还有就是初始化ds1302以后,读写时间函数好像都没有问题,但是屏幕上时间总是显示不对。不知道是程序哪里出了问题,以下是主程序,请大佬帮帮忙看看,下图就是显示出现的问题
/*-----------------------------------------------
名称:12864字库液晶显示
内容:通过显示字符、数字、汉字和图片测试液晶基本功能
------------------------------------------------*/
#include <stc12c5a60s2.h>
#include <intrins.h>
#include "delay.h"
sbit RS = P2^5;
sbit RW = P2^6;
sbit E = P2^7;
sbit RES = P1^7;
sbit PSB = P1^6;
sbit beep = P3^7;
#define DataPort P0 //MCU P0<------> LCM
//
typedef unsigned char U8; /* defined for unsigned 8-bits integer variable 无符号8位整型变量 */
typedef signed char S8; /* defined for signed 8-bits integer variable 有符号8位整型变量 */
typedef unsigned int U16; /* defined for unsigned 16-bits integer variable 无符号16位整型变量 */
typedef signed int S16; /* defined for signed 16-bits integer variable 有符号16位整型变量 */
typedef unsigned long U32; /* defined for unsigned 32-bits integer variable 无符号32位整型变量 */
typedef signed long S32; /* defined for signed 32-bits integer variable 有符号32位整型变量 */
typedef float F32; /* single precision floating point variable (32bits) 单精度浮点数(32位长度) */
typedef double F64; /* double precision floating point variable (64bits) 双精度浮点数(64位长度) */
//
#define uchar unsigned char
#define uint unsigned int
#define Data_0_time 4
//----------------------------------------------//
//----------------IO口定义区--------------------//
//----------------------------------------------//
sbit P2_0 = P2^0 ;
//----------------------------------------------//
//----------------定义区--------------------//
//----------------------------------------------//
U8 U8FLAG,k;
U8 U8count,U8temp;
U8 U8T_data_H,U8T_data_L,U8RH_data_H,U8RH_data_L,U8checkdata;
U8 U8comdata;
U8 flag;
U8 jishi_flag = 0,count_up = 0;
unsigned char count=0,ss=0,sg=0,fs=0,fg=0,ms=0,mg=0,m=0,f=0,s=0,yue=1,ri=1;
unsigned char str1[]={"温度:00%"},str2[2],str3[]={"湿度:00%"},str4[2],dat=1,cal[10]={"0001-01-01"};
//初始时间定义
uchar time_buf[9] = {0x20,0x20,0x04,0x02,0x18,0x04,0x00,0x04};
#define uchar unsigned char
#define uint unsigned int
//DS1302引脚定义
sbit RST=P3^5;
sbit IO=P3^4;
sbit SCK=P3^6;
//DS1302地址定义
#define ds1302_sec_add 0x80 //秒数据地址
#define ds1302_min_add 0x82 //分数据地址
#define ds1302_hr_add 0x84 //时数据地址
#define ds1302_date_add 0x86 //日数据地址
#define ds1302_month_add 0x88 //月数据地址
#define ds1302_day_add 0x8a //星期数据地址
#define ds1302_year_add 0x8c //年数据地址
#define ds1302_control_add 0x8e //控制数据地址
#define ds1302_charger_add 0x90
#define ds1302_clkburst_add 0xbe
#define Rds1302_year_add 0x8d
#define Rds1302_month_add 0x89
#define Rds1302_date_add 0x87
#define Rds1302_hr_add 0x85
#define Rds1302_min_add 0x83
#define Rds1302_sec_add 0x81
#define Rds1302_day_add 0x8b
void SetNormalMode();
void Delay18ms() //@11.0592MHz
{
unsigned char i, j, k;
_nop_();
_nop_();
i = 1;
j = 194;
k = 159;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
void Delay10us() //@11.0592MHz
{
unsigned char i;
