LED3_R=!LED3_R; break; } break; case 2://关闭后闪烁2~3s if(light_count<3) { switch(light_interupt_flag) { case 0: LED1_R=!LED1_R; break; case 1: LED2_R=!LED2_R; break; case 2: LED3_R=!LED3_R; break; } light_count++; } else { light_count=0; light_flag[light_interupt_flag]=0; switch(light_interupt_flag) { case 0: LED1_R=0; LED1_G=1; break; case 1: LED2_R=0; LED2_G=1; break; case 3: LED3_R=0; LED3_G=1; break; } } break; default : break; } } if(tim_flag == 200) { tim_flag=0; tim_task =1; } } /* 1.注意每进一次中断，只能读取一个通道的ADC（无法在一次中断中读取三个通道的ADC）！！！ 2.如果增加通道仅需要修改ADC_CH_NUM，channel_flag这个数组; 例如，4个通道 ADC_CH_NUM=4 channel_flag[4]={0,1,2,3};channel_flag数组值必须从0开始 */ void ADC_Isr() interrupt 5 { ADC_CONTR &= ~0x20; //清中断标志 for(circle_check = 0;circle_check<ADC_CH_NUM;circle_check++) { if(channel_flag == circle_check) { ADC_nowmax[channel_flag]=ADC_RES << 8 | ADC_RESL; //读取 ADC 结果 if(ADC_Max[channel_flag]<ADC_nowmax[channel_flag]) ADC_Max[channel_flag]=ADC_nowmax[channel_flag]; //printf("%d ",ADC_Max[channel_flag]); switch(channel_flag) { case 0: P1M0 = 0x00; P1M1 = 0x02;//设置 P1.1为 ADC 口 ADC_CONTR|=0x01; ADC_CONTR&=~0x0E;//1110 break; case 1: P1M0 = 0x00; P1M1 = 0x00;//设置 P1.1为 ADC 口 P3M0 = 0x00; P3M1 = 0x40;//设置 P1.1为 ADC 口 ADC_CONTR|=0x0E; ADC_CONTR&=~0x01; break; case 2: P3M0 = 0x00; P3M1 = 0x00;//设置 P1.1为 ADC 口 P1M0 = 0x00; P1M1 = 0x01;//设置 P1.1为 ADC 口 ADC_CONTR&=~0x0F; break; } break; } } channel_flag++; if(channel_flag ==3) { channel_flag=0; ADC_count++; } if(ADC_count == 285) ADC_flag=1; else ADC_CONTR |= 0x40; //继续 AD 转换 }