www.pudn.com > SEEDVPM642_esam.rar > dm642main.c

/********************************************************************/ 
/*  Copyright 2004 by SEED Incorporated.							*/ 
/*  All rights reserved. Property of SEED Incorporated.				*/ 
/*  Restricted rights to use, duplicate or disclose this code are	*/ 
/*  granted through contract.									    */ 
/*  															    */ 
/********************************************************************/ 
/* 
 *---------dm642main.c--------- 
 * This example uses a timer to read and write the ESAM. 
 */ 
 
 
#include  
#include  
#include  
#include  
#include  
#include  
#include  
 
#include "seeddm642.h" 
#include "seeddm642_esam.h" 
 
/*SEEDDM642的emifa的设置结构*/ 
EMIFA_Config Seeddm642ConfigA ={ 
	   0x00052078,/*gblctl EMIFA(B)global control register value */ 
	   			  /*将CLK6、4、1使能；将MRMODE置1；使能EK2EN,EK2RATE*/ 
	   0xffffffd3,/*cectl0 CE0 space control register value*/ 
	   			  /*将CE0空间设为SDRAM*/ 
	   0x73a28e01,/*cectl1 CE1 space control register value*/ 
	   			  /*Read hold: 1 clock; 
	   			    MTYPE : 0000,选择8位的异步接口 
	   			    Read strobe ：001110；14个clock宽度 
	   			    TA：2 clock; Read setup 2 clock; 
	   			    Write hold :2 clock; Write strobe: 14 clock 
	   			    Write setup :7 clock 
	   			    --					 --------------- 
	   			  	  \		 14c		/1c 
	   			 	   \----------------/ */ 
	   0x22a28a22, /*cectl2 CE2 space control register value*/ 
       0x22a28a42, /*cectl3 CE3 space control register value*/ 
	   0x57115000, /*sdctl SDRAM control register value*/ 
	   0x0000081b, /*sdtim SDRAM timing register value*/ 
	   0x001faf4d, /*sdext SDRAM extension register value*/ 
	   0x00000002, /*cesec0 CE0 space secondary control register value*/ 
	   0x00000002, /*cesec1 CE1 space secondary control register value*/ 
	   0x00000002, /*cesec2 CE2 space secondary control register value*/ 
	   0x00000073 /*cesec3 CE3 space secondary control register value*/	 
}; 
CHIP_Config SEEDDM642percfg = { 
	CHIP_VP2+\ 
	CHIP_VP1+\ 
	CHIP_VP0+\ 
	CHIP_I2C+\ 
	CHIP_MCASP0 
}; 
 
extern far void vectors(); 
Uint8 buffer[100]; 
Uint8 reciveCnt = 0; 
 
/*此程序可将四个采集口的数据经过Video Port0送出*/ 
void main() 
{ 
	Uint32 i; 
	int readflag = 0; 
/*-------------------------------------------------------*/ 
/* perform all initializations                           */ 
/*-------------------------------------------------------*/ 
	/*Initialise CSL，初始化CSL库*/ 
	CSL_init(); 
	CHIP_config(&SEEDDM642percfg); 
/*----------------------------------------------------------*/ 
	/*EMIFA的初始化，将CE0设为SDRAM空间，CE1设为异步空间 
	 注，DM642支持的是EMIFA，而非EMIF*/ 
	EMIFA_config(&Seeddm642ConfigA); 
/*----------------------------------------------------------*/ 
	/*中断向量表的初始化*/ 
	//Point to the IRQ vector table 
    IRQ_setVecs(vectors); 
    IRQ_nmiEnable(); 
/*----------------------------------------------------------*/ 
	seeddm642_esam_open(); 
/*	esam卡的写功能测试*/ 
/*	for(;;) 
	{ 
		for(i = 0;i<8;i++) 
		{ 
			buffer[i] = 0x55; 
		} 
		seeddm642_esam_write((Uint32)(&buffer),8); 
	}*/ 
	for(i= 0;i<100;i++) 
	{ 
		buffer[i] = 0; 
	} 
	seeddm642_esam_reset(); 
	/*读复位的响应数据*/ 
	do//无数据接收到，继续等待 
	{ 
		readflag =  seeddm642_esam_read((Uint32)(&buffer),(Uint32)(&reciveCnt)); 
	}while(readflag == 1); 
	for(i = 0;i