hal4sys.c

Philip ISP1181芯片驱动

#include "usbdefs.h"
#include "Hal4sys.h"

void usbdelay( u32 delay )
{
    u32 i;
    for( i = 0; i < delay; i ++);
}

#define D13_CHIP_DELAY          25 //100              //chip rw delay

void outportb( u32 port, u8 val )
{
    *(( volatile u8  *)port ) = val;
    usbdelay( D13_CHIP_DELAY );
}

u8 inportb( u32 port )
{
    u8 c = *(( volatile u8 *)port );
    usbdelay( D13_CHIP_DELAY );
    return c;
}