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GPIO 的代码
gpio.c
/* $Id: gpio.c,v 1.21 2002/12/02 08:11:41 starvik Exp $
*
* Etrax general port I/O device
*
* Copyright (c) 1999, 2000, 2001, 2002 Axis Communications AB
*
* Authors: Bjorn Wesen (initia
gpio.h
#undef CONFIG_BIT_SA1100_GPIO
gpio.h
#undef CONFIG_L3_BIT_SA1100_GPIO
gpio.h
#undef CONFIG_SCx200_GPIO
gpio.h
/****************************************************************************/
/*
* linux/include/asm-arm/arch-l7200/gpio.h
*
* Registers and helper functions for the L7200 Link-Up Syste
gpio.h
/******************** (C) COPYRIGHT 2003 STMicroelectronics ********************
* File Name : gpio.h
* Author : MCD Application Team
* Date First Issued : 08/06/2003
* Descr
gpio.c
/******************** (C) COPYRIGHT 2003 STMicroelectronics ********************
* File Name : gpio.c
* Author : MCD Application Team
* Date First Issued : 06/08/2003
* Descr
gpio.h
/******************************************************************************
*
* Motorola Inc.
* (c) Copyright 2002 Motorola, Inc.
* ALL RIGHTS RESERVED.
*
***********************************
gpio.vhd
----------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2004 GAISLER RESEARCH
--
-- This program is free so
gpio.c
#define GRGPIOADR 0x80000500;
static volatile int *pio = (int *) GRGPIOADR;
int gpio_test(void)
{
/*
* pio[0] = din
* pio[1] = dout
* pio[2] = dir
* pio