各位CSDN的uu们你们好呀,小雅兰又来啦,刚刚学完静态数码管显示和动态数码管显示,感觉真不错呢,下面,小雅兰就要开始学习模块化编程以及LCD1602调试工具的知识了,让我们进入51单片机的世界吧!!!
模块化编程
LCD1602调试工具
模块化编程
右键点击Open document <REGX52.H> ,就会显示出此头文件的内容,这句代码的意思也就是把这部分内容拷贝到此文件下
/*--------------------------------------------------------------------------
AT89X52.HHeader file for the low voltage Flash Atmel AT89C52 and AT89LV52.
Copyright (c) 1988-2002 Keil Elektronik GmbH and Keil Software, Inc.
All rights reserved.
--------------------------------------------------------------------------*/#ifndef __AT89X52_H__
#define __AT89X52_H__/*------------------------------------------------
Byte Registers
------------------------------------------------*/
sfr P0 = 0x80;
sfr SP = 0x81;
sfr DPL = 0x82;
sfr DPH = 0x83;
sfr PCON = 0x87;
sfr TCON = 0x88;
sfr TMOD = 0x89;
sfr TL0 = 0x8A;
sfr TL1 = 0x8B;
sfr TH0 = 0x8C;
sfr TH1 = 0x8D;
sfr P1 = 0x90;
sfr SCON = 0x98;
sfr SBUF = 0x99;
sfr P2 = 0xA0;
sfr IE = 0xA8;
sfr P3 = 0xB0;
sfr IP = 0xB8;
sfr T2CON = 0xC8;
sfr T2MOD = 0xC9;
sfr RCAP2L = 0xCA;
sfr RCAP2H = 0xCB;
sfr TL2 = 0xCC;
sfr TH2 = 0xCD;
sfr PSW = 0xD0;
sfr ACC = 0xE0;
sfr B = 0xF0;/*------------------------------------------------
P0 Bit Registers
------------------------------------------------*/
sbit P0_0 = 0x80;
sbit P0_1 = 0x81;
sbit P0_2 = 0x82;
sbit P0_3 = 0x83;
sbit P0_4 = 0x84;
sbit P0_5 = 0x85;
sbit P0_6 = 0x86;
sbit P0_7 = 0x87;/*------------------------------------------------
PCON Bit Values
------------------------------------------------*/
#define IDL_ 0x01#define STOP_ 0x02
#define PD_ 0x02 /* Alternate definition */#define GF0_ 0x04
#define GF1_ 0x08
#define SMOD_ 0x80/*------------------------------------------------
TCON Bit Registers
------------------------------------------------*/
sbit IT0 = 0x88;
sbit IE0 = 0x89;
sbit IT1 = 0x8A;
sbit IE1 = 0x8B;
sbit TR0 = 0x8C;
sbit TF0 = 0x8D;
sbit TR1 = 0x8E;
sbit TF1 = 0x8F;/*------------------------------------------------
TMOD Bit Values
------------------------------------------------*/
#define T0_M0_ 0x01
#define T0_M1_ 0x02
#define T0_CT_ 0x04
#define T0_GATE_ 0x08
#define T1_M0_ 0x10
#define T1_M1_ 0x20
#define T1_CT_ 0x40
#define T1_GATE_ 0x80#define T1_MASK_ 0xF0
#define T0_MASK_ 0x0F/*------------------------------------------------
P1 Bit Registers
------------------------------------------------*/
sbit P1_0 = 0x90;
sbit P1_1 = 0x91;
sbit P1_2 = 0x92;
sbit P1_3 = 0x93;
sbit P1_4 = 0x94;
sbit P1_5 = 0x95;
sbit P1_6 = 0x96;
sbit P1_7 = 0x97;sbit T2 = 0x90; /* External input to Timer/Counter 2, clock out */
sbit T2EX = 0x91; /* Timer/Counter 2 capture/reload trigger & dir ctl *//*------------------------------------------------
SCON Bit Registers
------------------------------------------------*/
sbit RI = 0x98;
sbit TI = 0x99;
sbit RB8 = 0x9A;
sbit TB8 = 0x9B;
sbit REN = 0x9C;
sbit SM2 = 0x9D;
sbit SM1 = 0x9E;
