www.pudn.com > ADS_s3c2440a.rar > am29f800.c

#include  
#include "def.h" 
#include "option.h" 
#include "2440addr.h" 
#include "2440lib.h" 
#include "2440slib.h"  
#include "Am29f800.h" 
 
//Revision History 
// 2001.8.25:purnnamu:If the data is downloaded by ICE, the writing isn't done correct. 
  
int AM29F800_ProgFlash(U32 realAddr,U16 data); 
void AM29F800_EraseSector(int targetAddr); 
int AM29F800_CheckId(void); 
int BlankCheck(int targetAddr,int targetSize); 
int _WAIT(void); 
 
static void InputTargetAddr(void); 
 
// Because KS32C41000_A1 is connected to AM29LV800_A0, 
// the addr parameter has to be a WORD address, so called in AMD specification. 
 
#define _WR(addr,data)	*((U16 *)(addr<<1))=(U16)data 
#define _RD(addr)	( *((U16 *)(addr<<1)) ) 
#define _RESET()	_WR(0x0,0xf0f0) 
#define BADDR2WADDR(addr)   (addr>>1) 
extern U32 downloadAddress; 
extern U32 downloadProgramSize; 
static U32 srcAddress; 
static U32 srcOffset; 
static U32 targetAddress; 
static U32 targetSize; 
 
 
void ProgramAM29F800(void) 
{ 
    int i; 
 
    Uart_Printf("[Check AM29LVxxx]\n"); 
     
    switch(AM29F800_CheckId())  //04.01.12 junon 
    { 
	case 1 : 
	    Uart_Printf("This device is AM29LV200B!\n");	 
	    break; 
	case 2 : 
	    Uart_Printf("This device is AM29LV400B!\n");	 
	    break; 
	case 3 : 
	    Uart_Printf("This device is AM29LV800B!\n");	 
	    break; 
	case 4 : 
	    Uart_Printf("This device is AM29LV160BT!\n");	 
	    break; 
    	default: 
	    Uart_Printf("ID Check Error!!!\n"); 
	    return; 
    } 
     
    Uart_Printf("\nErase the sector:0x%x.\n",targetAddress); 
     
     
    for (i=0;i<0x4;i++) 
    { 
    AM29F800_EraseSector(0x10000*i+0x0000); 
    } 
     
     
    Uart_Printf("erase over!!!\n"); 
     
    for (i=0;i<0x4;i++) 
    { 
	    if(!BlankCheck(0x10000*i+0x0000,0x10000)) 
	    { 
		Uart_Printf("Blank %x Check Error!!!\n",i); 
		return; 
	    } 
    } 
 
    Uart_Printf("\nStart of the data writing.\n"); 
 
    //for(i=0x0;i