flash.c

SAMSUNG官方发布的S3C2410开发板的最完整测试程序。本人用ADS1.2对其进行了优化和改进

#include <string.h>
#include "def.h"
#include "option.h"
#include "2410addr.h"
#include "2410lib.h"
#include "2410slib.h" 

#include "mmu.h"
#include "am29f800.h"
//#include "strata.h"
//#include "strata32.h"



static int DownloadData(void);

#if 1
// removed because of multiple definition
extern U32 downloadAddress; 
extern U32 downloadProgramSize;
#else
   U32 downloadAddress; 
   U32 downloadProgramSize;
#endif

void *flashType[][2]=
{
	(void *)ProgramAM29F800,     "AM29LV800BB x1      ",
//	(void *)Program28F640J3A,    "28F640J3A x2        ",    
//	(void *)Program28F128J3A,    "28F128J3A x2        ",    
	0,0
};




void ProgramFlash(void)
{
	int i=0,whichFlash;
	char key;

	Uart_Printf("\n*** NOR Flash Memory writer ver 0.0 ***\n\n");
	Uart_Printf("The program buffer: 0x3100000 ~ 0x33ff0000\n");
	
	downloadAddress=0x31000000;
	downloadProgramSize=0x0;

	//MMU_Init();
	ChangeRomCacheStatus(RW_NCNB);
	
	while(1)
	{   //display menu
		Uart_Printf("%c: %s",'a'+i,flashType[i][1]);
		i++;
		if((int)(flashType[i][0])==0){Uart_Printf("\n");break;}
		if((i%4)==0)Uart_Printf("\n");
	}

	Uart_Printf("Select the type of a flash memory? ");
	whichFlash=Uart_Getch()-'a';
	Uart_Printf("\n");

	if( i<0 || (i>=(sizeof(flashType)/8)) )
	return;

	Uart_Printf("Do you want to download through UART0 from 0x%x? [y/n]:",downloadAddress);
	key=Uart_Getch();
	Uart_Printf("%c\n",key);
	if(key=='y')
	{
		if(!DownloadData())return;
	}

	( (void (*)(void))(flashType[whichFlash][0]) )();

}




static int DownloadData(void)
{
	int i,tmp;
	U16 checkSum=0,dnCS;
	U32 fileSize=10;
	U8 *downPt;

	downPt=(U8 *)downloadAddress;
   
	Uart_Printf("\ndownloadAddress=%x\n",downloadAddress);

	Uart_Printf("Download the plain binary file(.BHC) to be written\n");
	Uart_Printf("The file format: <n+6>(4)+(n)+CS(2)\n");
	Uart_Printf("To transmit .BIN file: wkocm2 xxx.BIN /1 /d:1\n");
	Uart_Printf("Download methods: COM:8Bit,NP,1STOP\n");
 
	Uart_Printf("\nSTATUS:");
	rINTMSK=BIT_ALLMSK;
	
	tmp=RdURXH0(); //To remove overrun error state.

	i=0;    
	while(i<fileSize)
	{
	while(!(rUTRSTAT0&0x1));
	*(downPt+i)=RdURXH0();
	if(i==3)
	{
		fileSize=*((U8 *)(downloadAddress+0))+
		(*((U8 *)(downloadAddress+1))<<8)+
		(*((U8 *)(downloadAddress+2))<<16)+
		(*((U8 *)(downloadAddress+3))<<24);
	}
	
	if((i%1000)==0)WrUTXH0('#');
	i++;
	}

	downloadProgramSize=fileSize-6;

	for(i=4;i<(fileSize-2);i++)
	{
		checkSum+=*((U8 *)(i+downloadAddress));
	}

	dnCS=*((U8 *)(downloadAddress+fileSize-2))+
		  (*( (U8 *)(downloadAddress+fileSize-1) )<<8);

	if(checkSum!=dnCS)
	{
		Uart_Printf("Checksum Error!!! MEM:%x DN:%x\n",checkSum,dnCS);
	return 0;
	}

	Uart_Printf("\nDownload O.K.\n");
	return 1;
}