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#include <AT89X52.h>
#define uint unsigned int
#define uchar unsigned char //宏定義
#define key_S 10 //定義短按(約20ms)
#define key_L key_S*50 //定義長按(約500ms)
#define key_I key_S*38 //定義長按連+/-間隔(約120ms)
sbit LCD_RS =P2^4; //液晶屏RS口寫指令低，寫數據高
sbit LCD_EN =P2^5; //液晶屏EN口高脈沖使能寫指令/數據，低跳變執行
sbit limit_H=P2^6; //定義上限燈光報警
sbit limit_L=P2^7; //定義下限燈光報警
sbit SET = P3^3; //定義調整鍵
sbit DEC = P3^4; //定義減少鍵
sbit ADD = P3^5; //定義增加鍵
sbit BEEP = P3^6; //定義蜂鳴器
sbit DQ = P3^7; //定義DS18B20總線I/O
uchar code LEDData[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x89,0x83,0x86,0xA1,0x86,0x8E};
uchar data dis_buf[4];//數碼管顯示緩存
uchar data dis_buf1[]={'T','e','m','p',':','0','0','0','.','0',0xdf,'C'};
int Ceiling=38; //上限報警溫度，默認值為38
int Bottom=5; //下限報警溫度，默認值為5
int temp,tempM; //溫度變量
uchar tempH,tempL; //高4位以上整數，低4位小數
bit negative; //負號標志
uchar KeySec=0; //鍵值
/*****延時子程序*****/
void Delay(uint num)//T=num*8+6us
{
while(--num);
}
/*******液晶寫指令程序********/
void write_com(uchar com)
{
LCD_RS=0; //允許寫指令
P0=com; //傳遞指令
Delay(120); //延時966us
LCD_EN=1; //使能寫入
Delay(120); //延時966us
LCD_EN=0; //低跳變執行
}
/*******液晶寫數據程序********/
void write_date(uchar date)
{
LCD_RS=1; //允許寫數據
P0 =date; //傳遞數據
Delay(120); //延時966us
LCD_EN=1; //使能寫入
Delay(120); //延時966us
LCD_EN=0; //低跳變執行
}
/*******液晶初始化程序********/
void LCDinit() //設置顯示模式、
{
LCD_EN=0; //初始設置LCD_EN低電平
write_com(0x38);//設置16*2顯示，5*7點陣，8位數據接口
write_com(0x01);//顯示清零，數據指針清零
write_com(0x0c);//設置開顯示，不顯光標
write_com(0x06);//設置寫一個字符后地址指針加1
}
/*****初始化DS18B20*****/
void Init_DS18B20(void)
{
uchar x=0;
DQ = 1; //DQ復位
Delay(2); //稍做延時22us
DQ = 0; //單片機將DQ拉低
Delay(60); //精確延時大于480us//486us
DQ = 1; //拉高總線
Delay(12); //102us
x = DQ; //稍做延時后，如果x=0則初始化成功，x=1則初始化失敗
Delay(6); //54us
}
/*****讀一個字節*****/
uchar ReadOneChar(void)
{
uchar i=0;
uchar dat = 0;
for(i=8;i>0;i--)
{
DQ = 0; // 給脈沖信號
dat>>=1;
DQ = 1; // 給脈沖信號
if(DQ)
dat|=0x80;
Delay(6); //54us
}
return(dat);
}
/*****寫一個字節*****/
void WriteOneChar(uchar dat)
{
uchar i=0;
for (i=8; i>0; i--)
{
DQ = 0;
DQ = dat&0x01;
Delay(6); //54us
DQ = 1;
dat>>=1;
}
Delay(6); //54us
}
/*****溫度值轉換*****/
void ReadTemperature()
{
static uchar i=0;
uchar a=0,b=0;
switch(i)
{
case 0:
Init_DS18B20();
WriteOneChar(0xCC);//跳過讀序號列號的操作
WriteOneChar(0x44);//啟動溫度轉換
break;
case 3:
Init_DS18B20();
WriteOneChar(0xCC);//跳過讀序號列號的操作
WriteOneChar(0xBE);//讀取溫度寄存器
break;
case 5:
a=ReadOneChar(); //讀低8位
b=ReadOneChar(); //讀高8位
temp=b<<8|a; //高8位+低8位轉移到t
break;
case 6:
tempM=temp;
if(temp&0x8000)
{
negative=1; //負號標志
temp=~temp+1; //取反加1
}
else negative=0; //正數
tempH=temp>>4; //分解出整數
tempL=temp&0x0F; //分解出小數
tempL=tempL*0.625; //保留1位小數
