play.c

来自「51系列单片机的汇编程序包」· C语言 代码 · 共 28 行

#define uchar  unsigned char
#define uint   unsigned int

uchar xdata *RecCs = 0x8e18;
uchar code  PlayTab[40] =
{0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,
 0xd0,0xd1,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xdb,0xdc,0xdd,0xde,0xdf,
 0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,
};

void Delay(uchar time)
{
  uchar i;
  while(time-- != 0) for(i=0;i<255;i++);
}

 main()
{
    uchar count = 0;
    *RecCs = 0xff;
    Delay(2);
    *RecCs = PlayTab [count];
    Delay(50);
    *RecCs = 0x80;
    Delay (50);
}