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/* # I2C代码片段说明1. 本文件夹中提供的驱动代码供参赛选手完成程序设计参考。2. 参赛选手可以自行编写相关代码或以该代码为基础#xff0c;根据所选单片机类型、运行速度和试题中对单片机时钟频率的要求#xff0c;进行代码调试和修改。
*/
#include STC1… iic.c
/* # I2C代码片段说明1. 本文件夹中提供的驱动代码供参赛选手完成程序设计参考。2. 参赛选手可以自行编写相关代码或以该代码为基础根据所选单片机类型、运行速度和试题中对单片机时钟频率的要求进行代码调试和修改。
*/
#include STC15F2K60S2.H
#include iic.h
#include intrins.hsbit scl P2^0;
sbit sda P2^1;#define DELAY_TIME 5//
static void I2C_Delay(unsigned char n)
{do{_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_(); }while(n--);
}//
void I2CStart(void)
{sda 1;scl 1;I2C_Delay(DELAY_TIME);sda 0;I2C_Delay(DELAY_TIME);scl 0;
}//
void I2CStop(void)
{sda 0;scl 1;I2C_Delay(DELAY_TIME);sda 1;I2C_Delay(DELAY_TIME);
}//
void I2CSendByte(unsigned char byt)
{unsigned char i;for(i0; i8; i){scl 0;I2C_Delay(DELAY_TIME);if(byt 0x80){sda 1;}else{sda 0;}I2C_Delay(DELAY_TIME);scl 1;byt 1;I2C_Delay(DELAY_TIME);}scl 0;
}//
unsigned char I2CReceiveByte(void)
{unsigned char da;unsigned char i;for(i0;i8;i){ scl 1;I2C_Delay(DELAY_TIME);da 1;if(sda) da | 0x01;scl 0;I2C_Delay(DELAY_TIME);}return da;
}//
unsigned char I2CWaitAck(void)
{unsigned char ackbit;scl 1;I2C_Delay(DELAY_TIME);ackbit sda; scl 0;I2C_Delay(DELAY_TIME);return ackbit;
}//
void I2CSendAck(unsigned char ackbit)
{scl 0;sda ackbit; I2C_Delay(DELAY_TIME);scl 1;I2C_Delay(DELAY_TIME);scl 0; sda 1;I2C_Delay(DELAY_TIME);
}unsigned int Read_v()
{unsigned int temp;I2CStart();I2CSendByte(0x90);I2CWaitAck();I2CSendByte(0x01);I2CWaitAck();I2CStart();I2CSendByte(0x91);I2CWaitAck();temp I2CReceiveByte();I2CSendAck(1);I2CStop();return temp;
} iic.h
#ifndef __iic_h
#define __iic_hstatic void I2C_Delay(unsigned char n);
void I2CStart(void);
void I2CStop(void);
void I2CSendByte(unsigned char byt);
unsigned char I2CReceiveByte(void);
unsigned char I2CWaitAck(void);
void I2CSendAck(unsigned char ackbit);
unsigned int Read_v();#endif
onewire.c
/* # 单总线代码片段说明1. 本文件夹中提供的驱动代码供参赛选手完成程序设计参考。2. 参赛选手可以自行编写相关代码或以该代码为基础根据所选单片机类型、运行速度和试题中对单片机时钟频率的要求进行代码调试和修改。
*///
#include STC15F2K60S2.H
#include onewire.hsbit DQ P1^4;void Delay_OneWire(unsigned int t)
{unsigned char i;while(t--){for(i0;i12;i);}
}//
void Write_DS18B20(unsigned char dat)
{unsigned char i;for(i0;i8;i){DQ 0;DQ dat0x01;Delay_OneWire(5);DQ 1;dat 1;}Delay_OneWire(5);
}//
unsigned char Read_DS18B20(void)
{unsigned char i;unsigned char dat;for(i0;i8;i){DQ 0;dat 1;DQ 1;if(DQ){dat | 0x80;} Delay_OneWire(5);}return dat;
