写单片机AT89C52关于点阵显示16*64的keil程序

以下是一个基本的AT89C52点阵显示16*64的Keil程序，其中使用了74HC138译码器来控制行选择，74HC595移位寄存器来控制列数据：

#include<reg52.h>
#include<intrins.h>

#define uchar unsigned char
#define uint unsigned int

sbit RCLK = P1^0; // 74HC595 RCLK引脚
sbit SRCLK = P1^1; // 74HC595 SRCLK引脚
sbit SER = P1^2; // 74HC595 SER引脚
sbit OE = P2^5; // 输出使能引脚
sbit RS = P2^6; // 74HC138 RS0引脚
sbit RW = P2^7; // 74HC138 RW0引脚
sbit EN = P3^5; // 74HC138 EN引脚

uchar code table[]={ // 16*64点阵的显示数据
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,
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,
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,
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};

void delay(uint x) // 延时函数
{
    uint i,j;
    for(i=x;i>0;i--)
        for(j=110;j>0;j--);
}

void write595(uchar dat) // 写入74HC595移位寄存器
{
    uchar i;
    for(i=0;i<8;i++)
    {
        SRCLK = 0;
        SER = dat & 0x80;
        dat <<= 1;
        SRCLK = 1;
    }
    RCLK = 0;
    RCLK = 1;
}

void init138() // 初始化74HC138译码器
{
    RS = 0;
    RW = 0;
    EN = 0;
}

void main()
{
    uchar i,j,k;
    OE = 0; // 输出使能
    while(1)
    {
        for(i=0;i<64;i++) // 64列
        {
            init138(); // 初始化译码器
            write595(0); // 清零数据
            write595(0);
            write595(0);
            write595(0);
            RS = i & 0x03; // 行选择
            RW = (i >> 2) & 0x03;
            EN = (i >> 4) & 0x03;
            for(j=0;j<16;j++) // 16行
            {
                k = table[i*16+j]; // 获取点阵数据
                write595(~k); // 取反输出
            }
            delay(10); // 延时控制刷新速度
        }
    }
}

需要注意的是，这只是一个基本的程序，具体的实现方式可能会因为不同的点阵屏幕型号而有所不同。因此，在编写程序之前，需要详细阅读点阵屏幕的数据手册，并根据手册中的数据格式和控制方式来编写程序。同时，还需要根据具体情况选择合适的外部电路和器件来实现程序。