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elec_capture/source/nand/nand.c

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实现读取nand的id，正在编写坏块管理算法
2023-06-12 18:32:55 +08:00
#include "nand.h"
//#include "delay.h"
#include "stdlib.h"
#include "debug.h"
#define printf DBG_LOG
#define delay_ms HAL_Delay
//////////////////////////////////////////////////////////////////////////////////
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB>ѧϰʹ<CFB0>ã<EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><CEBA><EFBFBD>;
//ALIENTEK STM32H7<48><37><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//NAND<4E><44><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>@ALIENTEK
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳:www.openedv.com
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:2017/8/16
//<2F>汾<EFBFBD><E6B1BE>V1.0
//<2F><>Ȩ<EFBFBD><C8A8><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؾ<EFBFBD><D8BE><EFBFBD>
//Copyright(C) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿƼ<D3BF><C6BC><EFBFBD><EFBFBD>޹<EFBFBD>˾ 2014-2024
//All rights reserved
//////////////////////////////////////////////////////////////////////////////////
NAND_HandleTypeDef NAND_Handler; //NAND FLASH<53><48><EFBFBD><EFBFBD>
nand_attriute nand_dev; //nand<6E><64>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>ṹ<EFBFBD><E1B9B9>
//<2F><>ʼ<EFBFBD><CABC>NAND FLASH
u8 NAND_Init(void)
{
FMC_NAND_PCC_TimingTypeDef ComSpaceTiming,AttSpaceTiming;
//NAND_MPU_Config();
NAND_Handler.Instance=FMC_NAND_DEVICE;
NAND_Handler.Init.NandBank=FMC_NAND_BANK3; //NAND<4E><44><EFBFBD><EFBFBD>BANK3<4B><33>
NAND_Handler.Init.Waitfeature=FMC_NAND_PCC_WAIT_FEATURE_DISABLE; //<2F>رյȴ<D5B5><C8B4><EFBFBD><EFBFBD><EFBFBD>
NAND_Handler.Init.MemoryDataWidth=FMC_NAND_PCC_MEM_BUS_WIDTH_8; //8λ<38><CEBB><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD>
NAND_Handler.Init.EccComputation=FMC_NAND_ECC_DISABLE; //<2F><>ֹECC
NAND_Handler.Init.ECCPageSize=FMC_NAND_ECC_PAGE_SIZE_512BYTE; //ECCҳ<43><D2B3>СΪ512<31>ֽ<EFBFBD>
NAND_Handler.Init.TCLRSetupTime=9; //<2F><><EFBFBD><EFBFBD>TCLR(tCLR=CLE<4C><45>RE<52><45><EFBFBD><EFBFBD>ʱ)=(TCLR+TSET+2)*THCLK,THCLK=1/200M=5ns
NAND_Handler.Init.TARSetupTime=9; //<2F><><EFBFBD><EFBFBD>TAR(tAR=ALE<4C><45>RE<52><45><EFBFBD><EFBFBD>ʱ)=(TAR+TSET+1)*THCLK,THCLK=1/200M=5n<35><6E>
ComSpaceTiming.SetupTime=10; //<2F><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
ComSpaceTiming.WaitSetupTime=10; //<2F>ȴ<EFBFBD>ʱ<EFBFBD><CAB1>
ComSpaceTiming.HoldSetupTime=10; //<2F><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
ComSpaceTiming.HiZSetupTime=10; //<2F><><EFBFBD><EFBFBD>̬ʱ<CCAC><CAB1>
AttSpaceTiming.SetupTime=10; //<2F><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
AttSpaceTiming.WaitSetupTime=10; //<2F>ȴ<EFBFBD>ʱ<EFBFBD><CAB1>
AttSpaceTiming.HoldSetupTime=10; //<2F><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
AttSpaceTiming.HiZSetupTime=10; //<2F><><EFBFBD><EFBFBD>̬ʱ<CCAC><CAB1>
HAL_NAND_Init(&NAND_Handler,&ComSpaceTiming,&AttSpaceTiming);
NAND_Reset(); //<2F><>λNAND
delay_ms(100);
nand_dev.id=NAND_ReadID(); //<2F><>ȡID
printf("NAND ID:%#x\r\n",nand_dev.id);
NAND_ModeSet(4); //<2F><><EFBFBD><EFBFBD>ΪMODE4,<2C><><EFBFBD><EFBFBD>ģʽ
if(nand_dev.id==MT29F16G08ABABA) //NANDΪMT29F16G08ABABA
{
nand_dev.page_totalsize=4320;
nand_dev.page_mainsize=4096;
nand_dev.page_sparesize=224;
nand_dev.block_pagenum=128;
nand_dev.plane_blocknum=2048;
nand_dev.block_totalnum=4096;
}
else if(nand_dev.id==MT29F4G08ABADA)//NANDΪMT29F4G08ABADA
{
nand_dev.page_totalsize=2112;
nand_dev.page_mainsize=2048;
nand_dev.page_sparesize=64;
nand_dev.block_pagenum=64;
nand_dev.plane_blocknum=2048;
nand_dev.block_totalnum=4096;
}else return 1; //<2F><><EFBFBD>󣬷<EFBFBD><F3A3ACB7><EFBFBD>
return 0;
}
//NAND FALSH<53>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>ʱ<EFBFBD><CAB1>ʹ<EFBFBD><CAB9>
//<2F>˺<EFBFBD><CBBA><EFBFBD><EFBFBD>ᱻHAL_NAND_Init()<29><><EFBFBD><EFBFBD>
void HAL_NAND_MspInit11(NAND_HandleTypeDef *hnand)
{
GPIO_InitTypeDef GPIO_Initure;
__HAL_RCC_FMC_CLK_ENABLE(); //ʹ<><CAB9>FMCʱ<43><CAB1>
__HAL_RCC_GPIOD_CLK_ENABLE(); //ʹ<><CAB9>GPIODʱ<44><CAB1>
__HAL_RCC_GPIOE_CLK_ENABLE(); //ʹ<><CAB9>GPIOEʱ<45><CAB1>
__HAL_RCC_GPIOC_CLK_ENABLE(); //ʹ<><CAB9>GPIOGʱ<47><CAB1>
//<2F><>ʼ<EFBFBD><CABC>PD6 R/B<><42><EFBFBD><EFBFBD>
GPIO_Initure.Pin = GPIO_PIN_6;
GPIO_Initure.Mode = GPIO_MODE_AF_PP;
GPIO_Initure.Pull = GPIO_PULLUP;
GPIO_Initure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_Initure.Alternate = GPIO_AF12_FMC;
HAL_GPIO_Init(GPIOD,&GPIO_Initure);
//<2F><>ʼ<EFBFBD><CABC>PC8 NCE3<45><33><EFBFBD><EFBFBD>
GPIO_Initure.Pin=GPIO_PIN_8;
GPIO_Initure.Mode=GPIO_MODE_AF_PP; //<2F><><EFBFBD><EFBFBD>
GPIO_Initure.Pull=GPIO_NOPULL; //<2F><><EFBFBD><EFBFBD>
GPIO_Initure.Speed=GPIO_SPEED_FREQ_VERY_HIGH; //<2F><><EFBFBD><EFBFBD>
GPIO_Initure.Alternate=GPIO_AF9_FMC; //<2F><><EFBFBD><EFBFBD>ΪFMC
HAL_GPIO_Init(GPIOC,&GPIO_Initure);
//<2F><>ʼ<EFBFBD><CABC>PD0,1,4,5,11,12,14,15
GPIO_Initure.Pin=GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5|\
GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_14|GPIO_PIN_15;
GPIO_Initure.Pull=GPIO_NOPULL;
HAL_GPIO_Init(GPIOD,&GPIO_Initure);
//<2F><>ʼ<EFBFBD><CABC>PE7,8,9,10
GPIO_Initure.Pin=GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10;
HAL_GPIO_Init(GPIOE,&GPIO_Initure);
}
//<2F><><EFBFBD><EFBFBD>MPU<50><55>region
void NAND_MPU_Config(void)
{
MPU_Region_InitTypeDef MPU_Initure;
HAL_MPU_Disable(); //<2F><><EFBFBD><EFBFBD>MPU֮ǰ<D6AE>ȹر<C8B9>MPU,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ժ<EFBFBD><D4BA><EFBFBD>ʹ<EFBFBD><CAB9>MPU
//<2F><><EFBFBD><EFBFBD>RAMΪregion1<6E><31><EFBFBD><EFBFBD>СΪ256MB<4D><42><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɶ<EFBFBD>д
MPU_Initure.Enable=MPU_REGION_ENABLE; //ʹ<><CAB9>region
MPU_Initure.Number=NAND_REGION_NUMBER; //<2F><><EFBFBD><EFBFBD>region<6F><6E>NANDʹ<44>õ<EFBFBD>region4
MPU_Initure.BaseAddress=NAND_ADDRESS_START; //region<6F><6E><EFBFBD><EFBFBD>ַ
MPU_Initure.Size=NAND_REGION_SIZE; //region<6F><6E>С
MPU_Initure.SubRegionDisable=0X00;
MPU_Initure.TypeExtField=MPU_TEX_LEVEL0;
MPU_Initure.AccessPermission=MPU_REGION_FULL_ACCESS; //<2F><>region<6F>ɶ<EFBFBD>д
MPU_Initure.DisableExec=MPU_INSTRUCTION_ACCESS_DISABLE ; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ָ<EFBFBD><D6B8>
MPU_Initure.IsShareable=MPU_ACCESS_NOT_SHAREABLE;
MPU_Initure.IsCacheable=MPU_ACCESS_NOT_CACHEABLE;
MPU_Initure.IsBufferable=MPU_ACCESS_NOT_BUFFERABLE;
HAL_MPU_ConfigRegion(&MPU_Initure);
HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT); //<2F><><EFBFBD><EFBFBD>MPU
}
//<2F><>ȡNAND FLASH<53><48>ID
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>;
// <20><><EFBFBD><EFBFBD>,ʧ<><CAA7>
u8 NAND_ModeSet(u8 mode)
{
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_FEATURE;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=0X01; //<2F><>ַΪ0X01,<2C><><EFBFBD><EFBFBD>mode
NAND_Delay(NAND_TADL_DELAY); //<2F>ȴ<EFBFBD>tADL
*(vu8*)NAND_ADDRESS=mode; //P1<50><31><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>mode
*(vu8*)NAND_ADDRESS=0;
*(vu8*)NAND_ADDRESS=0;
*(vu8*)NAND_ADDRESS=0;
if(NAND_WaitForReady()==NSTA_READY)return 0;//<2F>ɹ<EFBFBD>
else return 1; //ʧ<><CAA7>
}
//<2F><>ȡNAND FLASH<53><48>ID
//<2F><>ͬ<EFBFBD><CDAC>NAND<4E><44><EFBFBD>в<EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD>ʹ<EFBFBD>õ<EFBFBD>NAND FALSH<53><48><EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><D6B2><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD>
//<2F><><EFBFBD><EFBFBD>ֵ:NAND FLASH<53><48>IDֵ
u32 NAND_ReadID(void)
{
u8 deviceid[5];
u32 id;
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_READID; //<2F><><EFBFBD>Ͷ<EFBFBD>ȡID<49><44><EFBFBD><EFBFBD>
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=0X00;
//NOPָ<50><D6B8>E<EFBFBD><45><EFBFBD><EFBFBD>CPU<50><55>ת<EFBFBD><D7AA>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>60ns, tWHR
NAND_Delay(NAND_TWHR_DELAY);
//IDһ<44><D2BB><EFBFBD><EFBFBD>5<EFBFBD><35><EFBFBD>ֽ<EFBFBD>
deviceid[0]=*(vu8*)NAND_ADDRESS;
deviceid[1]=*(vu8*)NAND_ADDRESS;
deviceid[2]=*(vu8*)NAND_ADDRESS;
deviceid[3]=*(vu8*)NAND_ADDRESS;
deviceid[4]=*(vu8*)NAND_ADDRESS;
//þ<><C3BE><EFBFBD><EFBFBD>NAND FLASH<53><48>IDһ<44><D2BB>5<EFBFBD><35><EFBFBD>ֽڣ<D6BD><DAA3><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>˷<EFBFBD><CBB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻȡ4<C8A1><34><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>32λ<32><CEBB>IDֵ
//<2F><><EFBFBD><EFBFBD>NAND FLASH<53><48><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֲᣬֻҪ<D6BB><D2AA>þ<EFBFBD><C3BE><EFBFBD><EFBFBD>NAND FLASH<53><48><EFBFBD><EFBFBD>ôһ<C3B4><D2BB><EFBFBD>ֽ<EFBFBD>ID<49>ĵ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ֽڶ<D6BD><DAB6><EFBFBD>0X2C
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǾͿ<C7BE><CDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0X2C<32><43>ֻȡ<D6BB><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽڵ<D6BD>IDֵ<44><D6B5>
id=((u32)deviceid[1])<<24|((u32)deviceid[2])<<16|((u32)deviceid[3])<<8|deviceid[4];
if(NAND_WaitForReady()==NSTA_READY)return id;//<2F>ɹ<EFBFBD>
else return 0xFFFFFFFF;
//return id;
}
//<2F><>NAND״̬
//<2F><><EFBFBD><EFBFBD>ֵ:NAND״ֵ̬
//bit0:0,<2C>ɹ<EFBFBD>;1,<2C><><EFBFBD><EFBFBD>(<28><><EFBFBD><EFBFBD>/<2F><><EFBFBD><EFBFBD>/READ)
//bit6:0,Busy;1,Ready
u8 NAND_ReadStatus(void)
{
vu8 data=0;
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_READSTA;//<2F><><EFBFBD>Ͷ<EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD>
NAND_Delay(NAND_TWHR_DELAY); //<2F>ȴ<EFBFBD>tWHR,<2C>ٶ<EFBFBD>ȡ״̬<D7B4>Ĵ<EFBFBD><C4B4><EFBFBD>
data=*(vu8*)NAND_ADDRESS; //<2F><>ȡ״ֵ̬
return data;
}
//<2F>ȴ<EFBFBD>NAND׼<44><D7BC><EFBFBD><EFBFBD>
//<2F><><EFBFBD><EFBFBD>ֵ:NSTA_TIMEOUT <20>ȴ<EFBFBD><C8B4><EFBFBD>ʱ<EFBFBD><CAB1>
// NSTA_READY <20>Ѿ<EFBFBD>׼<EFBFBD><D7BC><EFBFBD><EFBFBD>
u8 NAND_WaitForReady(void)
{
u8 status=0;
vu32 time=0;
while(1) //<2F>ȴ<EFBFBD>ready
{
status=NAND_ReadStatus(); //<2F><>ȡ״ֵ̬
if(status&NSTA_READY)break;
time++;
if(time>=0X1FFFF)return NSTA_TIMEOUT;//<2F><>ʱ
}
return NSTA_READY;//׼<><D7BC><EFBFBD><EFBFBD>
