学习C51单片机——LED点阵屏显示爱心（学习笔记Keil5）
#include <>
sbit RCL = P3^5; //定义RCLK串口
sbit SCK = P3^6; //定义SRCLK串口
sbit SER = P3^4; //定义SER串口
void Delay(unsigned int xms)//延时函数
{
unsigned char i, j;
while(xms--)
{
i = 2;
j = 239;
do
{
while (--j);
} while (--i);
}
}
void SendByte(unsigned char data1)//行显示
{
unsigned char a;
SCK = 1;
RCL = 1;
for(a=0;a<8;a++) //发送8位数
{
SER = data1 >> 7; //从最高位开始发送
data1 <<= 1;
SCK = 0; //发送时序
SCK = 1;
}
RCL = 0;
RCL = 1;
}
void main()
{
while(1)
{
P0 = 0xBF;//1011 1111
SendByte(0x30);//0011 0000
Delay(1);
SendByte(0x00);//0000 0000
P0 = 0xFF;
Delay(1);
P0 = 0xDF;//1101 1111
SendByte(0x48);//0100 1000
Delay(1);
SendByte(0x00);//0000 0000
P0 = 0xFF;
P0 = 0xEF;//1110 1111
SendByte(0x24);//0010 0100
Delay(1);
SendByte(0x00);//0000 0000
P0 = 0xFF;
P0 = 0xF7;//1111 0111
SendByte(0x24);//0010 0100
Delay(1);
SendByte(0x00);//0000 0000
P0 = 0xFF;
P0 = 0xFB;//1111 1011
SendByte(0x48);//0100 1000
Delay(1);
SendByte(0x00);//0000 0000
P0 = 0xFF;
P0 = 0xFD;//1111 1101
SendByte(0x30);//0011 0000
Delay(1);
SendByte(0x00);//0000 0000
P0 = 0xFF;
Delay(1);
}
}