代码是简单的,板子是坏的,电阻是识别不出来的
main.c
c
#include <REGX52.H>
#include "delay.h"
#include "LCD1602.h"
#include "XPT2046.h"
unsigned int ADValue;
void main(void)
{
LCD_Init();
LCD_ShowString(1,1,"ADJ NTC GR");
while(1)
{
ADValue=XPT2046_ReadAD(XPT2046_XP); //读取AIN0,可调电阻
LCD_ShowNum(2,1,ADValue,3); //显示AIN0
ADValue=XPT2046_ReadAD(XPT2046_YP); //读取AIN1,热敏电阻
LCD_ShowNum(2,6,ADValue,3); //显示AIN1
ADValue=XPT2046_ReadAD(XPT2046_VBAT); //读取AIN2,光敏电阻
LCD_ShowNum(2,11,ADValue,3); //显示AIN2
Delay(100);
}
}
delay.c
c
void Delay(unsigned int xms) //@12.000MHz
{
while(xms)
{
unsigned char i, j;
i = 2;
j = 239;
do
{
while (--j);
} while (--i);
xms--;
}
}
LCD1602.c
c
#include <REGX52.H>
//引脚定义
sbit LCD_RS=P2^6;
sbit LCD_RW=P2^5;
sbit LCD_E=P2^7;
#define LCD_DataPort P0
/**
* @brief LCD1602延时函数,12MHz调用可延时1ms
* @param 无
* @retval 无
*/
void LCD_Delay() //@12.000MHz 1ms
{
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_E=1;
LCD_Delay();
LCD_E=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_E=1;
LCD_Delay();
LCD_E=0;
LCD_Delay();
}
/**
* @brief LCD1602初始化函数
* @param 无
* @retval 无
*/
void LCD_Init(void)
{
LCD_WriteCommand(0x38);
LCD_WriteCommand(0x0C);
LCD_WriteCommand(0x06);
LCD_WriteCommand(0x01);
}
/**
* @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
{
LCD_WriteCommand(0x80|(Column-1)+0x40);
}
}
/**
* @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,unsigned 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,unsigned char *String)
{
//字符是建立的数字到字符的映射
//字符数组是存储字符变量的一个数组
//char
//想到c语言中的一个重要的问题 就是何为字符串
//和何为字符数组 字符串是以\0收尾的
//就是不停的判断我输入的最后一个是否是\0如果是就停止
//遍历寻找法
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('0'+Number/LCD_Pow(10,i-1)%10);
}
}
/**
* @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('0'+Number1/LCD_Pow(10,i-1)%10);
}
}
/**
* @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;
unsigned char SingleNumber;
LCD_SetCursor(Line,Column);
for(i=Length;i>0;i--)
{
SingleNumber=Number/LCD_Pow(16,i-1)%16;
if(SingleNumber<10)
{
LCD_WriteData('0'+SingleNumber);
}
else
{
LCD_WriteData('A'+SingleNumber-10);
}
}
}
/**
* @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('0'+Number/LCD_Pow(2,i-1)%2);
}
}
delay.h
c
#ifndef _DELAY_H__
#define _DELAY_H__
void Delay(unsigned int xms);
#endif
LCD1602.h
c
#ifndef __LCD1602_H_
#define __LCD1602_H_
void LCD_Init(void);
void LCD_ShowChar(unsigned char Line,unsigned char Column,unsigned char Char);
void LCD_ShowString(unsigned char Line,unsigned char Column,unsigned 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
XPT2046.c
c
#include <REGX52.H>
#include <INTRINS.H>
//引脚定义
sbit XPY2046_DIN=P3^4;
sbit XPY2046_CS=P3^5;
sbit XPY2046_DCLK=P3^6;
sbit XPY2046_DOUT=P3^7;
/**
* @brief ZPT2046读取AD值
* @param Command 命令字,范围:头文件内定义的宏,结尾的数字表示转换的位数
* @retval AD转换后的数字量,范围:8位为0~255,12位为0~4095
*/
unsigned int XPT2046_ReadAD(unsigned char Command)
{
unsigned char i;
unsigned int Data=0;
XPY2046_DCLK=0;
XPY2046_CS=0;
for(i=0;i<8;i++)
{
XPY2046_DIN=Command&(0x80>>i);
XPY2046_DCLK=1;
XPY2046_DCLK=0;
}
for(i=0;i<16;i++)
{
XPY2046_DCLK=1;
XPY2046_DCLK=0;
if(XPY2046_DOUT){Data|=(0x8000>>i);}
}
XPY2046_CS=1;
return Data>>8;
}
XPT2046.h
c
#ifndef __XPT2046_H__
#define __XPT2046_H__
#define XPT2046_VBAT 0xAC
#define XPT2046_AUX 0xEC
#define XPT2046_XP 0x9C //0xBC
#define XPT2046_YP 0xDC
unsigned int XPT2046_ReadAD(unsigned char Command);
#endif