}
//<2F><>λNAND
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>;
// <20><><EFBFBD><EFBFBD>,ʧ<><CAA7>
u8 NAND_Reset(void)
{
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_RESET; //<2F><>λNAND
/* þ<><C3BE><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>100ns<6E><73>tWB+100us<75><73>tRST */
delay_ms(NAND_TRST_FIRST_DELAY);
if(NAND_WaitForReady()==NSTA_READY)return 0;//<2F><>λ<EFBFBD>ɹ<EFBFBD>
else return 1; //<2F><>λʧ<CEBB><CAA7>
}
//<2F>ȴ<EFBFBD>RB<52>ź<EFBFBD>Ϊij<CEAA><C4B3><EFBFBD><EFBFBD>ƽ
//rb:0,<2C>ȴ<EFBFBD>RB==0
// 1,<2C>ȴ<EFBFBD>RB==1
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>
// 1,<2C><>ʱ
u8 NAND_WaitRB(vu8 rb)
{
vu32 time=0;
vu8 cnt=0;
while(time<0X1FFFFFF)
{
time++;
if(NAND_RB==rb)
{
cnt++;
}else cnt=0;
if(cnt>2)return 0;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ζ<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>ƽ,<2C><><EFBFBD><EFBFBD>Ϊ<EFBFBD>˴<EFBFBD><CBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч!(<28><><EFBFBD><EFBFBD>-O2<4F>Ż<EFBFBD><C5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>!)
}
return 1;
}
//NAND<4E><44>ʱ
void NAND_Delay(vu32 i)
{
while(i>0)i--;
}
//<2F><>ȡNAND Flash<73><68>ָ<EFBFBD><D6B8>ҳָ<D2B3><D6B8><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>(main<69><6E><EFBFBD><EFBFBD>spare<72><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ô˺<C3B4><CBBA><EFBFBD>)
//PageNum:Ҫ<><D2AA>ȡ<EFBFBD><C8A1>ҳ<EFBFBD><D2B3>ַ,<2C><>Χ:0~(block_pagenum*block_totalnum-1)
//ColNum:Ҫ<><D2AA>ȡ<EFBFBD><C8A1><EFBFBD>п<EFBFBD>ʼ<EFBFBD><CABC>ַ(Ҳ<><D2B2><EFBFBD><EFBFBD>ҳ<EFBFBD>ڵ<EFBFBD>ַ),<2C><>Χ:0~(page_totalsize-1)
//*pBuffer:ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD>ݴ洢<DDB4><E6B4A2>
//NumByteToRead:<3A><>ȡ<EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>(<28><><EFBFBD>ܿ<EFBFBD>ҳ<EFBFBD><D2B3>)
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>
// <20><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
u8 NAND_ReadPage(u32 PageNum,u16 ColNum,u8 *pBuffer,u16 NumByteToRead)
{
vu16 i=0;
u8 res=0;
u8 eccnum=0; //<2F><>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECC<43><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿNAND_ECC_SECTOR_SIZE<5A>ֽڼ<D6BD><DABC><EFBFBD>һ<EFBFBD><D2BB>ecc
u8 eccstart=0; //<2F><>һ<EFBFBD><D2BB>ECCֵ<43><D6B5><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><D6B7>Χ
u8 errsta=0;
u8 *p;
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_AREA_A;
//<2F><><EFBFBD>͵<EFBFBD>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)ColNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(ColNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)PageNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(PageNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(PageNum>>16);
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_AREA_TRUE1;
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD>ǵȴ<C7B5>R/B<><42><EFBFBD>ű<EFBFBD>Ϊ<EFBFBD>͵<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>õģ<C3B5><C4A3>ȴ<EFBFBD>NAND<4E><44><EFBFBD><EFBFBD>R/B<><42><EFBFBD>š<EFBFBD><C5A1><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
//<2F><>STM32<33><32>NWAIT<49><54><EFBFBD><EFBFBD>(NAND<4E><44>R/B<><42><EFBFBD><EFBFBD>)<29><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ͨIO<49><4F><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>ȡNWAIT<49><54><EFBFBD>ŵĵ<C5B5>ƽ<EFBFBD><C6BD><EFBFBD>ж<EFBFBD>NAND<4E>Ƿ<EFBFBD>׼<EFBFBD><D7BC>
//<2F><><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD><C4A1><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȺܿ<C8BA><DCBF><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>п<EFBFBD><D0BF><EFBFBD>NAND<4E><44>û<EFBFBD><C3BB><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>R/B<><42><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾNAND<4E><44>æ
//<2F><>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǾͶ<C7BE>ȡ<EFBFBD><C8A1>R/B<><42><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>϶<EFBFBD><CFB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD>ʵ<EFBFBD><CAB5>ȷʵ<C8B7>ǻ<EFBFBD><C7BB><EFBFBD><EFBFBD><EFBFBD>!<21><><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD>뻻<EFBFBD><EBBBBB><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>,ֻ<><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
res=NAND_WaitRB(0); //<2F>ȴ<EFBFBD>RB=0
if(res)return NSTA_TIMEOUT; //<2F><>ʱ<EFBFBD>˳<EFBFBD>
//<2F><><EFBFBD><EFBFBD>2<EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>NAND<4E>Ƿ<EFBFBD>׼<EFBFBD><D7BC><EFBFBD>õ<EFBFBD>
res=NAND_WaitRB(1); //<2F>ȴ<EFBFBD>RB=1
if(res)return NSTA_TIMEOUT; //<2F><>ʱ<EFBFBD>˳<EFBFBD>
if(NumByteToRead%NAND_ECC_SECTOR_SIZE)//<2F><><EFBFBD><EFBFBD>NAND_ECC_SECTOR_SIZE<5A><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECCУ<43><D0A3>
{
//<2F><>ȡNAND FLASH<53>е<EFBFBD>ֵ
for(i=0;i<NumByteToRead;i++)
{
*(vu8*)pBuffer++ = *(vu8*)NAND_ADDRESS;
}
}else
{
eccnum=NumByteToRead/NAND_ECC_SECTOR_SIZE; //<2F>õ<EFBFBD>ecc<63><63><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
eccstart=ColNum/NAND_ECC_SECTOR_SIZE;
p=pBuffer;
