一、题目要求
二、代码展示
#include <STC15F2K60S2.h> #include "iic.h" #define uchar unsigned char #define uint unsigned int uchar code SMG_duanma[18] = {0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90, 0x88,0x80,0xc6,0xc0,0x86,0x8e, 0xbf,0x7f};//分别是0-9（对应下标），A-F，“-”，“.” //分别是“0.-9.” uchar code SMG_Dot_AC[10] = {0X40,0X79,0X24,0X30,0X19,0X12,0X02,0X78,0X00,0X10}; uint time_001s = 0; uchar guang = 0; //系统初始化 void Initsys(); //配置HC138 void SelectHC138(uchar channel); //在pos位码上，显示value段码 void DisplaySMG_Bit(uchar pos, uchar value); //数码管8位码显示 void SMG_Display(); //数码管的延时 void Delay_one_ms_SMG(); //独立按键(BTN) void Alone_Key(); //按键消抖延时 void Delay_five_ms_Key(); //矩阵键盘(KBD) //void Matrix_Key(); //定时器初始化 void InitTimer0(); //售水机出水 void Mod_1_Strat(); //售水机停水 void Mod_2_Stop(); //PCF8591 uchar IIC_read(uchar add); //光感处理 void Light_Check(); void main() { Initsys(); InitTimer0(); while(1) { Light_Check(); //Matrix_Key(); Alone_Key(); //SMG_Display(); } } //光感处理 void Light_Check() { guang = IIC_read(0X01); if(guang < 64) { SelectHC138(4); P0 = 0XFE; } else { SelectHC138(4); P0 = 0XFF; } } //售水机出水 void Mod_1_Strat() { SelectHC138(5); P0 = 0X10; while(1) { Light_Check(); SMG_Display(); Alone_Key(); if(time_001s == 99999) { Mod_2_Stop(); break; } } } //售水机停水 void Mod_2_Stop() { EA = 0; SelectHC138(5); P0 = 0X00; time_001s = time_001s / 2; while(1) { Light_Check(); SMG_Display(); } } //定时器初始化 void InitTimer0() { TMOD = 0x01; TH0 = (65535 - 10000) / 256; TL0 = (65535 - 10000) % 256; ET0 = 1; EA = 1; TR0 = 1; } //定时器服务 void ServiceTimer0() interrupt 1 { TH0 = (65535 - 10000) / 256; TL0 = (65535 - 10000) % 256; time_001s++; } //按键消抖延时 void Delay_five_ms_Key() { uint i,j; for(i = 0; i < 5; i++) for(j = 845; j > 0; j--); } //独立按键(BTN) void Alone_Key() { //S7按键 if(P30 == 0) { Delay_five_ms_Key(); if(P30 == 0) { Mod_1_Strat(); } while(!P30) { Light_Check(); SMG_Display(); } } //S6按键 else if(P31 == 0) { Delay_five_ms_Key(); if(P31 == 0) { Light_Check(); Mod_2_Stop(); } while(!P31) { SMG_Display(); } } } //配置HC138 void SelectHC138(uchar channel) { switch(channel) { case 4: //LED P2 = (P2 & 0X1F) | 0X80; break; case 5: //蜂鸣器和继电器 P2 = (P2 & 0X1F) | 0Xa0; break; case 6: //位码 P2 = (P2 & 0X1F) | 0Xc0; break; case 7: //段码 P2 = (P2 & 0X1F) | 0Xe0; break; case 0: //锁住所有寄存器 P2 = (P2 & 0X1F) | 0X00; break; } } //系统初始化 void Initsys() { SelectHC138(5); P0 = 0X00;//关闭蜂鸣器和继电器 SelectHC138(4); P0 = 0XFF;//关闭LED SelectHC138(6); P0 = 0XFF; //选择所有数码管 SelectHC138(7); P0 = 0XFF; //关闭所有数码管 } //在pos位码上，显示value段码 void DisplaySMG_Bit(uchar pos, uchar value) { SelectHC138(6); P0 = 0X01 << pos; SelectHC138(7); P0 = value; } //数码管8位码显示 void