C语言为ARM的IAR，使用NXP LPC2478和Microchip NAND Flash SST39VF3201C

问题描述

我很抱歉我的问题，但我需要帮助在LPC2478和NAND Flash SST39VF3201C上配置EMC，我可以将数据写入闪存。



NAND闪存连接到LPC2478引脚，表底：

LPC2478引脚 - 到 - NAND闪存SST39VF3201C

P4.0 [A0] - 到 - A0

...................

P4.20 [A20] - 至 - A20



P4.21 [A21] - 至 - NC

P4.24 [OE] - 至 - OE

P4.25 [WE] - 至 - 我们

P4.30 [CSO] - 到 - CE



P3.0 [DO] - 到 - DQ0

...................

P3.0 [D15] - 至 - DQ15





所以，我有代码，我在IAR for ARM（C语言）中写道：

 PINSEL4& = ~0xF0000000; 
 PINSEL4 | = 0x50000000; 
 PINSEL5& = 0x000C00C0; 
 PINSEL5 | = 0x05015515; 
 PINSEL6 = 0x55555555; 
 PINSEL8 = 0x55555555; 
 PINSEL9 = 0x50555555; 
 
 PCONP | = 0x00000800; 
 
 EMCCONTROL = 0x00000001; 
 EMCSTATICEXTENDEDWAIT = 0x00; 
 
 EMCSTATICWAITWEN0 = 0x00; 
 EMCSTATICWAITOEN0 = 0x01; 
 EMCSTATICWAITRD0 = 0x01; 
 EMCSTATICWAITPG0 = 0x1F; 
 EMCSTATICWAITWR0 = 0x1F; 
 EMCSTATICWAITTURN0 = 0x0F; 
 EMCSTATICCNFG0 = 0x00000081; 
 

我配置了LPC2478，但我不确定我是否写得正确。

我编写代码后将数据保存在内存中：

 iD = *（（unsigned int *）0x80000000）; 
 *（（unsigned int *）0x80000000）= 0x09; 
 iD = *（（unsigned int *）0x80000000）; 

但是当我在内存中保存数据并阅读本文时内存数据所有时间显示我 4294967295 类型为整数



我很抱歉我的英语。



我非常需要帮助。

解决方案

I am sorry for my question but i need help with configure EMC on LPC2478 and NAND Flash SST39VF3201C that-be i can write data to flash memory.

NAND flash memory connected to LPC2478 pins, the table bottom:
LPC2478 Pins - to - NAND Flash SST39VF3201C
P4.0[A0] - to - A0
...................
P4.20[A20] - to - A20

P4.21[A21] - to - NC
P4.24[OE] - to - OE
P4.25[WE] - to - WE
P4.30[CSO] - to - CE

P3.0[DO] - to - DQ0
...................
P3.0[D15] - to - DQ15


So, i have code wich i wrote in IAR for ARM (language C):

PINSEL4 &= ~0xF0000000;
PINSEL4 |= 0x50000000;
PINSEL5 &= 0x000C00C0;
PINSEL5 |= 0x05015515;
PINSEL6 = 0x55555555;
PINSEL8 = 0x55555555;
PINSEL9 = 0x50555555;

PCONP |= 0x00000800;

EMCCONTROL = 0x00000001;
EMCSTATICEXTENDEDWAIT = 0x00;

EMCSTATICWAITWEN0 = 0x00;
EMCSTATICWAITOEN0 = 0x01;
EMCSTATICWAITRD0  = 0x01;
EMCSTATICWAITPG0  = 0x1F;
EMCSTATICWAITWR0  = 0x1F;
EMCSTATICWAITTURN0= 0x0F;
EMCSTATICCNFG0    = 0x00000081;

I was configure LPC2478, but i not sure that i wrote right.
After i wrote code wich save data at memory:

iD = *((unsigned int *)0x80000000);
*((unsigned int *) 0x80000000) = 0x09;
iD = *((unsigned int *)0x80000000);

But when i am save data in memory and read this memory data all time show me 4294967295 in type integer

I am sorry for my English.

I very need HELP.

解决方案

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