main.c

来自「LED汉字显示屏显示部分（子模块）的程序代码。」· C语言 代码 · 共 58 行

#include "reg52.h"
#include <ABSACC.H>

typedef unsigned char uchar;
typedef unsigned int  uint;
typedef unsigned long ulong;
#define FALSE 0
#define TRUE  ~FALSE

#define STARTROW  0x07ff

void kmg(void)
{KMG=0;
 KMG=1;
}

//void delay(uint i)
//{while(i!=0)i--;
//}

void uart_init(void)
{PCON=0x00;   //SMOD--------GF1GF0PDIDL=00000000;波特率未加倍
 SCON=0x00;   //SM0SM1SM2RENTB8RB8TIRI=01010000B;串口方式1
 ES=0;
}

void init(void)
{EA=0;
 P0=0xff;
 P1=0xff;
 P2=0xff;
 P3=0xff;
 uart_init();
}

void main(void)
{uchar i,j,tempb;
 uint tempw;
 init();
 while(1)
 {kmg();
  tempb=XBYTE[STARTROW];
  for(j=0;j<16;j++,tempb++)
  {tempb%=32;
   tempw=(uint)(tempb*32+32);
   for(i=0;i<32;i++)
   {SBUF=XBYTE[--tempw];
    while(!TI);
    TI=0;
   }
   P1=j;
   OUT=1;
   OUT=0;
  }
 }
}