flash.c

2410proflash,对s3c2410的nor flash进行编程的参考

//====================================================================
// File Name : flash.c
// Function  : S3C2440 Flash Program
// Program   : Kong, In Wook (KIW)
// Date      : May 30, 2002
// Version   : 0.0
// History
//   0.0 : Programming start (May 30,2002) -> KIW
//          Arrangement source code(8/01/2002)-> SOP 
//			Edited for SMDK2440(07/07/2003) -> Junon
//====================================================================

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

#include "mmu.h"
#include "strata32.h"

#include "xmodem.h"


static int DownloadData(void);

U32 downloadAddress; 
U32 downloadProgramSize = 0;


//==========================================================================================
void ProgramFlash(void)
{
    char key;

    Uart_Printf("\n[2410D 烧写Intel Flash ]");
    Uart_Printf("\nThe program buffer : 0x31000000 ~ 0x31ffffff");
    Uart_Printf("\n按任意键继续!");
    
    while(!Uart_Getch());
    
    downloadAddress=0x31000000;
    downloadProgramSize=0x0;

   
	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;
    }
    
    Program28F128J3A();
}


static int DownloadData(void)
{
	char *pBuf = (char*)downloadAddress;
	size_t sizeBuf = 1024*1024*4;
	unsigned long nDownloadSize;

	Uart_Printf("\n请使用超级终端(XMODEM)发送文件。");
	Uart_Printf("\n开始下载...");
	nDownloadSize = xmodem_receive(pBuf, sizeBuf);
	if(nDownloadSize > 0)
	{
		downloadProgramSize = (U32)nDownloadSize;
		Uart_Printf("\n下载完成。");
		return 1;
	}
	else
	{
		downloadProgramSize = 0;
		Uart_Printf("\n下载失败。");
		return 0;
	}
}