SMG_Display() { DisplaySMG_Bit(1, SMG_Dot_AC[0]); Delay_one_ms_SMG(); DisplaySMG_Bit(2, SMG_duanma[5]); Delay_one_ms_SMG(); DisplaySMG_Bit(3, SMG_duanma[0]); Delay_one_ms_SMG(); DisplaySMG_Bit(4, SMG_duanma[time_001s / 10000]); Delay_one_ms_SMG(); DisplaySMG_Bit(5, SMG_Dot_AC[time_001s % 10000 / 1000]); Delay_one_ms_SMG(); DisplaySMG_Bit(6, SMG_duanma[time_001s % 1000 / 100]); Delay_one_ms_SMG(); DisplaySMG_Bit(7, SMG_duanma[time_001s % 100 / 10]); Delay_one_ms_SMG(); } //数码管的延时 void Delay_one_ms_SMG() { uint j; for(j = 845; j > 0; j--); } //PCF8591 uchar IIC_read(uchar add) { uchar temp; IIC_Start(); IIC_SendByte(0X90); IIC_WaitAck(); IIC_SendByte(add); IIC_WaitAck(); IIC_Stop(); IIC_Start(); IIC_SendByte(0X91); IIC_WaitAck(); temp = IIC_RecByte(); IIC_Stop(); return temp; } /* //矩阵键盘(KBD) void Matrix_Key() { uchar temp; //第一列 P3 = 0X7F;P44 = 0; P42 = 1; temp = P3; temp = temp & 0X0F; if(temp != 0X0F) { Delay_five_ms_Key(); temp = P3; temp = temp & 0X0F; if(temp != 0X0F) { temp = P3; switch(temp) { case 0X7E: DisplaySMG_Bit(0, SMG_duanma[1]); break; case 0X7D: DisplaySMG_Bit(1, SMG_duanma[1]); break; case 0X7B: DisplaySMG_Bit(2, SMG_duanma[1]); break; case 0X77: DisplaySMG_Bit(3, SMG_duanma[1]); break; } while(temp != 0X0F) { temp = P3; temp = temp & 0X0F; } } } //第二列 P3 = 0XBF;P44 = 1; P42 = 0; temp = P3; temp = temp & 0X0F; if(temp != 0X0F) { Delay_five_ms_Key(); temp = P3; temp = temp & 0X0F; if(temp != 0X0F) { temp = P3; switch(temp) { case 0XBE: DisplaySMG_Bit(0, SMG_duanma[2]); break; case 0XBD: DisplaySMG_Bit(1, SMG_duanma[2]); break; case 0XBB: DisplaySMG_Bit(2, SMG_duanma[2]); break; case 0XB7: DisplaySMG_Bit(3, SMG_duanma[2]); break; } while(temp != 0X0F) { temp = P3; temp = temp & 0X0F; } } } //第三列 P3 = 0XDF;P44 = 1; P42 = 1; temp = P3; temp = temp & 0X0F; if(temp != 0X0F) { Delay_five_ms_Key(); temp = P3; temp = temp & 0X0F; if(temp != 0X0F) { temp = P3; switch(temp) { case 0XDE: DisplaySMG_Bit(0, SMG_duanma[3]); break; case 0XDD: DisplaySMG_Bit(1, SMG_duanma[3]); break; case 0XDB: DisplaySMG_Bit(2, SMG_duanma[3]); break; case 0XD7: DisplaySMG_Bit(3, SMG_duanma[3]); break; } while(temp != 0X0F) { temp = P3; temp = temp & 0X0F; } } } //第四列 P3 = 0XEF;P44 = 1; P42 = 1; temp = P3; temp = temp & 0X0F; if(temp != 0X0F) { Delay_five_ms_Key(); temp = P3; temp = temp & 0X0F; if(temp != 0X0F) { temp = P3; switch(temp) { case 0XEE: DisplaySMG_Bit(0, SMG_duanma[4]); break; case 0XED: DisplaySMG_Bit(1, SMG_duanma[4]); break; case 0XEB: DisplaySMG_Bit(2, SMG_duanma[4]); break; case 0XE7: DisplaySMG_Bit(3, SMG_duanma[4]); break; } while(temp != 0X0F) { temp = P3; temp = temp & 0X0F; } } } } */
三、注意事项
1.define 换行时，要加\
2.使用我写的模板DisplaySMG_Bit第二个输入参数，记得要用开头定义的数组
3.iic,c文件中，要8-12倍延时