_nop_();
_nop_();
_nop_();
i = 24;
while (--i);
}
//向DS1302写入一字节数据
void ds1302_write_byte(uchar addr, uchar d)
{
uchar i;
RST=1; //启动DS1302总线
_nop_(); //写入目标地址:addr
//addr = addr & 0xFE; //最低位置零,寄存器0位为0时写,为1时读
for (i = 0; i < 8; i ++)
{
IO=addr & 0x01;
addr = addr >> 1;
SCK=1;
SCK=0; //产生时钟
}
//写入数据:d
for (i = 0; i < 8; i ++) {
IO=d & 0x01;
d = d >> 1;
SCK=1;
SCK=0; //产生时钟
}
RST=0; //停止DS1302总线
SCK=1; /*时钟线拉高*/
//IO=1; /*总线释放*/
}
//从DS1302读出一字节数据
uchar ds1302_read_byte(uchar addr) {
uchar i,dat,temp;
RST=1; //启动DS1302总线
_nop_(); //写入目标地址:addr
//addr = addr | 0x01; //最低位置高,寄存器0位为0时写,为1时读
for (i = 0; i < 8; i ++)
{
IO=addr & 0x01;
addr = addr >> 1;
SCK=1;
SCK=0; //产生时钟
}
//输出数据:temp
for (i = 0; i < 8; i ++) {
temp=IO;
dat = (dat>>1) | (temp<<7);
SCK=1;
SCK=0;
}
RST=0; //停止DS1302总线
_nop_();
_nop_();
return dat;
}
//从DS302读出时钟数据
void ds1302_read_time(void)
{
time_buf[1]=ds1302_read_byte(Rds1302_year_add); //年
time_buf[2]=ds1302_read_byte(Rds1302_month_add); //月
time_buf[3]=ds1302_read_byte(Rds1302_date_add); //日
time_buf[4]=ds1302_read_byte(Rds1302_hr_add); //时
time_buf[5]=ds1302_read_byte(Rds1302_min_add); //分
time_buf[6]=ds1302_read_byte(Rds1302_sec_add);//&0x3f;//秒,屏蔽秒的第7位,避免超出59
time_buf[7]=ds1302_read_byte(Rds1302_day_add); //周
}
//DS1302初始化函数
void ds1302_init(void)
{
//RST=0; //RST脚置低
// SCK=0; //SCK脚置低
//向DS302写入时钟数据
ds1302_write_byte(ds1302_control_add,0x00); //关闭写保护
//ds1302_write_byte(ds1302_sec_add,0x80); //暂停时钟
ds1302_write_byte(ds1302_charger_add,0xa9); //涓流充电
ds1302_write_byte(ds1302_year_add,time_buf[1]); //年
ds1302_write_byte(ds1302_month_add,time_buf[2]); //月
ds1302_write_byte(ds1302_date_add,time_buf[3]); //日
ds1302_write_byte(ds1302_hr_add,time_buf[4]); //时
ds1302_write_byte(ds1302_min_add,time_buf[5]); //分
ds1302_write_byte(ds1302_sec_add,time_buf[6]); //秒
ds1302_write_byte(ds1302_day_add,time_buf[7]); //周
//ds1302_write_byte(0xc0,0xaa);
ds1302_write_byte(ds1302_control_add,0x80); //打开写保护
}
unsigned char code user16x16[]={ //笑脸图片
0x0F,0xF0,0x10,0x08,0x20,0x04,0x40,0x02,0x9C,0x39,0xBE,0x7D,0x80,0x01,0x80,0x01,
0x80,0x01,0x88,0x11,0x84,0x21,0x43,0xC2,0x20,0x04,0x10,0x08,0x0F,0xF0,0x00,0x00,
};
unsigned char code pic1[]= // 图片代码
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
unsigned char code num[11][64]={
{// 图片数字0
0x00,0x00,0x3F,0xFC,0x5F,0xFA,0x6F,0xF6,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,
0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x60,0x06,0x40,0x02,0x00,0x00,
0x40,0x02,0x60,0x06,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,
0x70,0x0E,0x70,0x0E,0x70,0x0E,0x6F,0xF6,0x5F,0xFA,0x3F,0xFC,0x00,0x00,0x00,0x00},
{// 图片数字1
0x00,0x00,0x00,0x20,0x00,0x60,0x00,0xE0,0x00,0xE0,0x00,0xE0,0x00,0xE0,0x00,0xE0,
0x00,0xE0,0x00,0xE0,0x00,0xE0,0x00,0xE0,0x00,0x60,0x00,0x20,0x00,0x00,0x00,0x20,
0x00,0x60,0x00,0xE0,0x00,0xE0,0x00,0xE0,0x00,0xE0,0x00,0xE0,0x00,0xE0,0x00,0xE0,
