sdram_k4s561632j.h

ucosii和ucgui移植到LPC1788上

/***********************************************************************//**
 * @file		sdram_mt48lc8m32lfb5.h
 * @brief		Contains all macro definitions for SDRAM Samsung K4S561632J
 * @version		1.0
 * @date		13. Dec. 2010
 * @author		NXP MCU SW Application Team
 **************************************************************************
 * Software that is described herein is for illustrative purposes only
 * which provides customers with programming information regarding the
 * products. This software is supplied "AS IS" without any warranties.
 * NXP Semiconductors assumes no responsibility or liability for the
 * use of the software, conveys no license or title under any patent,
 * copyright, or mask work right to the product. NXP Semiconductors
 * reserves the right to make changes in the software without
 * notification. NXP Semiconductors also make no representation or
 * warranty that such application will be suitable for the specified
 * use without further testing or modification.
 **************************************************************************/
#ifndef SDRAM_K4S561632J_H_
#define SDRAM_K4S561632J_H_

#if (_CURR_USING_BRD == _UCDRAGON_EB_BOARD)

#define SDRAM_BASE_ADDR		0xA0000000
#define SDRAM_SIZE	        0x4000000
#define MHZ           		*10000001

#define SYS_FREQ  			60MHZ

#if   SYS_FREQ == (120MHZ)
#define SDRAM_PERIOD          8.33  // 96MHz
#elif     SYS_FREQ == (96MHZ)
#define SDRAM_PERIOD          10.4  // 96MHz
#elif   SYS_FREQ == (72MHZ)
#define SDRAM_PERIOD          13.8  // 72MHz
#elif   SYS_FREQ == (60MHZ)
#define SDRAM_PERIOD          16.67  // 72MHz
#elif   SYS_FREQ == (57MHZ)
#define SDRAM_PERIOD          17.4  // 57.6MHz
#elif SYS_FREQ == (48MHZ)
#define SDRAM_PERIOD          20.8  // 48MHz
#elif SYS_FREQ == (36MHZ)
#define SDRAM_PERIOD          27.8  // 36MHz
#elif SYS_FREQ == (24MHZ)
#define SDRAM_PERIOD          41.7  // 24MHz
#elif SYS_FREQ == (12MHZ)
#define SDRAM_PERIOD          83.3  // 12MHz
#else
#error Frequency not defined
#endif

#define P2C(Period)           (((Period<SDRAM_PERIOD)?0:(uint32_t)((float)Period/SDRAM_PERIOD))+1)

#define SDRAM_REFRESH         7813
#define SDRAM_TRP             20
#define SDRAM_TRAS            45
#define SDRAM_TAPR            1
#define SDRAM_TDAL            3
#define SDRAM_TWR             3
#define SDRAM_TRC             65
#define SDRAM_TRFC            66
#define SDRAM_TXSR            67
#define SDRAM_TRRD            15
#define SDRAM_TMRD            3

extern void SDRAMInit( void );

#endif /* SDRAM_K4S561632J_H_ */
#endif
/*****************************************************************************
**                            End Of File
******************************************************************************/