}//
bit init_ds18b20(void)
{bit initflag 0;DQ 1;Delay_OneWire(12);DQ 0;Delay_OneWire(80);DQ 1;Delay_OneWire(10); initflag DQ; Delay_OneWire(5);return initflag;
}unsigned int Read_temp()
{unsigned char LSB ,MSB;init_ds18b20();Write_DS18B20(0xcc);Write_DS18B20(0x44);init_ds18b20();Write_DS18B20(0xcc);Write_DS18B20(0xbe);LSB Read_DS18B20();MSB Read_DS18B20();return (MSB 8 | LSB ) * 0.625;
}onewire.h
#ifndef __onewire_h
#define __onewire_hvoid Delay_OneWire(unsigned int t);
void Write_DS18B20(unsigned char dat);
unsigned char Read_DS18B20(void);
bit init_ds18b20(void);
unsigned int Read_temp();#endif
ds1302.c
/* # DS1302代码片段说明1. 本文件夹中提供的驱动代码供参赛选手完成程序设计参考。2. 参赛选手可以自行编写相关代码或以该代码为基础根据所选单片机类型、运行速度和试题中对单片机时钟频率的要求进行代码调试和修改。
*/ //
#include STC15F2K60S2.H
#include ds1302.h
#include intrins.hsbit SCK P1^7;
sbit SDA P2^3;
sbit RST P1^3;code unsigned char Write_addr[] {0x80,0x82,0x84,0x86,0x88,0x8a,0x8c};
code unsigned char Read_addr[] {0x81,0x83,0x85,0x87,0x89,0x8b,0x8d};
unsigned char time[] {0x50,0x59,0x16};
void Write_Ds1302(unsigned char temp)
{unsigned char i;for (i0;i8;i) { SCK 0;SDA temp0x01;temp1; SCK1;}
} //
void Write_Ds1302_Byte( unsigned char address,unsigned char dat )
{RST0; _nop_();SCK0; _nop_();RST1; _nop_(); Write_Ds1302(address); Write_Ds1302(dat); RST0;
}//
unsigned char Read_Ds1302_Byte ( unsigned char address )
{unsigned char i,temp0x00;RST0; _nop_();SCK0; _nop_();RST1; _nop_();Write_Ds1302(address);for (i0;i8;i) { SCK0;temp1; if(SDA)temp|0x80; SCK1;} RST0; _nop_();SCK0; _nop_();SCK1; _nop_();SDA0; _nop_();SDA1; _nop_();return (temp);
}void Write_time()
{char i;Write_Ds1302_Byte(0x8e,0x00);for(i 0;i 3;i)Write_Ds1302_Byte(Write_addr[i],time[i]);Write_Ds1302_Byte(0x8e,0x80);
}void Read_time()
{char i;for(i 0;i 3;i)time[i] Read_Ds1302_Byte(Read_addr[i]);
}
ds1302.h
#ifndef __ds1302_h
#define __ds1302_hvoid Write_Ds1302(unsigned char temp) ;
void Write_Ds1302_Byte( unsigned char address,unsigned char dat ) ;
unsigned char Read_Ds1302_Byte ( unsigned char address );
void Write_time();
void Read_time();#endif
sys.c
#include STC15F2K60S2.H
#include sys.h
#include intrins.h
void Delay_ms(unsigned int t) //12.000MHz
{while(t--){unsigned char i, j;i 12;j 169;do{while (--j);} while (--i);}
}void Select_Hc573(char n)
{switch(n){case 4:P2 P2 0x1f | 0x80;break;case 5:P2 P2 0x1f | 0xa0;break;case 6:P2 P2 0x1f | 0xc0;break;case 7:P2 P2 0x1f | 0xe0;break;}P2 P2 0x1f;
}void Sys_Init()