}
i=++i%7;
}
void disassemble()
{
if(KeySec==0)//顯示初始狀態'----'
{
dis_buf[0]=0xbf;
dis_buf[1]=0xbf;
dis_buf[2]=0xbf;
dis_buf[3]=0xbf;
dis_buf1[5]='-';
dis_buf1[6]='-';
dis_buf1[7]='-';
dis_buf1[9]='-';
}
else if(KeySec==1)//顯示溫度
{
if(negative==1)
{
if(tempH>=10)
{
dis_buf[0]=0xbf;//顯示負號
dis_buf[1]=LEDData[tempH/10%10];
dis_buf1[5]='-';
dis_buf1[6]=tempH/10%10+'0';
}
else if(tempH<10)//小于100
{
dis_buf[0]=0xff;//不顯示
dis_buf[1]=0xbf;//顯示負號
dis_buf1[5]=' ';
dis_buf1[6]='-';
}
}
else
{
if(tempH>=100)
{
dis_buf[0]=LEDData[tempH/100];
dis_buf1[5]=tempH/100+'0';
}
else
{
dis_buf[0]=0xff;//不顯示
dis_buf1[5]=' ';
}
if(tempH>=10)
{
dis_buf[1]=LEDData[tempH/10%10];
dis_buf1[6]=tempH/10%10+'0';
}
else
{
dis_buf[1]=0xff;//不顯示
dis_buf1[6]=' ';
}
}
dis_buf[2]=LEDData[tempH%10]&0x7f;
dis_buf[3]=LEDData[tempL];
dis_buf1[7]=tempH%10+'0';
dis_buf1[9]=tempL+'0';
}
else if(KeySec==2)//顯示調整上限
{
dis_buf[0]=0x89;//顯示'H'
dis_buf[1]=LEDData[Ceiling/10%10];
dis_buf[2]=LEDData[Ceiling%10]&0x7f;
dis_buf[3]=LEDData[0];
dis_buf1[5]='H';//顯示'H'
dis_buf1[6]=Ceiling/10%10+'0';
dis_buf1[7]=Ceiling%10+'0';
dis_buf1[9]='0';
}
else if(KeySec==3)//顯示調整下限
{
dis_buf[0]=0xc7;//顯示'L'
dis_buf[1]=LEDData[Bottom/10%10];
dis_buf[2]=LEDData[Bottom%10]&0x7f;
dis_buf[3]=LEDData[0];
dis_buf1[5]='L';//顯示'L'
dis_buf1[6]=Bottom/10%10+'0';
dis_buf1[7]=Bottom%10+'0';
dis_buf1[9]='0';
}
}
/*****顯示子程序*****/
void display()
{
static uchar i,j;
static bit flag=0;
//數碼管與LCD1602交替刷新
if(!flag)
{
P2&=0xf0;//清P2低4位數碼管消隱
switch(j)
{
case 0:LCD_RS=0;P0=0x85; break;//坐標指令
case 1:LCD_RS=1;P0=dis_buf1[5]; break;//更新字符
case 2:P0=dis_buf1[6]; break;
case 3:P0=dis_buf1[7]; break;
case 4:P0=dis_buf1[8]; break;
case 5:P0=dis_buf1[9]; break;
}
LCD_EN=1;
j=++j%6;
}
else
{
LCD_EN=0;
P0=dis_buf[i];//送段碼
P2|=0x01<<i; //送位碼
i=++i%4; //位掃描計數
}
flag=~flag;
}
//按鍵掃描
void keyscan()
{
static uint time=0;
if(!SET||!DEC||!ADD)
{
time++;
if(time>key_L)//長按計數
time=key_I;//連+/-間隔
if(time==key_S)//短按消抖
{
if(!SET)
{
KeySec++;
if(KeySec>3)
{
KeySec=1;
}
}
}
if(time==key_S||time==key_L)//短按消抖或長按連+/-
{//設置范圍0~99℃，上限不小于下限+1℃ 下限不大于上限-1℃，
if(!DEC && KeySec>1)
{
switch(KeySec)
{
case 2: if(Ceiling>1&&Ceiling>(Bottom+1))Ceiling--; break;
case 3: if(Bottom>0)Bottom--; break;
}
}
if(!ADD && KeySec>1)
{
switch(KeySec)
{
case 2: if(Ceiling<99)Ceiling++; break;
case 3: if(Bottom<(Ceiling-1))Bottom++; break;
}
}
}
}
else time=0;
}
/*****報警子程序*****/
void Alarm()
{
static unsigned int count=0;
if(tempM>(Ceiling<<4))//超上限
limit_H=0; //LED亮
else limit_H=1; //LED滅
if(tempM<(Bottom<<4)) //超下限
limit_L=0; //LED亮
else limit_L=1; //LED滅
if(limit_H==0||limit_L==0)
{
count++;
if(count>50)
BEEP=1;