0x00,0xE0,0x00,0xE0,0x00,0xE0,0x00,0x60,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00},
{// 图片数字2
0x00,0x00,0x3F,0xFC,0x1F,0xFA,0x0F,0xF6,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,
0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x06,0x1F,0xFA,0x3F,0xFC,
0x5F,0xF8,0x60,0x00,0x70,0x00,0x70,0x00,0x70,0x00,0x70,0x00,0x70,0x00,0x70,0x00,
0x70,0x00,0x70,0x00,0x70,0x00,0x6F,0xF8,0x5F,0xFC,0x3F,0xFE,0x00,0x00,0x00,0x00},
{// 图片数字3
0x00,0x00,0x3F,0xFC,0x1F,0xFA,0x0F,0xF6,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,
0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x06,0x1F,0xFA,0x3F,0xFC,
0x1F,0xFA,0x00,0x06,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,
0x00,0x0E,0x00,0x0E,0x00,0x0E,0x0F,0xF6,0x1F,0xFA,0x3F,0xFC,0x00,0x00,0x00,0x00},
{// 图片数字4
0x00,0x00,0x40,0x02,0x60,0x06,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,
0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x60,0x06,0x5F,0xFA,0x3F,0xFC,
0x1F,0xFA,0x00,0x06,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,
0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x06,0x00,0x02,0x00,0x00,0x00,0x00},
{// 图片数字5
0x00,0x00,0x3F,0xFC,0x5F,0xF8,0x6F,0xF0,0x70,0x00,0x70,0x00,0x70,0x00,0x70,0x00,
0x70,0x00,0x70,0x00,0x70,0x00,0x70,0x00,0x70,0x00,0x60,0x00,0x5F,0xF8,0x3F,0xFC,
0x1F,0xFA,0x00,0x06,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,
0x00,0x0E,0x00,0x0E,0x00,0x0E,0x0F,0xF6,0x1F,0xFA,0x3F,0xFC,0x00,0x00,0x00,0x00},
{// 图片数字6
0x00,0x00,0x3F,0xFC,0x5F,0xF8,0x6F,0xF0,0x70,0x00,0x70,0x00,0x70,0x00,0x70,0x00,
0x70,0x00,0x70,0x00,0x70,0x00,0x70,0x00,0x70,0x00,0x60,0x00,0x5F,0xF8,0x3F,0xFC,
0x5F,0xFA,0x60,0x06,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,
0x70,0x0E,0x70,0x0E,0x70,0x0E,0x6F,0xF6,0x5F,0xFA,0x3F,0xFC,0x00,0x00,0x00,0x00},
{// 图片数字7
0x00,0x00,0x3F,0xFC,0x1F,0xFA,0x0F,0xF6,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,
0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x06,0x00,0x02,0x00,0x00,
0x00,0x02,0x00,0x06,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,
0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x06,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00},
{// 图片数字8
0x00,0x00,0x3F,0xFC,0x5F,0xFA,0x6F,0xF6,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,
0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x60,0x06,0x5F,0xFA,0x3F,0xFC,
0x5F,0xFA,0x60,0x06,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,
0x70,0x0E,0x70,0x0E,0x70,0x0E,0x6F,0xF6,0x5F,0xFA,0x3F,0xFC,0x00,0x00,0x00,0x00},
{// 图片数字9
0x00,0x00,0x3F,0xFC,0x5F,0xFA,0x6F,0xF6,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,
0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x70,0x0E,0x60,0x06,0x5F,0xFA,0x3F,0xFC,
0x1F,0xFA,0x00,0x06,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,0x00,0x0E,