sbit SM0 = 0x9F;/*------------------------------------------------
P2 Bit Registers
------------------------------------------------*/
sbit P2_0 = 0xA0;
sbit P2_1 = 0xA1;
sbit P2_2 = 0xA2;
sbit P2_3 = 0xA3;
sbit P2_4 = 0xA4;
sbit P2_5 = 0xA5;
sbit P2_6 = 0xA6;
sbit P2_7 = 0xA7;/*------------------------------------------------
IE Bit Registers
------------------------------------------------*/
sbit EX0 = 0xA8; /* 1=Enable External interrupt 0 */
sbit ET0 = 0xA9; /* 1=Enable Timer 0 interrupt */
sbit EX1 = 0xAA; /* 1=Enable External interrupt 1 */
sbit ET1 = 0xAB; /* 1=Enable Timer 1 interrupt */
sbit ES = 0xAC; /* 1=Enable Serial port interrupt */
sbit ET2 = 0xAD; /* 1=Enable Timer 2 interrupt */sbit EA = 0xAF; /* 0=Disable all interrupts */
/*------------------------------------------------
P3 Bit Registers (Mnemonics & Ports)
------------------------------------------------*/
sbit P3_0 = 0xB0;
sbit P3_1 = 0xB1;
sbit P3_2 = 0xB2;
sbit P3_3 = 0xB3;
sbit P3_4 = 0xB4;
sbit P3_5 = 0xB5;
sbit P3_6 = 0xB6;
sbit P3_7 = 0xB7;sbit RXD = 0xB0; /* Serial data input */
sbit TXD = 0xB1; /* Serial data output */
sbit INT0 = 0xB2; /* External interrupt 0 */
sbit INT1 = 0xB3; /* External interrupt 1 */
sbit T0 = 0xB4; /* Timer 0 external input */
sbit T1 = 0xB5; /* Timer 1 external input */
sbit WR = 0xB6; /* External data memory write strobe */
sbit RD = 0xB7; /* External data memory read strobe *//*------------------------------------------------
IP Bit Registers
------------------------------------------------*/
sbit PX0 = 0xB8;
sbit PT0 = 0xB9;
sbit PX1 = 0xBA;
sbit PT1 = 0xBB;
sbit PS = 0xBC;
sbit PT2 = 0xBD;/*------------------------------------------------
T2CON Bit Registers
------------------------------------------------*/
sbit CP_RL2= 0xC8; /* 0=Reload, 1=Capture select */
sbit C_T2 = 0xC9; /* 0=Timer, 1=Counter */
sbit TR2 = 0xCA; /* 0=Stop timer, 1=Start timer */
sbit EXEN2= 0xCB; /* Timer 2 external enable */
sbit TCLK = 0xCC; /* 0=Serial clock uses Timer 1 overflow, 1=Timer 2 */
sbit RCLK = 0xCD; /* 0=Serial clock uses Timer 1 overflow, 1=Timer 2 */
sbit EXF2 = 0xCE; /* Timer 2 external flag */
sbit TF2 = 0xCF; /* Timer 2 overflow flag *//*------------------------------------------------
T2MOD Bit Values
------------------------------------------------*/
#define DCEN_ 0x01 /* 1=Timer 2 can be configured as up/down counter */
#define T2OE_ 0x02 /* Timer 2 output enable *//*------------------------------------------------
PSW Bit Registers
------------------------------------------------*/
sbit P = 0xD0;
sbit F1 = 0xD1;
sbit OV = 0xD2;
sbit RS0 = 0xD3;
sbit RS1 = 0xD4;
sbit F0 = 0xD5;
sbit AC = 0xD6;
sbit CY = 0xD7;/*------------------------------------------------
Interrupt Vectors:
Interrupt Address = (Number * 8) + 3
------------------------------------------------*/
#define IE0_VECTOR 0 /* 0x03 External Interrupt 0 */