if(count>=100)
{
count=0;
BEEP=0;
}
}
else
{
count=0;
BEEP=0;
}
}
void Timer0Init() //2毫秒@12.000MHz
{
TMOD |= 0x01; //設置定時器模式
TL0 = 0x30; //設置定時初始值
TH0 = 0xF8; //設置定時初始值
TF0 = 0; //清除TF0標志
TR0 = 1; //定時器0開始計時
}
/*****主函數*****/
void main(void)
{
uint z;
BEEP=0;//蜂鳴器初始化
P2&=0xf0;//清P2低4位數碼管消隱
LCDinit();//初始化LCD
write_com(0x80);//固定字符
for(z=0;z<12;z++)
write_date(dis_buf1[z]);
for(z=0;z<7;z++)
ReadTemperature();//初始讀DS18B20
disassemble();//
for(z=380;z>0;z--)//不顯示DS18B20初始85℃
{
display(); //顯示'----'
Delay(250); //2ms
}
KeySec=1;//鍵值初始化
Timer0Init();//定時器初始化
while(1)
{
if(TF0)
{
TF0 = 0;
TL0 = 0x18; //設置定時初始值
TH0 = 0xFC; //設置定時初始值
display();//顯示掃描
ReadTemperature();//溫度檢測
keyscan();//按鍵掃描
disassemble();//數據分解
Alarm();//報警檢測
}
}
}

復制代碼

/* main.c */
#include <REGX52.H>
#include <stdio.h>
#include "lcd1602.h"
#define MAIN_FOSC_DELAY 12000000UL
#define T1MS_0 (65536-MAIN_FOSC_DELAY/12/1000) //1ms timer calculation method in 12T mode
#define T1MS_1 (65536-MAIN_FOSC_DELAY/12/1000) //1ms timer calculation method in 12T mode
#define TIMER_MODE0 0x00
#define TIMER_MODE1 0x01
#define TIMER_MODE2 0x02
#define TIMER_MODE3 0x03
static bit _1_ms_flag = 0; //1ms標志位
static bit _100ms_flag = 0; //100ms標志位
static bit _500ms_flag = 0; //500ms標志位
static void Timer0Init( void );
//主函數
int main( void )
{
idata float disTemp[4] = {0};
idata unsigned char display_buf[16];//顯示數組
idata unsigned int display_len;//顯示數據長度
Timer0Init();
MngLCD1602_Init();//LCD1602初始化
EA = 1;
while( 1 )
{
if(1 == _100ms_flag)
{
_100ms_flag = 0;
disTemp[0] += 0.1f;
disTemp[1] += 0.2f;
disTemp[2] += 0.3f;
disTemp[3] += 0.4f;
display_len = sprintf( display_buf, "%.2f ", disTemp[0] );
displayString( 0, 0, display_buf, display_len );
display_len = sprintf( display_buf, "%.2f ", disTemp[1] );
displayString( 10, 0, display_buf, display_len );
display_len = sprintf( display_buf, "%.2f ", disTemp[2] );
displayString( 0, 1, display_buf, display_len );
display_len = sprintf( display_buf, "%.2f ", disTemp[3] );
displayString( 10, 1, display_buf, display_len );
}
else
{
/* empty */
}
if(1 == _1_ms_flag)
{
_1_ms_flag = 0u;
MngLCD1602_Handle();
}
else
{
/* empty */
}
}
}
//定時器0中斷
static void Timer0Init( void ) //定時器初始化為1ms一次
{
TMOD |= 0X01; //選擇為定時器0模式，工作方式1，僅用TR0打開啟動。
TL0 = T1MS_0;//給定時器賦初值，定時1ms ,計算方式(65536 -(12/12*1000))%256
TH0 = T1MS_0 >> 8;//給定時器賦初值，定時1ms ,計算方式(65536 -(12/12*1000))/256
ET0 = 1; //打開定時器0中斷允許
TR0 = 1; //打開定時器
}
void time0_isr() interrupt 1 using 0
{
static unsigned int count = 0;
static unsigned int count2 = 0;
TL0 = T1MS_0;//手動重裝載
TH0 = T1MS_0 >> 8;//手動重裝載
_1_ms_flag = 1;//1ms標志位置1
if( ++count >= 100 ) //0.1秒到了
{
count = 0;
