PIC16F877的SPI74HC595显示程序

lvyongshjd

#include static volatile int table[20]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xd8,0x80,
?????????????????????????????? 0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e,0x7f,0xbf,0x89,0xff};
volatile unsigned char data;
#define PORTAIT(adr,bit)?? ((unsigned)(&adr)*8+(bit))
static bit LOCK @ PORTAIT(PORTA,5);
void SPIINT()
{
?PIR1=0;
?SSPCON=0X30;
?SSPSTAT=0XC0;
?TRISC=0X00;
}
void initial()
{
?TRISA=0X00;
?INTCON=0X00;
?LOCK=0;
}
void SPILED(int data)
{
?SSPBUF=data;
?do
?{;}
?while(SSPIF==0);
?SSPIF=0;
}
void main()
{
?unsigned int i;
?initial();
?SPIINT();
?for(i=5;i>0;i--)
?{
??data=table;
??SPILED(data);
?}
?LOCK=1;
}

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