{P0 0x00;Select_Hc573(5);P0 0xff;Select_Hc573(4);
}void Select_Bit(unsigned char pos,dat)
{P0 0x01 pos;Select_Hc573(6);P0 dat;Select_Hc573(7);Delay_ms(1);P0 0xff;Select_Hc573(7);
}
sys.h
#ifndef __sys_h
#define __sys_hvoid Delay_ms(unsigned int t);
void Select_Hc573(char n);
void Sys_Init();
void Select_Bit(unsigned char pos,dat);#endif
main.c
#include STC15F2K60S2.H
#include ds1302.h
#include iic.h
#include onewire.h
#include sys.hsbit R1 P3^0;
sbit R2 P3^1;
sbit R3 P3^2;
sbit R4 P3^3;
sbit C1 P4^4;
sbit C2 P4^2;
sbit C3 P3^5;
sbit C4 P3^4;code unsigned char SMG[] { ~0x3F,~0x06,~0x5B,~0x4F,~0x66,~0x6D,~0x7D,~0x07,~0x7F,~0x6F,~0x71,~0x76};
extern unsigned char time[];
unsigned int temp;//温度
unsigned int v;//电压
bit v_stata;// 1-亮 0-暗
bit flag_500ms;
bit flag_10ms;
unsigned char count1;
unsigned int count2,count3;
char param_time 17;//时间参数
char param_temp 25;//温度参数
char param_led 4;//led参数
unsigned char key_val;//键值
bit mode;//0-数据界面 1-参数界面
unsigned char mode_dat;//0-时间 1-温度 2-亮暗状态
unsigned char mode_param;//0-时间 1-温度 2-LED
bit L3_flag;// 0-灭 1-亮void Display_time()//时间界面
{Select_Bit(0,SMG[time[2] / 16]);Select_Bit(1,SMG[time[2] % 16]);Select_Bit(2,SMG[0]);Select_Bit(3,SMG[time[1] / 16]);Select_Bit(4,SMG[time[1] % 16]);Select_Bit(5,SMG[0]);Select_Bit(6,SMG[time[0] / 16]);Select_Bit(7,SMG[time[0] % 16]);
}void Display_temp()//温度界面
{Select_Bit(0,SMG[10]);Select_Bit(5,SMG[temp / 100]);Select_Bit(6,SMG[temp / 10 % 10] - 0x80);Select_Bit(7,SMG[temp % 10]);
}void Display_v()//亮暗状态显示
{Select_Bit(0,SMG[11]);Select_Bit(2,SMG[v / 100] - 0x80);Select_Bit(3,SMG[v / 10 % 10]);Select_Bit(4,SMG[v % 10]);Select_Bit(7,SMG[v_stata]);
}void Display_param_time()//时间参数界面
{Select_Bit(0,SMG[5]);Select_Bit(1,SMG[4]);Select_Bit(6,SMG[param_time / 10]);Select_Bit(7,SMG[param_time % 10]);
}void Display_param_temp()//温度参数界面
{Select_Bit(0,SMG[5]);Select_Bit(1,SMG[5]);Select_Bit(6,SMG[param_temp / 10]);Select_Bit(7,SMG[param_temp % 10]);
}void Display_param_led()//指示灯参数界面
{Select_Bit(0,SMG[5]);Select_Bit(1,SMG[6]);Select_Bit(7,SMG[param_led]);
}void Timer2Init(void) //10毫秒12.000MHz
{AUXR 0xFB; //定时器时钟12T模式T2L 0xF0; //设置定时初值T2H 0xD8; //设置定时初值AUXR | 0x10; //定时器2开始计时IE2 1 2;EA 1;
}void Timer2_isr() interrupt 12
{if(count1 50){count1 0;flag_500ms 1;//光敏电阻半秒刷新}flag_10ms 1;//按键扫描刷新if(!v_stata)//L3判断{if(count2 300){count2 0;L3_flag 1;}count3 0;}else{count2 0;if(count3 300){count3 0;L3_flag 0;}}