#define TF0_VECTOR 1 /* 0x0B Timer 0 */
#define IE1_VECTOR 2 /* 0x13 External Interrupt 1 */
#define TF1_VECTOR 3 /* 0x1B Timer 1 */
#define SIO_VECTOR 4 /* 0x23 Serial port */#define TF2_VECTOR 5 /* 0x2B Timer 2 */
#define EX2_VECTOR 5 /* 0x2B External Interrupt 2 */#endif
下面,我们来把之前的动态数码管显示的代码模块化一下~~
小雅兰一共是把这些代码封装成了五个文件:
Delay.h的内容:
#ifndef __DELAY_H__ #define __DELAY_H__void Delay(unsigned char xms);#endif
Delay.c的内容:
#include <REGX52.H>void Delay(unsigned char xms) //@12.000MHz {unsigned char data i, j;while(xms){i = 2;j = 239;do{while (--j);} while (--i);xms--;} }
Nixie.h的内容:
#ifndef __NIXIE_H__ #define __NIXIE_H__void Nixie(unsigned char Location,unsigned char Number);#endif
Nixie.c的内容:
#include <REGX52.H> #include "Delay.h" unsigned char NixieTable[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F}; void Nixie(unsigned char Location,unsigned char Number) {switch(Location){case 1:P2_4=1;P2_3=1;P2_2=1;break;case 2:P2_4=1;P2_3=1;P2_2=0;break;case 3:P2_4=1;P2_3=0;P2_2=1;break;case 4:P2_4=1;P2_3=0;P2_2=0;break;case 5:P2_4=0;P2_3=1;P2_2=1;break;case 6:P2_4=0;P2_3=1;P2_2=0;break;case 7:P2_4=0;P2_3=0;P2_2=1;break;case 8:P2_4=0;P2_3=0;P2_2=0;break;}P0=NixieTable[Number];Delay(1);P0=0x00; }
main.c的内容:
#include <REGX52.H> #include "Nixie.h" void main() {while(1){Nixie(1,1);Nixie(2,2);Nixie(3,3);Nixie(4,4);Nixie(5,5);Nixie(6,6);} }
LCD1602调试工具
LCD1602.c的内容:
#include <REGX52.H>//引脚配置: sbit LCD_RS=P2^6; sbit LCD_RW=P2^5; sbit LCD_EN=P2^7; #define LCD_DataPort P0//函数定义: /*** @brief LCD1602延时函数,12MHz调用可延时1ms* @param 无* @retval 无*/ void LCD_Delay() {unsigned char i, j;i = 2;j = 239;do{while (--j);} while (--i); }/*** @brief LCD1602写命令* @param Command 要写入的命令* @retval 无*/ void LCD_WriteCommand(unsigned char Command) {LCD_RS=0;LCD_RW=0;LCD_DataPort=Command;LCD_EN=1;LCD_Delay();LCD_EN=0;LCD_Delay(); }/*** @brief LCD1602写数据* @param Data 要写入的数据* @retval 无*/ void LCD_WriteData(unsigned char Data) {LCD_RS=1;LCD_RW=0;LCD_DataPort=Data;LCD_EN=1;LCD_Delay();LCD_EN=0;LCD_Delay(); }/*** @brief LCD1602设置光标位置* @param Line 行位置,范围:1~2* @param Column 列位置,范围:1~16* @retval 无*/ void LCD_SetCursor(unsigned char Line,unsigned char Column) {if(Line==1){LCD_WriteCommand(0x80|(Column-1));}else if(Line==2){LCD_WriteCommand(0x80|(Column-1+0x40));} }/*** @brief LCD1602初始化函数* @param 无* @retval 无*/ void LCD_Init() {LCD_WriteCommand(0x38);//八位数据接口,两行显示,5*7点阵LCD_WriteCommand(0x0c);//显示开,光标关,闪烁关LCD_WriteCommand(0x06);//数据读写操作后,光标自动加一,画面不动LCD_WriteCommand(0x01);//光标复位,清屏 }/*** @brief 在LCD1602指定位置上显示一个字符* @param Line 行位置,范围:1~2* @param Column 列位置,范围:1~16* @param Char 要显示的字符* @retval 无*/ void LCD_ShowChar(unsigned char Line,unsigned char Column,char Char) {LCD_SetCursor(Line,Column);LCD_WriteData(Char); }/*** @brief 在LCD1602指定位置开始显示所给字符串* @param Line 起始行位置,范围:1~2* @param Column 起始列位置,范围:1~16* @param String 要显示的字符串* @retval 无*/ void LCD_ShowString(unsigned char Line,unsigned char Column,char *String) {unsigned char i;LCD_SetCursor(Line,Column);for(i=0;String[i]!