for(res=0;res<eccnum;res++)
{
SCB_CleanInvalidateDCache(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>D-Cache
FMC_NAND_DEVICE->PCR|=1<<6; //ʹ<><CAB9>ECCУ<43><D0A3>
for(i=0;i<NAND_ECC_SECTOR_SIZE;i++) //<2F><>ȡNAND_ECC_SECTOR_SIZE<5A><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
*(vu8*)pBuffer++ = *(vu8*)NAND_ADDRESS;
}
while(!(FMC_NAND_DEVICE->SR&(1<<6))); //<2F>ȴ<EFBFBD>FIFO<46><4F>
SCB_CleanInvalidateDCache(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>D-Cache
nand_dev.ecc_hdbuf[res+eccstart]=FMC_NAND_DEVICE->ECCR;//<2F><>ȡӲ<C8A1><D3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECCֵ
FMC_NAND_DEVICE->PCR&=~(1<<6); //<2F><>ֹECCУ<43><D0A3>
}
i=nand_dev.page_mainsize+0X10+eccstart*4; //<2F><>spare<72><65><EFBFBD><EFBFBD>0X10λ<30>ÿ<EFBFBD>ʼ<EFBFBD><CABC>ȡ֮ǰ<D6AE>洢<EFBFBD><E6B4A2>eccֵ
NAND_Delay(NAND_TRHW_DELAY);//<2F>ȴ<EFBFBD>tRHW
*(vu8*)(NAND_ADDRESS|NAND_CMD)=0X05; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
//<2F><><EFBFBD>͵<EFBFBD>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)i;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(i>>8);
*(vu8*)(NAND_ADDRESS|NAND_CMD)=0XE0; //<2F><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
NAND_Delay(NAND_TWHR_DELAY);//<2F>ȴ<EFBFBD>tWHR
pBuffer=(u8*)&nand_dev.ecc_rdbuf[eccstart];
SCB_CleanInvalidateDCache(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>D-Cache
for(i=0;i<4*eccnum;i++) //<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECCֵ
{
*(vu8*)pBuffer++= *(vu8*)NAND_ADDRESS;
}
for(i=0;i<eccnum;i++) //<2F><><EFBFBD><EFBFBD>ECC
{
if(nand_dev.ecc_rdbuf[i+eccstart]!=nand_dev.ecc_hdbuf[i+eccstart])//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><>ҪУ<D2AA><D0A3>
{
printf("err hd,rd:0x%x,0x%x\r\n",nand_dev.ecc_hdbuf[i+eccstart],nand_dev.ecc_rdbuf[i+eccstart]);
printf("eccnum,eccstart:%d,%d\r\n",eccnum,eccstart);
printf("PageNum,ColNum:%d,%d\r\n",PageNum,ColNum);
res=NAND_ECC_Correction(p+NAND_ECC_SECTOR_SIZE*i,nand_dev.ecc_rdbuf[i+eccstart],nand_dev.ecc_hdbuf[i+eccstart]);//ECCУ<43><D0A3>
if(res)errsta=NSTA_ECC2BITERR; //<2F><><EFBFBD><EFBFBD>2BIT<49><54><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECC<43><43><EFBFBD><EFBFBD>
else errsta=NSTA_ECC1BITERR; //<2F><><EFBFBD><EFBFBD>1BIT ECC<43><43><EFBFBD><EFBFBD>
}
}
}
if(NAND_WaitForReady()!=NSTA_READY)errsta=NSTA_ERROR; //ʧ<><CAA7>
return errsta; //<2F>ɹ<EFBFBD>
}
//<2F><>ȡNAND Flash<73><68>ָ<EFBFBD><D6B8>ҳָ<D2B3><D6B8><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>(main<69><6E><EFBFBD><EFBFBD>spare<72><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ô˺<C3B4><CBBA><EFBFBD>),<2C><><EFBFBD>Ա<EFBFBD>(FTL<54><4C><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>Ҫ)
//PageNum:Ҫ<><D2AA>ȡ<EFBFBD><C8A1>ҳ<EFBFBD><D2B3>ַ,<2C><>Χ:0~(block_pagenum*block_totalnum-1)
//ColNum:Ҫ<><D2AA>ȡ<EFBFBD><C8A1><EFBFBD>п<EFBFBD>ʼ<EFBFBD><CABC>ַ(Ҳ<><D2B2><EFBFBD><EFBFBD>ҳ<EFBFBD>ڵ<EFBFBD>ַ),<2C><>Χ:0~(page_totalsize-1)
//CmpVal:Ҫ<>Աȵ<D4B1>ֵ,<2C><>u32Ϊ<32><CEAA>λ
//NumByteToRead:<3A><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>(<28><>4<EFBFBD>ֽ<EFBFBD>Ϊ<EFBFBD><CEAA>λ,<2C><><EFBFBD>ܿ<EFBFBD>ҳ<EFBFBD><D2B3>)
//NumByteEqual:<3A>ӳ<EFBFBD>ʼλ<CABC>ó<EFBFBD><C3B3><EFBFBD><EFBFBD><EFBFBD>CmpValֵ<6C><D6B5>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD><DDB8><EFBFBD>
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>
// <20><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
u8 NAND_ReadPageComp(u32 PageNum,u16 ColNum,u32 CmpVal,u16 NumByteToRead,u16 *NumByteEqual)
{
u16 i=0;
u8 res=0;
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_AREA_A;
//<2F><><EFBFBD>͵<EFBFBD>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)ColNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(ColNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)PageNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(PageNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(PageNum>>16);
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_AREA_TRUE1;
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD>ǵȴ<C7B5>R/B<><42><EFBFBD>ű<EFBFBD>Ϊ<EFBFBD>͵<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>õģ<C3B5><C4A3>ȴ<EFBFBD>NAND<4E><44><EFBFBD><EFBFBD>R/B<><42><EFBFBD>š<EFBFBD><C5A1><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
//<2F><>STM32<33><32>NWAIT<49><54><EFBFBD><EFBFBD>(NAND<4E><44>R/B<><42><EFBFBD><EFBFBD>)<29><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ͨIO<49><4F><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>ȡNWAIT<49><54><EFBFBD>ŵĵ<C5B5>ƽ<EFBFBD><C6BD><EFBFBD>ж<EFBFBD>NAND<4E>Ƿ<EFBFBD>׼<EFBFBD><D7BC>
//<2F><><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD><C4A1><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȺܿ<C8BA><DCBF><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>п<EFBFBD><D0BF><EFBFBD>NAND<4E><44>û<EFBFBD><C3BB><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>R/B<><42><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾNAND<4E><44>æ