_100ms_flag = 1;//1秒標志位置1
}
if( ++count2 >= 500 )
{
count2 = 0;
_500ms_flag = 1;
}
}
/* LCD1602.h */
#ifndef __LCD1602_H_
#define __LCD1602_H_
/**********************************
包含頭文件
**********************************/
#include <REGX52.H>
typedef unsigned long uint32_t;
typedef unsigned int uint16_t;
typedef unsigned char uint8_t;
/**********************************
PIN口定義
**********************************/
#define LCD1602_DATAPINS P0
sbit LCD1602_RS = P2 ^ 6;
sbit LCD1602_RW = P2 ^ 5;
sbit LCD1602_E = P2 ^ 7;
/**********************************
函數聲明
**********************************/
extern void MngLCD1602_Init( void );
extern void MngLCD1602_Handle( void );
extern void displayString( uint8_t x, uint8_t y, uint8_t* dat, uint8_t len);
#endif
/* LCD1602.c */
#include "lcd1602.h"
#include <string.h>
#define LCD1602_ROW_NUM 2u
#define LCD1602_COLUMN_NUM 16u
#define LCD1602_READ_DATA() (LCD1602_DATAPINS)
#define LCD1602_WRITE_DATA(dat) (LCD1602_DATAPINS = (uint8_t)dat)
#define LCD1602_SET_RS_H() (LCD1602_RS = 1)
#define LCD1602_SET_RS_L() (LCD1602_RS = 0)
#define LCD1602_SET_RW_H() (LCD1602_RW = 1)
#define LCD1602_SET_RW_L() (LCD1602_RW = 0)
#define LCD1602_SET_E_H() (LCD1602_E = 1)
#define LCD1602_SET_E_L() (LCD1602_E = 0)
typedef enum
{
false = 0u,
true,
}Bool;
typedef enum
{
Ce_Sending = 0u,
Ce_SendOK,
}TeLCD1602_SendState;
typedef enum
{
Ce_SendAddr_00 = 0u,
Ce_SendData_00,
Ce_SendAddr_10,
Ce_SendData_10,
}TeLCD1602_SendStep;
typedef enum TeLCD1602_e_writeStateTypeTag
{
Ce_Stay_0 = 0u,
Ce_Stay_1 = 1u,
Ce_Stay_2 = 2u,
} TeLCD1602_e_writeStateType;
typedef struct TsLCD1602_h_RowParaTypeTag
{
const uint8_t* e_p_DisplayStartAddr;
const uint8_t* e_p_DisplayEndAddr;
} TsLCD1602_h_RowParaType;
typedef struct TsLCD1602_h_displayParaTypeTag
{
TeLCD1602_SendStep e_e_SendStep;
TeLCD1602_e_writeStateType e_e_WriteState;
TsLCD1602_h_RowParaType e_h_RowPara[LCD1602_ROW_NUM];
uint8_t* e_p_DisplayNextAddr;
} TsLCD1602_h_displayParaType;
static volatile uint8_t SeLCD1602_u_displayBuffer[LCD1602_ROW_NUM][LCD1602_COLUMN_NUM];
static volatile TsLCD1602_h_displayParaType SsLCD1602_h_displayPara;
static Bool MngLCD1602_IsBusy( void );
static void MngLCD1602_Display();
static TeLCD1602_SendState LcdWriteData( const uint8_t dat );
static TeLCD1602_SendState LcdWriteCom( const uint8_t com ) ;
static Bool MngLCD1602_IsBusy( void )
{
LCD1602_WRITE_DATA(0xff);
LCD1602_SET_RS_L();
LCD1602_SET_RW_H();
if( 0 != (LCD1602_READ_DATA() & 0x80) )
{
LCD1602_SET_E_L();
LCD1602_SET_E_H();
return true;
}
else
{
LCD1602_SET_E_L();
return false;
}
}
static TeLCD1602_SendState LcdWriteCom( const uint8_t com )
{
