2410loader.c

arm9的bootloader大家下载解压缩即可看到

/************************************************
 * NAME    : 2410loader.C			*
 * DESC    : 					*
 * History : 2002.02.25 ver 0.0			*
************************************************/

#include <stdlib.h>
#include <string.h>
#include "option.h"
#include "def.h"
#include "2410addr.h"
#include "2410slib.h"
#include "2410addr.h"
#include "k9f1208.h"
//#include "mmu.h"
#include "inc/serial.h"
#include "inc/xmodem.h"
#include "k9f1208.h"

#define DOWNLOAD_ADDRESS _RAM_STARTADDRESS
void ChangeClockDivider(int hdivn,int pdivn);
void ChangeMPllValue(int mdiv,int pdiv,int sdiv);
void Uart_SendString(char *pt);
void Uart_Init(int pclk,int baud);
void Uart_Printf(char *fmt,...);
void (*run)(void)=(void (*)(void))(_RAM_STARTADDRESS);
void Port_Init(void);
int NF_ReadPage(U32 block,U32 page,U8 *buffer);
void NF_Init(void);
U8 *downPt;


void Main(void)
{
    size_t retlen;
    int i,j,k=0,modem=1;
    char c;
    char *buf=(char *)0x30008000;
    char file_name[255] = { 0, };
    long size=0x000cc000;
    unsigned long boot_delay=0x30000000;

    MMU_EnableICache();
    
    ChangeClockDivider(1,1);	    // 1:2:4
       
    ChangeMPllValue(0x5c,0x4,0x0);  //Fin=12MHz FCLK=200MHz  
          
    Port_Init();
    
    Uart_Init(PCLK, 115200);
    
    downPt=(U8 *)0x30008000;    
   
    Uart_SendString("\nPress Return to start the uCOS now, any other key for DownLoad");
       
	c = awaitkey(boot_delay, NULL);
	if (((c != '\r') && (c != '\n') && (c != '\0'))) {
	 retlen=download_file(buf, size, modem, file_name);

	 if (retlen == 0) {
		Uart_SendString("Failed downloading file\n");
		return;
	  }
	  
	 Uart_Printf("Downloaded file at 0x%08lx, size = %d bytes\n", buf, retlen);
	 K9S1208_Program(retlen);//write flash
	}
	
	NF_Init();
    j=4044;
    while(j<4054)	    // Read 1~807 block(13635072B) for WinCE image    
    {
	  	for(i=0;i<32;i++)   // Read 32 page
	  		{  
	    	 NF_ReadPage(j, i, (U8 *)downPt);
  	   		 downPt += 512;	    // Next page
  	    	 k=1;
	  		}
  	 j++;
    }
    Uart_SendString("\nrun");
    run();
}