//<2F><>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǾͶ<C7BE>ȡ<EFBFBD><C8A1>R/B<><42><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>϶<EFBFBD><CFB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD>ʵ<EFBFBD><CAB5>ȷʵ<C8B7>ǻ<EFBFBD><C7BB><EFBFBD><EFBFBD><EFBFBD>!<21><><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD>뻻<EFBFBD><EBBBBB><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>,ֻ<><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
res=NAND_WaitRB(0); //<2F>ȴ<EFBFBD>RB=0
if(res)return NSTA_TIMEOUT; //<2F><>ʱ<EFBFBD>˳<EFBFBD>
//<2F><><EFBFBD><EFBFBD>2<EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>NAND<4E>Ƿ<EFBFBD>׼<EFBFBD><D7BC><EFBFBD>õ<EFBFBD>
res=NAND_WaitRB(1); //<2F>ȴ<EFBFBD>RB=1
if(res)return NSTA_TIMEOUT; //<2F><>ʱ<EFBFBD>˳<EFBFBD>
SCB_CleanInvalidateDCache();//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>D-Cache
for(i=0;i<NumByteToRead;i++)//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>,ÿ<>ζ<EFBFBD>4<EFBFBD>ֽ<EFBFBD>
{
if(*(vu32*)NAND_ADDRESS!=CmpVal)break; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD>һ<EFBFBD><D2BB>ֵ,<2C><>CmpVal<61><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD>˳<EFBFBD>.
}
*NumByteEqual=i; //<2F><>CmpValֵ<6C><D6B5>ͬ<EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD>
if(NAND_WaitForReady()!=NSTA_READY)return NSTA_ERROR;//ʧ<><CAA7>
return 0; //<2F>ɹ<EFBFBD>
}
//<2F><>NANDһҳ<D2BB><D2B3>д<EFBFBD><D0B4>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ֽڵ<D6BD><DAB5><EFBFBD><EFBFBD><EFBFBD>(main<69><6E><EFBFBD><EFBFBD>spare<72><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ô˺<C3B4><CBBA><EFBFBD>)
//PageNum:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3>ַ,<2C><>Χ:0~(block_pagenum*block_totalnum-1)
//ColNum:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>ʼ<EFBFBD><CABC>ַ(Ҳ<><D2B2><EFBFBD><EFBFBD>ҳ<EFBFBD>ڵ<EFBFBD>ַ),<2C><>Χ:0~(page_totalsize-1)
//pBbuffer:ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD>ݴ洢<DDB4><E6B4A2>
//NumByteToWrite:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD>ܳ<EFBFBD><DCB3><EFBFBD><EFBFBD><EFBFBD>ҳʣ<D2B3><CAA3><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>
// <20><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
u8 NAND_WritePage(u32 PageNum,u16 ColNum,u8 *pBuffer,u16 NumByteToWrite)
{
vu16 i=0;
u8 res=0;
u8 eccnum=0; //<2F><>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECC<43><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿNAND_ECC_SECTOR_SIZE<5A>ֽڼ<D6BD><DABC><EFBFBD>һ<EFBFBD><D2BB>ecc
u8 eccstart=0; //<2F><>һ<EFBFBD><D2BB>ECCֵ<43><D6B5><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><D6B7>Χ
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_WRITE0;
//<2F><><EFBFBD>͵<EFBFBD>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)ColNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(ColNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)PageNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(PageNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(PageNum>>16);
NAND_Delay(NAND_TADL_DELAY); //<2F>ȴ<EFBFBD>tADL
if(NumByteToWrite%NAND_ECC_SECTOR_SIZE) //<2F><><EFBFBD><EFBFBD>NAND_ECC_SECTOR_SIZE<5A><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECCУ<43><D0A3>
{
for(i=0;i<NumByteToWrite;i++) //д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
*(vu8*)NAND_ADDRESS=*(vu8*)pBuffer++;
}
}else
{
eccnum=NumByteToWrite/NAND_ECC_SECTOR_SIZE; //<2F>õ<EFBFBD>ecc<63><63><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
eccstart=ColNum/NAND_ECC_SECTOR_SIZE;
for(res=0;res<eccnum;res++)
{
SCB_CleanInvalidateDCache(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>D-Cache
FMC_NAND_DEVICE->PCR|=1<<6; //ʹ<><CAB9>ECCУ<43><D0A3>
for(i=0;i<NAND_ECC_SECTOR_SIZE;i++) //д<><D0B4>NAND_ECC_SECTOR_SIZE<5A><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
*(vu8*)NAND_ADDRESS=*(vu8*)pBuffer++;
}
while(!(FMC_NAND_DEVICE->SR&(1<<6))); //<2F>ȴ<EFBFBD>FIFO<46><4F>
SCB_CleanInvalidateDCache(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>D-Cache
nand_dev.ecc_hdbuf[res+eccstart]=FMC_NAND_DEVICE->ECCR; //<2F><>ȡӲ<C8A1><D3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECCֵ
FMC_NAND_DEVICE->PCR&=~(1<<6); //<2F><>ֹECCУ<43><D0A3>
}
i=nand_dev.page_mainsize+0X10+eccstart*4; //<2F><><EFBFBD><EFBFBD>д<EFBFBD><D0B4>ECC<43><43>spare<72><65><EFBFBD><EFBFBD>ַ
NAND_Delay(NAND_TADL_DELAY);//<2F>ȴ<EFBFBD>
*(vu8*)(NAND_ADDRESS|NAND_CMD)=0X85; //<2F><><EFBFBD><EFBFBD>дָ<D0B4><D6B8>
//<2F><><EFBFBD>͵<EFBFBD>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)i;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(i>>8);
NAND_Delay(NAND_TADL_DELAY);//<2F>ȴ<EFBFBD>tADL
pBuffer=(u8*)&nand_dev.ecc_hdbuf[eccstart];
for(i=0;i<eccnum;i++) //д<><D0B4>ECC
{
for(res=0;res<4;res++)
{
*(vu8*)NAND_ADDRESS=*(vu8*)pBuffer++;
}
}
}
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_WRITE_TURE1;
//delay_us(NAND_TPROG_DELAY); //<2F>ȴ<EFBFBD>tPROG
HAL_Delay(1);
if(NAND_WaitForReady()!=NSTA_READY)return NSTA_ERROR;//ʧ<><CAA7>
return 0;//<2F>ɹ<EFBFBD>
}
//<2F><>NANDһҳ<D2BB>е<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7>ʼ,д<><D0B4>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ȵĺ㶨<C4BA><E3B6A8><EFBFBD><EFBFBD>