0x00,0x0E,0x00,0x0E,0x00,0x0E,0x1F,0xF6,0x3F,0xFA,0x7F,0xFC,0x00,0x00,0x00,0x00},
{// 图片":" 10
//6X6方点
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xE0,0x07,0xE0,
0x07,0xE0,0x07,0xE0,0x07,0xE0,0x07,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xE0,0x07,0xE0,0x07,0xE0,0x07,0xE0,
0x07,0xE0,0x07,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}
};
unsigned char code kongbai[]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
/*------------------------------------------------
检测忙位
------------------------------------------------*/
void init_timer()
{
TMOD=0x01;//模式1,16位计时
TH0=15536/256;
TL0=15536%256;
EA=1;
ET0=1;
TR0=1;
}
void Check_Busy()
{
RS=0;
RW=1;
E=1;
DataPort=0xff;
while((DataPort&0x80)==0x80);//忙则等待
E=0;
}
/*------------------------------------------------
写命令
------------------------------------------------*/
void Write_Cmd(unsigned char Cmd)
{
Check_Busy();
RS=0;
RW=0;
E=1;
DataPort=Cmd;
DelayUs2x(5);
E=0;
DelayUs2x(5);
}
/*------------------------------------------------
写数据
------------------------------------------------*/
void Write_Data(unsigned char Data)
{
Check_Busy();
RS=1;
RW=0;
E=1;
DataPort=Data;
DelayUs2x(5);
E=0;
DelayUs2x(5);
}
/*------------------------------------------------
液晶屏初始化
------------------------------------------------*/
void Init_ST7920()
{
DelayMs(40); //大于40MS的延时程序
PSB=1; //设置为8BIT并口工作模式
DelayMs(1); //延时
RES=0; //复位
DelayMs(1); //延时
RES=1; //复位置高
DelayMs(10);
Write_Cmd(0x30); //选择基本指令集
DelayUs2x(50); //延时大于100us
Write_Cmd(0x30); //选择8bit数据流
DelayUs2x(20); //延时大于37us
Write_Cmd(0x0c); //开显示(无游标、不反白)
DelayUs2x(50); //延时大于100us
Write_Cmd(0x01); //清除显示,并且设定地址指针为00H
DelayMs(15); //延时大于10ms
//Write_Cmd(0x06); //指定在资料的读取及写入时,设定游标的移动方向及指定显示的移位,光标从右向左加1位移动
DelayUs2x(50); //延时大于100us
}
/*------------------------------------------------
用户自定义字符
------------------------------------------------*/
void CGRAM()
{
int i;
Write_Cmd(0x30);
Write_Cmd(0x40);
for(i=0;i<16;i++)
{
Write_Data(user16x16[i*2]);
Write_Data(user16x16[i*2+1]);
}
}
/*------------------------------------------------
显示用户自定义字符
------------------------------------------------*/
void DisplayCGRAM(unsigned char x,unsigned char y)
{
switch(y)
{
case 1: Write_Cmd(0x80+x);break;
case 2: Write_Cmd(0x90+x);break;
case 3: Write_Cmd(0x88+x);break;
case 4: Write_Cmd(0x98+x);break;
default:break;
}
Write_Data(00);
Write_Data(00);
}
/*------------------------------------------------
显示字符串
x:横坐标值,范围0~8
y:纵坐标值,范围1~4
------------------------------------------------*/
void LCD_PutString(unsigned char x,unsigned char y,unsigned char *s)
{
SetNormalMode();
switch(y)
{
case 1: Write_Cmd(0x80+x);break;
case 2: Write_Cmd(0x90+x);break;
case 3: Write_Cmd(0x88+x);break;
case 4: Write_Cmd(0x98+x);break;
default:break;
}
while(*s&&s)
{
Write_Data(*s);
s++;
}
}
/*------------------------------------------------
