bf533_ez-kit_sdram_config.asm

ADI BLACKFIN BF533 的IIC驱动程序

/******************************************************************************/
//
// Name: 	BF533 EZ-KIT video ITU-656 receive mode (8bit) for the Omnivision chip OV6630
//
/*****************************************************************************************

(C) Copyright 2003 - Analog Devices, Inc.  All rights reserved.

File Name:				BF533_EZ-KIT_SDRAM_Config.asm

Date Modified:			01/08/07		TL		Rev 2.0

Software:       		VisualDSP++4.5, Assembler 1.1.0.2, Linker 3.8.0.2

Hardware:				BF533 EZ-KIT Board (rev 1.2), Blackfin EZ-Extender (rev 1.2)

Chip:					ADSP-BF533 REV 0.2

Special Connections:  	None

Purpose:				EZ-KIT SDRAM setup 
				
				
Program Parameters:

********************************************************************************/
#include <defBF533.h>

/*****************************************************************************************/
// Global and extern subroutines
/*****************************************************************************************/
.global		BF533_EZ_KIT_SDRAM_Config;



/*****************************************************************************************/
// Program
/*****************************************************************************************/
.section L1_code;

/* Initalize SDRAM registers. */
BF533_EZ_KIT_SDRAM_Config:

	//SDRAM Refresh Rate Control Register
	P0.L = lo(EBIU_SDRRC);
	P0.H = hi(EBIU_SDRRC);
	R0 = 0x0817 (z);								
	w[P0] = R0;

	//SDRAM Memory Bank Control Register
	P0.L = lo(EBIU_SDBCTL);			
	P0.H = hi(EBIU_SDBCTL);					
	R0.L = 0x0013;								
	R0.H = 0x0000;								
	[P0] = R0;

	//SDRAM Memory Global Control Register	
	P0.L = lo(EBIU_SDGCTL);
	P0.H = hi(EBIU_SDGCTL);
	R0.L = 0x998d;
	R0.H = 0x0091;
	[P0] = R0;	
	
BF533_EZ_KIT_SDRAM_Config.END:
RTS;
/*******************************************************************************/