//PageNum:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3>ַ,<2C><>Χ:0~(block_pagenum*block_totalnum-1)
//ColNum:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>ʼ<EFBFBD><CABC>ַ(Ҳ<><D2B2><EFBFBD><EFBFBD>ҳ<EFBFBD>ڵ<EFBFBD>ַ),<2C><>Χ:0~(page_totalsize-1)
//cval:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//NumByteToWrite:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><>4<EFBFBD>ֽ<EFBFBD>Ϊ<EFBFBD><CEAA>λ)
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>
// <20><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
u8 NAND_WritePageConst(u32 PageNum,u16 ColNum,u32 cval,u16 NumByteToWrite)
{
u16 i=0;
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_WRITE0;
//<2F><><EFBFBD>͵<EFBFBD>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)ColNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(ColNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)PageNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(PageNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(PageNum>>16);
NAND_Delay(NAND_TADL_DELAY); //<2F>ȴ<EFBFBD>tADL
for(i=0;i<NumByteToWrite;i++) //д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,ÿ<><C3BF>д4<D0B4>ֽ<EFBFBD>
{
*(vu32*)NAND_ADDRESS=cval;
}
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_WRITE_TURE1;
//delay_us(NAND_TPROG_DELAY); //<2F>ȴ<EFBFBD>tPROG
HAL_Delay(1);
if(NAND_WaitForReady()!=NSTA_READY)return NSTA_ERROR;//ʧ<><CAA7>
return 0;//<2F>ɹ<EFBFBD>
}
//<2F><>һҳ<D2BB><D2B3><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һҳ,<2C><>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//ע<><D7A2>:Դҳ<D4B4><D2B3>Ŀ<EFBFBD><C4BF>ҳҪ<D2B3><D2AA>ͬһ<CDAC><D2BB>Plane<6E>ڣ<EFBFBD>
//Source_PageNo:Դҳ<D4B4><D2B3>ַ,<2C><>Χ:0~(block_pagenum*block_totalnum-1)
//Dest_PageNo:Ŀ<><C4BF>ҳ<EFBFBD><D2B3>ַ,<2C><>Χ:0~(block_pagenum*block_totalnum-1)
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>
// <20><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
u8 NAND_CopyPageWithoutWrite(u32 Source_PageNum,u32 Dest_PageNum)
{
u8 res=0;
u16 source_block=0,dest_block=0;
//<2F>ж<EFBFBD>Դҳ<D4B4><D2B3>Ŀ<EFBFBD><C4BF>ҳ<EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD>ͬһ<CDAC><D2BB>plane<6E><65>
source_block=Source_PageNum/nand_dev.block_pagenum;
dest_block=Dest_PageNum/nand_dev.block_pagenum;
if((source_block%2)!=(dest_block%2))return NSTA_ERROR; //<2F><><EFBFBD><EFBFBD>ͬһ<CDAC><D2BB>plane<6E><65>
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_MOVEDATA_CMD0; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0X00
//<2F><><EFBFBD><EFBFBD>Դҳ<D4B4><D2B3>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)0;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)0;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)Source_PageNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(Source_PageNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(Source_PageNum>>16);
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_MOVEDATA_CMD1;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0X35
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD>ǵȴ<C7B5>R/B<><42><EFBFBD>ű<EFBFBD>Ϊ<EFBFBD>͵<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>õģ<C3B5><C4A3>ȴ<EFBFBD>NAND<4E><44><EFBFBD><EFBFBD>R/B<><42><EFBFBD>š<EFBFBD><C5A1><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
//<2F><>STM32<33><32>NWAIT<49><54><EFBFBD><EFBFBD>(NAND<4E><44>R/B<><42><EFBFBD><EFBFBD>)<29><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ͨIO<49><4F><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>ȡNWAIT<49><54><EFBFBD>ŵĵ<C5B5>ƽ<EFBFBD><C6BD><EFBFBD>ж<EFBFBD>NAND<4E>Ƿ<EFBFBD>׼<EFBFBD><D7BC>
//<2F><><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD><C4A1><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȺܿ<C8BA><DCBF><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>п<EFBFBD><D0BF><EFBFBD>NAND<4E><44>û<EFBFBD><C3BB><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>R/B<><42><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾNAND<4E><44>æ
//<2F><>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǾͶ<C7BE>ȡ<EFBFBD><C8A1>R/B<><42><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>϶<EFBFBD><CFB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD>ʵ<EFBFBD><CAB5>ȷʵ<C8B7>ǻ<EFBFBD><C7BB><EFBFBD><EFBFBD><EFBFBD>!<21><><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD>뻻<EFBFBD><EBBBBB><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>,ֻ<><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
res=NAND_WaitRB(0); //<2F>ȴ<EFBFBD>RB=0
if(res)return NSTA_TIMEOUT; //<2F><>ʱ<EFBFBD>˳<EFBFBD>
//<2F><><EFBFBD><EFBFBD>2<EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>NAND<4E>Ƿ<EFBFBD>׼<EFBFBD><D7BC><EFBFBD>õ<EFBFBD>
res=NAND_WaitRB(1); //<2F>ȴ<EFBFBD>RB=1
if(res)return NSTA_TIMEOUT; //<2F><>ʱ<EFBFBD>˳<EFBFBD>
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_MOVEDATA_CMD2; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0X85