switch( SsLCD1602_h_displayPara.e_e_WriteState )
{
case Ce_Stay_0:
LCD1602_SET_RS_L();
LCD1602_SET_RW_L();
LCD1602_WRITE_DATA( com );
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_1;
return Ce_Sending;
break;
case Ce_Stay_1:
LCD1602_SET_E_H();
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_2;
return Ce_Sending;
break;
case Ce_Stay_2:
LCD1602_SET_E_L();
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_0;
return Ce_SendOK;
break;
default:
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_0;
return Ce_SendOK;
break;
}
}
static TeLCD1602_SendState LcdWriteData( const uint8_t dat )
{
switch( SsLCD1602_h_displayPara.e_e_WriteState )
{
case Ce_Stay_0:
LCD1602_SET_RS_H();
LCD1602_SET_RW_L();
LCD1602_WRITE_DATA( dat );
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_1;
return Ce_Sending;
break;
case Ce_Stay_1:
LCD1602_SET_E_H();
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_2;
return Ce_Sending;
break;
case Ce_Stay_2:
LCD1602_SET_E_L();
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_0;
return Ce_SendOK;
break;
default:
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_0;
return Ce_SendOK;
break;
}
}
static void MngLCD1602_Display( void )
{
switch(SsLCD1602_h_displayPara.e_e_SendStep)
{
case Ce_SendAddr_00:
if(Ce_Stay_0 == SsLCD1602_h_displayPara.e_e_WriteState)
{
if(false == MngLCD1602_IsBusy())
{
LcdWriteCom(0x80);
}
else
{
/* empty */
}
}
else if(Ce_SendOK == LcdWriteCom(0x80)) /* 第0,0位置開始顯示 */
{
SsLCD1602_h_displayPara.e_e_SendStep = Ce_SendData_00;
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_0;
SsLCD1602_h_displayPara.e_p_DisplayNextAddr = SsLCD1602_h_displayPara.e_h_RowPara[0].e_p_DisplayStartAddr;
}
else
{
/* empty */
}
break;
case Ce_SendData_00:
if(Ce_Stay_0 == SsLCD1602_h_displayPara.e_e_WriteState)
{
if(false == MngLCD1602_IsBusy())
{
LcdWriteData(*SsLCD1602_h_displayPara.e_p_DisplayNextAddr);
}
else
{
/* empty */
}
}
else if(Ce_SendOK == LcdWriteData(*SsLCD1602_h_displayPara.e_p_DisplayNextAddr))
{
SsLCD1602_h_displayPara.e_p_DisplayNextAddr++;
if(SsLCD1602_h_displayPara.e_p_DisplayNextAddr > SsLCD1602_h_displayPara.e_h_RowPara[0].e_p_DisplayEndAddr)
{
SsLCD1602_h_displayPara.e_e_SendStep = Ce_SendAddr_10;
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_0;
SsLCD1602_h_displayPara.e_p_DisplayNextAddr = SsLCD1602_h_displayPara.e_h_RowPara[1].e_p_DisplayStartAddr;
}
else
{
/* empty */
}
}
else
{
/* empty */
}
break;
case Ce_SendAddr_10:
if(Ce_Stay_0 == SsLCD1602_h_displayPara.e_e_WriteState)
{
if(false == MngLCD1602_IsBusy())
{
LcdWriteCom(0x80 + 0x40);
}
else
{
/* empty */
}
}
else if(Ce_SendOK == LcdWriteCom(0x80 + 0x40)) /* 第0,1位置開始顯示 */
