标题: 为什么LCD1602仿真无显示,且P0.5端口有问题,新手求解决方式? [打印本页]

作者: IJLG    时间: 2020-3-24 13:30
标题: 为什么LCD1602仿真无显示,且P0.5端口有问题,新手求解决方式?

#define LCD_DB P0
sbit LCD_E=P2^0;
sbit LCD_RW=P2^1;
sbit LCD_RS=P2^2;
u8 disp[]=" dripping speed ";

void LCD_init()
{
LCD_write_command(0x38);
LCD_write_command(0x0c);
LCD_write_command(0x06);
LCD_write_command(0x01);
LCD_write_command(0x80);
}

void LCD_write_command(unsigned char com)
{
LCD_E=0;   
LCD_RS=0;
LCD
_RW=0;
LCD_DB=com;
delay(1000);
LCD_E=1;
delay(5000)
LCD_E=0;
}

void LCD_write_data(unsigned char dat)
{
LCD_E=0;
LCD_RS=1;
LCD_RW=0;
LCD_DB=dat
delay(1000);
LCD_E=1
delay(5000)
LCD_E=0;
}
         
void main()
{
u8 i;
LCD_init();
for(i=0;i<16;i++)
{
  LCD_write_data(disp);
}
while(1);
}




作者: xxpp2011    时间: 2020-3-24 16:03
P0口接上拉电阻
作者: 华夏哈哈哈    时间: 2020-3-24 18:08
需要数据指针,你的主程序没有数据指针,不是初始化以后就直接写入的
作者: IJLG    时间: 2020-3-24 18:37
xxpp2011 发表于 2020-3-24 16:03
P0口接上拉电阻

感谢





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