//<2F><><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>ҳ<EFBFBD><D2B3>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)0;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)0;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)Dest_PageNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(Dest_PageNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(Dest_PageNum>>16);
NAND_Delay(NAND_TWHR_DELAY);//<2F>ȴ<EFBFBD>tWHR
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_MOVEDATA_CMD3; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0X10
//delay_us(NAND_TPROG_DELAY); //<2F>ȴ<EFBFBD>tPROG
HAL_Delay(1);
if(NAND_WaitForReady()!=NSTA_READY)return NSTA_ERROR; //NANDδ׼<CEB4><D7BC><EFBFBD><EFBFBD>
return 0;//<2F>ɹ<EFBFBD>
}
//<2F><>һҳ<D2BB><D2B3><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һҳ,<2C><><EFBFBD>ҿ<EFBFBD><D2BF><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//ע<><D7A2>:Դҳ<D4B4><D2B3>Ŀ<EFBFBD><C4BF>ҳҪ<D2B3><D2AA>ͬһ<CDAC><D2BB>Plane<6E>ڣ<EFBFBD>
//Source_PageNo:Դҳ<D4B4><D2B3>ַ,<2C><>Χ:0~(block_pagenum*block_totalnum-1)
//Dest_PageNo:Ŀ<><C4BF>ҳ<EFBFBD><D2B3>ַ,<2C><>Χ:0~(block_pagenum*block_totalnum-1)
//ColNo:ҳ<><D2B3><EFBFBD>е<EFBFBD>ַ,<2C><>Χ:0~(page_totalsize-1)
//pBuffer:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//NumByteToWrite:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD><DDB8><EFBFBD>
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>
// <20><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
u8 NAND_CopyPageWithWrite(u32 Source_PageNum,u32 Dest_PageNum,u16 ColNum,u8 *pBuffer,u16 NumByteToWrite)
{
u8 res=0;
vu16 i=0;
u16 source_block=0,dest_block=0;
u8 eccnum=0; //<2F><>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECC<43><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿNAND_ECC_SECTOR_SIZE<5A>ֽڼ<D6BD><DABC><EFBFBD>һ<EFBFBD><D2BB>ecc
u8 eccstart=0; //<2F><>һ<EFBFBD><D2BB>ECCֵ<43><D6B5><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><D6B7>Χ
//<2F>ж<EFBFBD>Դҳ<D4B4><D2B3>Ŀ<EFBFBD><C4BF>ҳ<EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD>ͬһ<CDAC><D2BB>plane<6E><65>
source_block=Source_PageNum/nand_dev.block_pagenum;
dest_block=Dest_PageNum/nand_dev.block_pagenum;
if((source_block%2)!=(dest_block%2))return NSTA_ERROR;//<2F><><EFBFBD><EFBFBD>ͬһ<CDAC><D2BB>plane<6E><65>
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_MOVEDATA_CMD0; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0X00
//<2F><><EFBFBD><EFBFBD>Դҳ<D4B4><D2B3>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)0;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)0;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)Source_PageNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(Source_PageNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(Source_PageNum>>16);
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_MOVEDATA_CMD1; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0X35
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD>ǵȴ<C7B5>R/B<><42><EFBFBD>ű<EFBFBD>Ϊ<EFBFBD>͵<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>õģ<C3B5><C4A3>ȴ<EFBFBD>NAND<4E><44><EFBFBD><EFBFBD>R/B<><42><EFBFBD>š<EFBFBD><C5A1><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
//<2F><>STM32<33><32>NWAIT<49><54><EFBFBD><EFBFBD>(NAND<4E><44>R/B<><42><EFBFBD><EFBFBD>)<29><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ͨIO<49><4F><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>ȡNWAIT<49><54><EFBFBD>ŵĵ<C5B5>ƽ<EFBFBD><C6BD><EFBFBD>ж<EFBFBD>NAND<4E>Ƿ<EFBFBD>׼<EFBFBD><D7BC>
//<2F><><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD><C4A1><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȺܿ<C8BA><DCBF><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>п<EFBFBD><D0BF><EFBFBD>NAND<4E><44>û<EFBFBD><C3BB><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>R/B<><42><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾNAND<4E><44>æ
//<2F><>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǾͶ<C7BE>ȡ<EFBFBD><C8A1>R/B<><42><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>϶<EFBFBD><CFB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD>ʵ<EFBFBD><CAB5>ȷʵ<C8B7>ǻ<EFBFBD><C7BB><EFBFBD><EFBFBD><EFBFBD>!<21><><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD>뻻<EFBFBD><EBBBBB><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>,ֻ<><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
res=NAND_WaitRB(0); //<2F>ȴ<EFBFBD>RB=0
if(res)return NSTA_TIMEOUT; //<2F><>ʱ<EFBFBD>˳<EFBFBD>
//<2F><><EFBFBD><EFBFBD>2<EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>NAND<4E>Ƿ<EFBFBD>׼<EFBFBD><D7BC><EFBFBD>õ<EFBFBD>
res=NAND_WaitRB(1); //<2F>ȴ<EFBFBD>RB=1
if(res)return NSTA_TIMEOUT; //<2F><>ʱ<EFBFBD>˳<EFBFBD>
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_MOVEDATA_CMD2; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0X85
//<2F><><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>ҳ<EFBFBD><D2B3>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)ColNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(ColNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)Dest_PageNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(Dest_PageNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(Dest_PageNum>>16);
