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void SendTo595(unsigned char byteData)
{
char i=0;
for(;i<8;i++)
{
if(byteData&0x80)
{
HC_595_SDA_H;
}
else
{
HC_595_SDA_L;
}
byteData= byteData<<1;
HC_595_LCK_H; //上升沿，讓串行輸入時鐘變?yōu)楦唠娖剑⒀訒r2個時鐘周期
__NOP();
__NOP();
HC_595_LCK_L; //變?yōu)榈碗娖剑瑸橄麓螠?zhǔn)備
}
}
while(1)
{
SendTo595(0xff);//F
SendTo595(0xff);//E
SendTo595(0xff);//d
SendTo595(0xff);//C
SendTo595(0xff);//B
SendTo595(0xff);//A
HC_595_RCK_H;
__NOP();
__NOP();
HC_595_RCK_L;
}
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