按照您给的链接看了，第一个帮助比较大
片外Flash为k9f1208，8位io的,64M;
RE WE ALE CLE 分别接到CPU的OE WE P0.11(GPIO) P0.12（GPIO）上;
CE通过CPLD接过来，CPLD的另一端也接的是CPU的NCS0;
/**********************************************************/
总线的配置
;/* Define the Bus Speed */
BCFG0 EQU 0xFFE00000 ;// Control Word of BANK0 / CS0
BCFG1 EQU 0xFFE00004 ;// Control Word of BANK1 / CS1
BCFG2 EQU 0xFFE00008 ;// Control Word of BANK2 / CS2
BCFG3 EQU 0xFFE0000C ;// Control Word of BANK3 / CS3
BCFG_08DEF EQU 0x00000400 ;// 8Bit Bus
BCFG_16DEF EQU 0x10000400 ;// 16Bit Bus
BCFG_32DEF EQU 0x20000400 ;// 32Bit Bus
;// | IDCY | WST1 | WST2
;// | Idle width | Read width | Write width
;// | 0x00 ~ 0x0f| 0x00 ~ 0x1f| 0x00~0x1f
BCFG_FLASH EQU (BCFG_08DEF | (0x1f<<00) | (0x1f<<05) | (0x0f<<11)) ;// For 90ns Flash
BCFG_PSRAM EQU (BCFG_16DEF | (0x0f<<00) | (0x0f<<05) | (0x0f<<11)) ;// For 70ns PSRAM
BCFG_CS2 EQU (BCFG_16DEF | (0x0f<<00) | (0x1f<<05) | (0x1f<<11)) ;// Blank
BCFG_CS3 EQU (BCFG_16DEF | (0x01<<00) | (0x03<<05) | (0x03<<11)) ;// For Peripheral Equipment
这里的RBLE为1；
ncs0接的是最慢的总线，为0x1f;
/**********************************************************/
PINSEL2的设置没有改过；用的是lpc2100模板
;初始化外部总线控制器，根据目标板决定配置
LDR R0, =PINSEL2
IF :DEF: EN_CRP
LDR R1, =0x0f814910
ELSE
LDR R1, =0x0f814914
ENDIF
STR R1, [R0]
LDR R0, =BCFG0
LDR R1, =BCFG_FLASH
STR R1, [R0]
LDR R0, =BCFG1
LDR R1, =BCFG_PSRAM
STR R1, [R0]
LDR R0, =BCFG2
LDR R1, =BCFG_CS2
STR R1, [R0]
LDR R0, =BCFG3
LDR R1, =BCFG_CS3
STR R1, [R0]
BL InitStack ;初始化堆栈 Initialize the stack
BL TargetResetInit ;目标板基本初始化 Initialize the target board
;跳转到c语言入口 Jump to the entry point of C program
B __main
/***************************************************/
源程序，只写到了读芯片id,擦出和写入
#include "config.h"
//#define LED_ADDR 0x82000000;
#define CA_LE 0x00001800
void DelayNS(uint32 dly)
{ uint32 i;
for(; dly>0; dly--)
{
for(i=0; i<5000; i++);
}
}
int main (void)
{// add user source code
volatile uint8 *data;
//unsigned short int id;
volatile unsigned int *adder1;
//unsigned int id1,id2;
data=(uint8 *)0x80000000;
adder1 =(uint32 *)0x81000000;
//adder2 =(uint32 *)0x81000008;
//PINSEL2=((PINSEL2&0xf07fffff)|(0x38<<20));
PINSEL0 = 0x00000000; // 设置管脚连接GPIO
IO0DIR = CA_LE;
IO0SET = (IO0SET|0x1000);
IO0CLR = (IO0CLR|0x0800);
//for(;;)
*data =0x90;
IO0SET = (IO0SET|0x0800);
IO0CLR = (IO0CLR|0x1000);
for(;;)
*data = 0x0;
IO0CLR = (IO0CLR|0x1800);
//for(;;)
*adder1 = *data<<8;
*adder1 |= *data;
for(;;);
// _ *adder2 = *data;
/*****************************************************************************************************************/
int i;
unsigned int block = 0x02;
unsigned int blockpage = (block<<5);
volatile uint8 *data;
data=(uint8 *)0x80000000;
PINSEL0 = 0x00000000; // 设置管脚连接GPIO
IO0DIR = CA_LE;
IO0SET = (IO0SET|0x1000);
IO0CLR = (IO0CLR|0x0800);
//for(;;)
*data = 0x60; //设置擦写模式
IO0SET = (IO0SET|0x0800);
IO0CLR = (IO0CLR|0x1000);
*data = (blockpage&0xff); // A9_A16,(Page Address) , 是基于块擦
*data = ((blockpage>>8)&0xff); // A17_A24,(Page Address)
*data = ((blockpage>>16)&0xff); // A25, (Page Address)
IO0SET = (IO0SET|0x1000);
IO0CLR = (IO0CLR|0x0800);
*data = 0xd0;
for(i=0;i<10;i++);
/*****************************************************************************************************************/
int i;
unsigned int block =0x00;
unsigned int page =0x00;
unsigned char a[528];
unsigned int blockpage = (block<<5)+page;
volatile uint16 *data;
data=(uint16 *)0x80000000;
PINSEL0 = 0x00000000; // 设置管脚连接GPIO
IO0DIR = CA_LE;
for(i=0;i<528;i++)
a=0x55;
IO0SET = (IO0SET|0x1000);
IO0CLR = (IO0CLR|0x0800);
*data = 0x0; // 从A区开始写
*data = 0x80; // 写第一条命令
IO0SET = (IO0SET|0x0800);
IO0CLR = (IO0CLR|0x1000);
*data = 0; // A0_A7 位(Column Address)
*data = blockpage&0xff; // A9_A16,(Page Address)
*data = (blockpage>>8)&0xff; // A17_A24,(Page Address)
*data = (blockpage>>16)&0xff;// A25 (Page Address)
for(i=0;i<528;i++)
{
*data = a;
}
IO0SET = (IO0SET|0x1000);
IO0CLR = (IO0CLR|0x0800);
*data = 0x10; // 结束写命令
}
这个程序我是分为三部分（读id,擦出，写入）调试的，所以看上去有些重复定义；
还有我想向zlgARM请教，我向0X0000处擦出或写入，会不会影响芯片的ID，他不是就在0X0000处吗
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