='\0';i++){LCD_WriteData(String[i]);} }/*** @brief 返回值=X的Y次方*/ int LCD_Pow(int X,int Y) {unsigned char i;int Result=1;for(i=0;i<Y;i++){Result*=X;}return Result; }/*** @brief 在LCD1602指定位置开始显示所给数字* @param Line 起始行位置,范围:1~2* @param Column 起始列位置,范围:1~16* @param Number 要显示的数字,范围:0~65535* @param Length 要显示数字的长度,范围:1~5* @retval 无*/ void LCD_ShowNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length) {unsigned char i;LCD_SetCursor(Line,Column);for(i=Length;i>0;i--){LCD_WriteData(Number/LCD_Pow(10,i-1)%10+'0');} }/*** @brief 在LCD1602指定位置开始以有符号十进制显示所给数字* @param Line 起始行位置,范围:1~2* @param Column 起始列位置,范围:1~16* @param Number 要显示的数字,范围:-32768~32767* @param Length 要显示数字的长度,范围:1~5* @retval 无*/ void LCD_ShowSignedNum(unsigned char Line,unsigned char Column,int Number,unsigned char Length) {unsigned char i;unsigned int Number1;LCD_SetCursor(Line,Column);if(Number>=0){LCD_WriteData('+');Number1=Number;}else{LCD_WriteData('-');Number1=-Number;}for(i=Length;i>0;i--){LCD_WriteData(Number1/LCD_Pow(10,i-1)%10+'0');} }/*** @brief 在LCD1602指定位置开始以十六进制显示所给数字* @param Line 起始行位置,范围:1~2* @param Column 起始列位置,范围:1~16* @param Number 要显示的数字,范围:0~0xFFFF* @param Length 要显示数字的长度,范围:1~4* @retval 无*/ void LCD_ShowHexNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length) {unsigned char i,SingleNumber;LCD_SetCursor(Line,Column);for(i=Length;i>0;i--){SingleNumber=Number/LCD_Pow(16,i-1)%16;if(SingleNumber<10){LCD_WriteData(SingleNumber+'0');}else{LCD_WriteData(SingleNumber-10+'A');}} }/*** @brief 在LCD1602指定位置开始以二进制显示所给数字* @param Line 起始行位置,范围:1~2* @param Column 起始列位置,范围:1~16* @param Number 要显示的数字,范围:0~1111 1111 1111 1111* @param Length 要显示数字的长度,范围:1~16* @retval 无*/ void LCD_ShowBinNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length) {unsigned char i;LCD_SetCursor(Line,Column);for(i=Length;i>0;i--){LCD_WriteData(Number/LCD_Pow(2,i-1)%2+'0');} }
LCD1602.h的内容:
#ifndef __LCD1602_H__ #define __LCD1602_H__//用户调用函数: void LCD_Init(); void LCD_ShowChar(unsigned char Line,unsigned char Column,char Char); void LCD_ShowString(unsigned char Line,unsigned char Column,char *String); void LCD_ShowNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length); void LCD_ShowSignedNum(unsigned char Line,unsigned char Column,int Number,unsigned char Length); void LCD_ShowHexNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length); void LCD_ShowBinNum(unsigned char Line,unsigned char Column,unsigned int Number,unsigned char Length);#endif
main.c的内容:
#include <REGX52.H> #include "LCD1602.h"void main() {LCD_Init();LCD_ShowChar(1,1,'K');LCD_ShowString(1,3,"Hello");LCD_ShowNum(1,9,123,3);LCD_ShowSignedNum(1,13,-66,2);LCD_ShowHexNum(2,1,0xA8,2);LCD_ShowBinNum(2,4,0xAA,8);while(1){} }
这个调试工具还是非常方便的!!!
好啦,小雅兰的模块化编程和LCD1602调试工具的内容就到这里啦,还要继续加油!!!