ext_ram.ini

来自「ucos_ii在mini2440上的移植KEIL编译环境」· INI 代码 · 共 35 行

/******************************************************************************/
/* Ext_RAM.INI: External RAM (SDRAM) Initialization File                      */
/******************************************************************************/
// <<< Use Configuration Wizard in Context Menu >>>                           // 
/******************************************************************************/
/* This file is part of the uVision/ARM development tools.                    */
/* Copyright (c) 2005-2008 Keil Software. All rights reserved.                */
/* This software may only be used under the terms of a valid, current,        */
/* end user licence from KEIL for a compatible version of KEIL software       */
/* development tools. Nothing else gives you the right to use this software.  */
/******************************************************************************/





FUNC void Init (void) {

  _WDWORD(0x4A000008, 0xFFFFFFFF);      // Disable All Interrupts

  _WDWORD(0x53000000, 0x00000000);      // Disable Watchdog Timer
  
                                        // Clock Setup 
                                        // FCLK = 400 MHz, HCLK = 100 MHz, PCLK = 50 MHz
  _WDWORD(0x4C000000, 0x0FFF0FFF);      // LOCKTIME
  _WDWORD(0x4C000014, 0x00000005);      // CLKDIVN
  _WDWORD(0x4C000004, 0x0005C011);      // MPLLCON
  _WDWORD(0x4C000008, 0x00038022);      // UPLLCON
  _WDWORD(0x4C00000C, 0x001FFFF0);      // CLKCON

                                        // Memory Controller Setup for SDRAM
}

	 
Init();                                 // Initialize memory