清屏
------------------------------------------------*/
void ClrScreen()
{
Write_Cmd(0x01);
DelayMs(15);
}
/*------------------------------------------------
显示图片
------------------------------------------------*/
void LCD_PutGraphic(unsigned char code *img)
{
int i,j;
//显示上半屏内容设置
for(i=0;i<32;i++)
{
Write_Cmd(0x80 + i); //SET 垂直地址 VERTICAL ADD
Write_Cmd(0x80); //SET 水平地址 HORIZONTAL ADD
for(j=0;j<16;j++)
{
Write_Data(*img);
img++;
}
}
//显示下半屏内容设置
for(i=0;i<32;i++)
{
Write_Cmd(0x80 + i); //SET 垂直地址 VERTICAL ADD
Write_Cmd(0x88); //SET 水平地址 HORIZONTAL ADD
for(j=0;j<16;j++)
{
Write_Data(*img);
img++;
}
}
}
/*------------------------------------------------
设置到绘图模式
------------------------------------------------*/
void SetGraphicMode()
{ Write_Cmd(0x34);
Write_Cmd(0x36); //选择8bit数据流 图形模式
DelayUs2x(20);
}
void SetNormalMode()
{
Write_Cmd(0x30); //选择8bit数据流 图形模式
DelayUs2x(20);
}
void huatu(unsigned char x,unsigned char *img)
{
unsigned char i,j;
SetGraphicMode();
for(i=0;i<32;i++)
{ //将屏幕分成上下两个屏幕,上下两个半屏幕的起始行列地址都是0x80,地址向后连续递增
if(i<16) //先写入行地址,再写入列地址 ,在连续写入两个字节数据
{ //列地址的范围是0~15,从0x80开始,最后一个列地址是0x80+15
Write_Cmd(0x80+16+i); //行地址的范围是0~31,从0x80开始,最后一个行地址是0x80+32
Write_Cmd(0x80+x);
}
if(i>=16)
{
Write_Cmd(0x80+i-16);
Write_Cmd(0x88+x);
}
for(j=0;j<2;j++)
{
Write_Data(*img);
img++;
}
}
}
/*------------------------------------------------
主程序
------------------------------------------------*/
main()
{
Init_ST7920();
ds1302_init(); //DS1302初始化
init_timer();
SetGraphicMode(); //设置成绘图模式
LCD_PutGraphic(pic1); //清屏
beep = 0;
while(1)
{
ds1302_read_time(); //读取时间
cal[0] = (time_buf[0]>>4) + '0'; //年 cal[10]={"0001-01-01"};
cal[1] = (time_buf[0]&0x0f) + '0';
cal[2] = (time_buf[1]>>4) + '0';
cal[3] = (time_buf[1]&0x0f) + '0';
cal[5] = (time_buf[2]>>4) + '0'; //月
cal[6] = (time_buf[2]&0x0f) + '0';
cal[8] = (time_buf[3]>>4) + '0'; //日
cal[9] = (time_buf[3]&0x0f) + '0';
dat=(time_buf[7]&0x07); //星期
ss=(time_buf[4]>>4); //时
sg=(time_buf[4]&0x0f);
fs=(time_buf[5]>>4); //分
fg=(time_buf[5]&0x0f);
ms=(time_buf[6]>>4); //秒
mg=(time_buf[6]&0x0f);
huatu(0,num[ss]);
huatu(1,num[sg]);
huatu(3,num[fs]);
huatu(4,num[fg]);
huatu(6,num[ms]);
huatu(7,num[mg]);
if(count>=5 && count<=15)
{
huatu(2,num[10]); //绘画出时钟的冒号:
huatu(5,num[10]);
}
else
{
huatu(2,kongbai);
huatu(5,kongbai);
}
LCD_PutString(0,1,cal);
LCD_PutString(0,4,str1);
LCD_PutString(4,4,str3);
switch(dat)
{
case 1: LCD_PutString(5,1,"星期一"); break;
case 2: LCD_PutString(5,1,"星期二"); break;
case 3: LCD_PutString(5,1,"星期叁"); break;
case 4: LCD_PutString(5,1,"星期四"); break;
case 5: LCD_PutString(5,1,"星期五"); break;
case 6: LCD_PutString(5,1,"星期六"); break;
case 7: LCD_PutString(5,1,"星期天"); break;
default: break;
}
}
}
void Timer0_INT() interrupt 1 //count每次加1,定时50000 us
{
TL0 = 0x00; //设置定时初值
TH0 = 0x4C;
count++;
}
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