static unsigned char FFW[] =
{
	0x01, 0x03, 0x02, 0x06, 0x04, 0x0c, 0x08, 0x09
};

static unsigned char REV[] =
{
	0x09, 0x08, 0x0c, 0x04, 0x06, 0x02, 0x03, 0x01
};



void SETP_MOTOR_FFW( unsigned char n )//正转n圈
{
	unsigned char i, j;
	for ( i = 0; i < 5 * n; i++ )
	{
		for ( j = 0; j < 8; j++ )
		{
			PORTD = FFW[j];
			__delay_ms( 25 );
		}
	}
}


void SETP_MOTOR_REV( unsigned char n )//反转n圈
{
	unsigned char i, j;
	for ( i = 0; i < 5 * n; i++ )
	{
		for ( j = 0; j < 8; j++ )
		{
			PORTD = REV[j];
			__delay_ms( 25 );
		}
	}
}

使用例子：

TRISD=0X00;
SETP_MOTOR_FFW( 3 );