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標題: 求牛人幫我看看這個程序，為什么一個燈都不亮 [打印本頁]

作者: LHYF 時間: 2013-7-23 15:40
標題: 求牛人幫我看看這個程序，為什么一個燈都不亮
//用AVR點亮32*32LED點陣點陣里集成74hc595 和74hc138芯片
#include<avr/io.h>
#include<util/delay.h>
#include<avr/interrupt.h>
#include<avr/pgmspace.h>
#define SI1    PORTC|=(1<<PC0)
#define SI0    PORTC&=~(1<<PC0)
#define G1()    PORTC|=(1<<PC1)                   // HC_595輸出使能控制端置1
#define G0()    PORTC&=~(1<<PC1)                   // HC_595輸出使能控制端置0
#define RCK1() PORTC|=(1<<PC2)                   // HC_595存儲寄存器時鐘輸入置1
#define RCK0() PORTC&=~(1<<PC2)                   // HC_595存儲寄存器時鐘輸入置0
#define SCK1() PORTC|=(1<<PC3)                   // HC_595移位寄存器時鐘輸入置1
#define SCK0() PORTC&=~(1<<PC3)                   // HC_595移位寄存器時鐘輸入置0
#define SCLR1() PORTC|=(1<<PC4)                   // HC_595移位寄存器清零輸入置1
#define SCLR0() PORTC&=~(1<<PC4)                   // HC_595移位寄存器清零輸入置0
#define OE1()    PORTA|=(1<<PA5)                   // HC_138使能置1
#define OE0()    PORTA&=~(1<<PA5)                   // HC_138使能置0
long  scan_date0[128]={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 };
unsigned char scan_date1[32]={0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
                           0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f}; //行
void delay(unsigned int ms )
{
   while(ms--)
  _delay_ms(1);
}

//初始化函數
void init()
{
                                       //HC_595初始化
DDRC=0x1F;
PORTC=0xFF;
G0() ;                            //使能HC_595輸出使能控制端
SCK0();                            // HC_595移位寄存器時鐘輸入端口置低電平
RCK0();
SCLR0();
SCLR1();
                                    // HC_595存儲寄存器時鐘輸入
                                       //HC_138初始化
DDRA=0x3F;
PORTA=0xFF;
}

//HC_595列掃描
void HC_595( unsigned int date)
{
unsigned char i;

for(i=0;i<8;i++)
{    G0();
   SCK0();
      if(date&0x80)
      PORTC|=(1<<PC0);             //串行數據輸入
   else
            PORTC&=~(1<<PC0);

      date<<=1;
SCK1();
   }

RCK0();                            //上升沿鎖存數據輸出
      RCK1();
         G1();                            //關閉輸出使能控制端



}

int main()
{ init();
unsigned int i=0;
unsigned int m=3;
unsigned int n=0;
for(i=0;i<=31;i++)
{
   OE0();                               //打開HC_138使能
      PORTA=scan_date1[i];
  for(n=m-3;n<=m;n++)
{ if(n<=127)
         {
   HC_595(scan_date0[n]);
         m=m+4;
   }

   delay(4);
}
   // OE1();                                  //關閉HC_138使能


}

}

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