}unsigned char Key_Scan()//按键扫描函数
{unsigned char temp 0;static unsigned char cnt4 0;static unsigned char cnt5 0;static unsigned char cnt8 0;static unsigned char cnt9 0;if(flag_10ms){R3 0;R1 R2 R4 C1 C2 C3 C4 1;if(C1 0) cnt5;if(C1 1){if(cnt5 2) temp 5;cnt5 0;}if(C2 0) cnt9;if(C2 1){if(cnt9 2) temp 9;cnt9 0;}R4 0;R1 R2 R3 C1 C2 C3 C4 1;if(C1 0) cnt4;if(C1 1){if(cnt4 2) temp 4;cnt4 0;}if(C2 0) cnt8;if(C2 1){if(cnt8 2) temp 8;cnt8 0;}flag_10ms 0;}return temp;
}void Key_Pro()
{switch(key_val){case 4:mode ^ 1;if(!mode) mode_param 0;else mode_dat 0;break;case 5:if(!mode){if(mode_dat 2)mode_dat 0;}else{if(mode_param 2)mode_param 0;}break;case 8:if(mode){switch(mode_param){case 0:if(--param_time 0)param_time 23;break;case 1:if(--param_temp 0)param_temp 99;break;case 2:if(--param_led 4)param_led 8;break;}}break;case 9:if(mode){switch(mode_param){case 0:if(param_time 23)param_time 0;break;case 1:if(param_temp 99)param_temp 0;break;case 2:if(param_led 8)param_led 4;break;}}break;}
}void Led(unsigned char addr,enable)//LED底层代码
{static unsigned char temp 0x00;static unsigned char temp_old 0xff;if(enable) temp | 0x01 addr;else temp ~(0x01 addr);if(temp ! temp_old){P0 ~temp;Select_Hc573(4);temp_old temp;}
}void Led_Pro()//LED控制代码
{if(param_time time[2] / 16 * 10 time[2] % 16) Led(0,1);else Led(0,0);if(((float)temp) / 10 param_temp) Led(1,1);else Led(1,0);if(L3_flag) Led(2,1);else Led(2,0);if(!v_stata){switch(param_led){case 4:Led(3,1);Led(4,0);Led(5,0);Led(6,0);Led(7,0);break;case 5:Led(4,1);Led(3,0);Led(5,0);Led(6,0);Led(7,0);break;case 6:Led(5,1);Led(4,0);Led(3,0);Led(6,0);Led(7,0);break;case 7:Led(6,1);Led(4,0);Led(5,0);Led(3,0);Led(7,0);break;case 8:Led(7,1);Led(4,0);Led(5,0);Led(6,0);Led(3,0);break;}}else{Led(3,0);Led(4,0);Led(5,0);Led(6,0);Led(7,0);}
}void main()
{Sys_Init();//系统初始化关闭继电器和蜂鸣器Read_temp();//读取温度延时750ms以消除上电显示85Delay_ms(750);Write_time();//初始化写入时间Timer2Init();//定时器2初始化while(1){temp Read_temp();//读取温度Read_time();//读取时间if(flag_500ms)//半秒读取一次光敏电阻电压{flag_500ms 0;v Read_v() / 51.0 * 100;}if(v 150) v_stata 1;else v_stata 0;key_val Key_Scan();//读取键值Key_Pro();//按键处理函数Led_Pro();//LED处理函数if(!mode)//0-数据界面 1-参数界面{switch(mode_dat)//0-时间界面 1-温度界面 2-亮暗状态界面{case 0:Display_time();break;case 1:Display_temp();break;case 2:Display_v();break;}}else//参数界面下{switch(mode_param)//0-时间参数界面 1-温度参数界面 2-LED参数界面{case 0:Display_param_time();break;case 1:Display_param_temp();break;case 2:Display_param_led();break;}}}
}
