dm642main.c

这是一个在DM642上测试ESAM程序的软件

/********************************************************************/
/*  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 <stdio.h>
#include <csl.h>
#include <std.h>
#include <csl_emifa.h>
#include <csl_irq.h>
#include <csl_chip.h>
#include <csl_timer.h>

#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<reciveCnt;i++)
	{
		printf("recieve data is : 0x%x\n",buffer[i]);
	}
	for(;;){}	
}