displed.c

来自「病理冰冻切片机C51程序,KEIL C编译环境」· C语言 代码 · 共 51 行

#include "mqb.h"
BYTE code BdSeg[]={0xC0,0xF9,0xA4,0xB0, 
                   0x99,0x92,0x82,0xF8, 
                   0x80,0x90,0x88,0x83, 
                   0xC6,0xA1,0x86,0x8E,
                   0xFF,0xBF}; 
/*
;              b0
;             ----
;          b5| b6 |b1
;             ----        small
;          b4| b3 |b2
;             ---- .b7
*/

extern BYTE DispBuf[];

void DispLED()
{
BYTE i,j,k;
bit ib;
  LEDSTR=0;
  LEDSTR1=0;
  for (i=0;i<2;i++)
  {
    k=DispBuf[i];
    for (j=0;j<8;j++)
    {
     LEDCLK=0;
     ib=k&0x80;
     LEDDATA=ib;
     LEDCLK=1;     
     k=k<<1;
    }
  }  
  for (i=2;i<8;i++)
  {
    ACC=DispBuf[i]&0x1f;
    k=BdSeg[ACC];
    for (j=0;j<8;j++)
    {
     LEDCLK=0;
     ib=k&0x80;
     LEDDATA=ib;
     LEDCLK=1;     
     k=k<<1;
    }
  }
  LEDSTR=1;
  LEDSTR1=1;
}