各位有对LCD1602屏比较熟悉的么 我的屏点的时候显示出现了...
1602的液晶采用4位驱动的方式 这个屏只能4位驱动显示出来的字母数字都是镜像的 摸不清楚怎么回事 有没有懂的朋友指点指点！
write_com(0x33); //16*2显示，5*7点阵，8位数据
delay(100);
write_com(0x32);
delay(100);
write_com(0x28);
delay(100);
write_com(0x0c); //显示开，关光标
delay(100);
write_com(0x04); //移动光标
delay(100);
while(0);
write_com(0x01); //清除LCD的显示内容
delay(100);
以上是初始化部分的函数！ #include "LCD1602.H"
//mode:bit 4
#define LCD_DATA_DDRDDRF
#define LCD_DATA_PORT PORTF
#define LCD_RS_DDR DDRF
#define LCD_RS_PORT PORTF
#define LCD_EN_DDR DDRF
#define LCD_EN_PORT PORTF
#define LCD_RS BIT(PF2)
#define LCD_EN BIT(PF3)
#define LCD_DATA BIT(PF2) | BIT(PF2) | BIT(PF2) | BIT(PF2)
void LCDWriteEn(void)
{
LCD_EN_PORT |=LCD_EN; //enhigh
delayNus(10);
LCD_EN_PORT &= ~LCD_EN; //enlow
}
void LCDWriteCommandorWriteData(unsigned char CommandorData,unsigned char Mode)
{
delayNus(26);
switch (Mode)
{
case 0: LCD_RS_PORT &= ~LCD_RS; break;//RS在写命令时候为L
case 1: LCD_RS_PORT |=LCD_RS; break;//RS在写命令时候为H
}
LCD_DATA_PORT &= 0X0F;
LCD_DATA_PORT |= CommandorData & 0XF0; //把数据准备好
LCDWriteEn();
CommandorData = CommandorData << 4;
LCD_DATA_PORT &= 0x0f;
LCD_DATA_PORT |= CommandorData & 0XF0; //把数据准备好
LCDWriteEn();
}
void LCDUsePortInitial(void)
{
LCD_DATA_DDR |= LCD_DATA;
LCD_RS_DDR |= LCD_RS;
LCD_EN_DDR |= LCD_EN;
}
//--------------------------------------------------
//函数名称:初始化
// ->RS RW D7 D6 D5 D4 D3 D2 D1 D0
//清屏 ->0000000001
//功能设置 ->0000001DL NF
//显示开关控制->00001DCB**
//输入方式 ->00000001 I/D S
//--------------------------------------------------
void LCDdisplayInitial(void)
{
LCDWriteCommandorWriteData(0x28,0); LCDWriteEn();
LCDWriteCommandorWriteData(0x28,0); delayNms(10);
LCDWriteCommandorWriteData(0x01,0); delayNms(10);
LCDWriteCommandorWriteData(0x0c,0); delayNms(10);
}
//----------------------------------
//函数名称:指定位置写数据
//入口参数:unsigned char X,unsigned char Y,unsigned char dataSend
//返回的值:--
//----------------------------------
void LCDWriteoneChar(unsigned char X,unsigned char Y,unsigned char dataSend)
{
LCDWriteCommandorWriteData((0x80 + (Y << 6) + X),0);
LCDWriteCommandorWriteData(dataSend,1);
}
//----------------------------------
//函数名称:写字符串
//入口参数:unsigned char X,unsigned char Y,unsigned char *dataSend
//返回的值:--
//----------------------------------
void LCDWriteString(unsigned char X,unsigned char Y,unsigned char *dataSend)
{
LCDWriteCommandorWriteData((0x80 + (Y << 6) + X),0);
while(*dataSend != '\0')
{
LCDWriteCommandorWriteData(*dataSend,1);
dataSend++;
}
}
//----------------------------------
//函数名称:写自定义字符
//入口参数:unsigned char Address,unsigned char *Per
//返回的值:--
//备 注:地址Address范围<0-7>
//----------------------------------
void LCDWriteCgram(unsigned char Address,unsigned char *Per)
{
if (Address > 7)
{
Address = 0;
}
LCDWriteCommandorWriteData(0x40 + (Address * 8),0); //写入自定义数据初始地址
while(*Per != '\0')
{
LCDWriteCommandorWriteData(*Per,1); //写如自定义数据
Per++;
}
}
抄的~参考吧。可用 HeP028 发表于 2013-1-8 22:23 static/image/common/back.gif
抄的~参考吧。可用
谢谢LS的这位朋友 屏现在能正常的点 只是点出来的字符是镜像的！ 查阅了很多1602的寄存器配置中没有对字符做镜像处理的配置！所以觉得无从下手！
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