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发表于 2013-11-15 14:00:25
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本帖最后由 cityfuture 于 2013-11-15 14:16 编辑
STM32_Study 发表于 2013-11-15 05:47
一个是12T的,一个是1T的。你可以在烧写芯片的时候修改配置。或者是修改程序,增加延时12倍 ...
请问改了程序后,为何出现了,显示["55"]后再显示["1"] 后边那个5不消失变成 15,显示["-10"],再显示["1“]变成110 为何,如果在前加一句DisplayListChar[1,2" "]会出现闪烁,但不会出现拖位现象
void WriteDataLCD(unsigned char WDLCD)
{
ReadStatusLCD(); //检测忙
LCD_RS = 1;
LCD_Data = WDLCD;
//delay();
LCD_RW = 0;
LCD_E = 1; //若晶振速度太高可以在这后加小的延时
LCD_E = 1; //延时
// delay();
LCD_E = 0; //89c52中写法不同,89c52请使用原液晶写法
}
/***********写指令********************************************************/
void WriteCommandLCD(unsigned char WCLCD,BuysC) //BuysC为0时忽略忙检测
{
if (BuysC) ReadStatusLCD(); //根据需要检测忙
LCD_RS = 0;
LCD_Data = WCLCD;
LCD_RW = 0;
LCD_E = 1;
LCD_E = 1;
//delay();
LCD_E = 0;
}
/***********读数据********************************************************/
unsigned char ReadDataLCD(void)
{
LCD_RS = 1;
LCD_RW = 1;
LCD_E = 1;
LCD_E = 1;
LCD_E = 0;
return(LCD_Data);
}
/***********读状态*******************************************************/
unsigned char ReadStatusLCD(void)
{
LCD_Data = 0xFF;
LCD_RS = 0;
LCD_RW = 1;
LCD_E = 0;
LCD_E = 0;
LCD_E = 1;
while (LCD_Data & Busy); //检测忙信号
return(LCD_Data);
}
/***********初始化********************************************************/
void LCDInit(void)
{
LCD_Data = 0;
WriteCommandLCD(0x38,0); //三次模式设置,不检测忙信号
WriteCommandLCD(0x38,0);
WriteCommandLCD(0x38,0);
WriteCommandLCD(0x38,1); //显示模式设置,开始要求每次检测忙信号
WriteCommandLCD(0x08,1); //关闭显示
WriteCommandLCD(0x01,1); //显示清屏
WriteCommandLCD(0x06,1); //显示光标移动设置
WriteCommandLCD(0x0C,1); //显示开及光标设置
}
void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData)
{
Y &= 0x1;
X &= 0xF; //限制X不能大于15,Y不能大于1
if (Y) X |= 0x40; //当要显示第二行时地址码+0x40;
X |= 0x80; //算出指令码
WriteCommandLCD(X, 0); //这里不检测忙信号,发送地址码
Delay5Ms();
WriteDataLCD(DData);
}
void DisplayListChar(unsigned char X, unsigned char Y, unsigned char *DData)
{
unsigned char ListLength;
ListLength = 0;
Y &= 0x1;
X &= 0xF; //限制X不能大于15,Y不能大于1
while (DData[ListLength]>=0x20){ //若到达字串尾则退出
if (X <= 0xF){ //X坐标应小于0xF
DisplayOneChar(X, Y, DData[ListLength]); //显示单个字符
ListLength++;
X++;
}
}
}
/***********短延时********************************************************/
void Delay5Ms(void)
{
unsigned int TempCyc = 5552;
while(TempCyc--);
}
/***********长延时********************************************************/
void Delay400Ms(void)
{
unsigned char TempCycA = 5;
unsigned int TempCycB;
while(TempCycA--){
TempCycB=7269;
while(TempCycB--);
}
} |
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