{
SsLCD1602_h_displayPara.e_e_SendStep = Ce_SendData_10;
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_0;
SsLCD1602_h_displayPara.e_p_DisplayNextAddr = SsLCD1602_h_displayPara.e_h_RowPara[1].e_p_DisplayStartAddr;
}
else
{
/* empty */
}
break;
case Ce_SendData_10:
if(Ce_Stay_0 == SsLCD1602_h_displayPara.e_e_WriteState)
{
if(false == MngLCD1602_IsBusy())
{
LcdWriteData(*SsLCD1602_h_displayPara.e_p_DisplayNextAddr);
}
else
{
/* empty */
}
}
else if(Ce_SendOK == LcdWriteData(*SsLCD1602_h_displayPara.e_p_DisplayNextAddr))
{
SsLCD1602_h_displayPara.e_p_DisplayNextAddr++;
if(SsLCD1602_h_displayPara.e_p_DisplayNextAddr > SsLCD1602_h_displayPara.e_h_RowPara[1].e_p_DisplayEndAddr)
{
SsLCD1602_h_displayPara.e_e_SendStep = Ce_SendAddr_00;
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_0;
SsLCD1602_h_displayPara.e_p_DisplayNextAddr = SsLCD1602_h_displayPara.e_h_RowPara[0].e_p_DisplayStartAddr;
}
else
{
/* empty */
}
}
else
{
/* empty */
}
break;
default :
SsLCD1602_h_displayPara.e_e_SendStep = Ce_SendAddr_00;
SsLCD1602_h_displayPara.e_p_DisplayNextAddr = SsLCD1602_h_displayPara.e_h_RowPara[0].e_p_DisplayStartAddr;
break;
}
}
void MngLCD1602_Init( void )
{
uint8_t index = 0u;
uint8_t LeLCD1602InitCfg[4] = {0x38, 0x0c, 0x06, 0x01};
SsLCD1602_h_displayPara.e_e_SendStep = Ce_SendAddr_00;
SsLCD1602_h_displayPara.e_e_WriteState = Ce_Stay_0;
SsLCD1602_h_displayPara.e_p_DisplayNextAddr = &SeLCD1602_u_displayBuffer[0][0];
SsLCD1602_h_displayPara.e_h_RowPara[0].e_p_DisplayStartAddr = &SeLCD1602_u_displayBuffer[0][0];
SsLCD1602_h_displayPara.e_h_RowPara[0].e_p_DisplayEndAddr = &SeLCD1602_u_displayBuffer[0][LCD1602_COLUMN_NUM-1];
SsLCD1602_h_displayPara.e_h_RowPara[1].e_p_DisplayStartAddr = &SeLCD1602_u_displayBuffer[1][0];
SsLCD1602_h_displayPara.e_h_RowPara[1].e_p_DisplayEndAddr = &SeLCD1602_u_displayBuffer[1][LCD1602_COLUMN_NUM-1];
memset(SeLCD1602_u_displayBuffer, 0x20, sizeof(SeLCD1602_u_displayBuffer));
while(index < (sizeof(LeLCD1602InitCfg)/sizeof(uint8_t)))
{
if(Ce_Stay_0 == SsLCD1602_h_displayPara.e_e_WriteState)
{
if(false == MngLCD1602_IsBusy())
{
LcdWriteCom(LeLCD1602InitCfg[index]);
}
else
{
/* empty */
}
}
else if(Ce_SendOK == LcdWriteCom(LeLCD1602InitCfg[index]))
{
index++;
}
else
{
/* empty */
}
}
}
void MngLCD1602_Handle( void )
{
MngLCD1602_Display();
}
void displayString( uint8_t x, uint8_t y, uint8_t* dat, uint8_t len)
{
if(y >= 2)
{
return;
}
else
{
/* empty */
}
if(16 > (x + len))
{
memcpy(&SeLCD1602_u_displayBuffer[y][x], dat, len);
}
else
{
memcpy(&SeLCD1602_u_displayBuffer[y][x], dat, 15-x);
}
}

復制代碼

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