//<2F><><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3><EFBFBD>е<EFBFBD>ַ
NAND_Delay(30);//<2F>ȴ<EFBFBD>tADL
if(NumByteToWrite%NAND_ECC_SECTOR_SIZE)//<2F><><EFBFBD><EFBFBD>NAND_ECC_SECTOR_SIZE<5A><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECCУ<43><D0A3>
{
SCB_CleanInvalidateDCache(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>D-Cache
for(i=0;i<NumByteToWrite;i++) //д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
*(vu8*)NAND_ADDRESS=*(vu8*)pBuffer++;
}
}else
{
eccnum=NumByteToWrite/NAND_ECC_SECTOR_SIZE; //<2F>õ<EFBFBD>ecc<63><63><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
eccstart=ColNum/NAND_ECC_SECTOR_SIZE;
for(res=0;res<eccnum;res++)
{
SCB_CleanInvalidateDCache(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>D-Cache
FMC_NAND_DEVICE->PCR|=1<<6; //ʹ<><CAB9>ECCУ<43><D0A3>
for(i=0;i<NAND_ECC_SECTOR_SIZE;i++) //д<><D0B4>NAND_ECC_SECTOR_SIZE<5A><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
*(vu8*)NAND_ADDRESS=*(vu8*)pBuffer++;
}
while(!(FMC_NAND_DEVICE->SR&(1<<6))); //<2F>ȴ<EFBFBD>FIFO<46><4F>
SCB_CleanInvalidateDCache(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>D-Cache
nand_dev.ecc_hdbuf[res+eccstart]=FMC_NAND_DEVICE->ECCR; //<2F><>ȡӲ<C8A1><D3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECCֵ
FMC_NAND_DEVICE->PCR&=~(1<<6); //<2F><>ֹECCУ<43><D0A3>
}
i=nand_dev.page_mainsize+0X10+eccstart*4; //<2F><><EFBFBD><EFBFBD>д<EFBFBD><D0B4>ECC<43><43>spare<72><65><EFBFBD><EFBFBD>ַ
NAND_Delay(NAND_TADL_DELAY);//<2F>ȴ<EFBFBD>
*(vu8*)(NAND_ADDRESS|NAND_CMD)=0X85; //<2F><><EFBFBD><EFBFBD>дָ<D0B4><D6B8>
//<2F><><EFBFBD>͵<EFBFBD>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)i;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(i>>8);
NAND_Delay(NAND_TADL_DELAY);//<2F>ȴ<EFBFBD>tADL
pBuffer=(u8*)&nand_dev.ecc_hdbuf[eccstart];
for(i=0;i<eccnum;i++) //д<><D0B4>ECC
{
SCB_CleanInvalidateDCache(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>D-Cache
for(res=0;res<4;res++)
{
*(vu8*)NAND_ADDRESS=*(vu8*)pBuffer++;
}
}
}
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_MOVEDATA_CMD3; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0X10
//delay_us(NAND_TPROG_DELAY); //<2F>ȴ<EFBFBD>tPROG
HAL_Delay(1);
if(NAND_WaitForReady()!=NSTA_READY)return NSTA_ERROR; //ʧ<><CAA7>
return 0; //<2F>ɹ<EFBFBD>
}
//<2F><>ȡspare<72><65><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>
//PageNum:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3>ַ,<2C><>Χ:0~(block_pagenum*block_totalnum-1)
//ColNum:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD>spare<72><65><EFBFBD><EFBFBD>ַ(spare<72><65><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD>ַ),<2C><>Χ:0~(page_sparesize-1)
//pBuffer:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><DDBB><EFBFBD><EFBFBD><EFBFBD>
//NumByteToRead:Ҫ<><D2AA>ȡ<EFBFBD><C8A1><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>page_sparesize)
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>
// <20><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
u8 NAND_ReadSpare(u32 PageNum,u16 ColNum,u8 *pBuffer,u16 NumByteToRead)
{
u8 temp=0;
u8 remainbyte=0;
remainbyte=nand_dev.page_sparesize-ColNum;
if(NumByteToRead>remainbyte) NumByteToRead=remainbyte; //ȷ<><C8B7>Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>spareʣ<65><CAA3><EFBFBD>Ĵ<EFBFBD>С
temp=NAND_ReadPage(PageNum,ColNum+nand_dev.page_mainsize,pBuffer,NumByteToRead);//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>
return temp;
}
//<2F><>spare<72><65><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD>
//PageNum:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3>ַ,<2C><>Χ:0~(block_pagenum*block_totalnum-1)
//ColNum:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD>spare<72><65><EFBFBD><EFBFBD>ַ(spare<72><65><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD>ַ),<2C><>Χ:0~(page_sparesize-1)
//pBuffer:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׵<EFBFBD>ַ
//NumByteToWrite:Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>page_sparesize)
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>
// <20><><EFBFBD><EFBFBD>,ʧ<><CAA7>
u8 NAND_WriteSpare(u32 PageNum,u16 ColNum,u8 *pBuffer,u16 NumByteToWrite)
{
u8 temp=0;
u8 remainbyte=0;
remainbyte=nand_dev.page_sparesize-ColNum;
if(NumByteToWrite>remainbyte) NumByteToWrite=remainbyte; //ȷ<><C8B7>Ҫ<EFBFBD><D2AA>ȡ<EFBFBD><C8A1><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>spareʣ<65><CAA3><EFBFBD>Ĵ<EFBFBD>С
temp=NAND_WritePage(PageNum,ColNum+nand_dev.page_mainsize,pBuffer,NumByteToWrite);//<2F><>ȡ
return temp;
}
//<2F><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>
//BlockNum:Ҫ<><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>BLOCK<43><4B><EFBFBD><EFBFBD>,<2C><>Χ:0-(block_totalnum-1)
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C><><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD>
// <20><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>ʧ<EFBFBD><CAA7>
u8 NAND_EraseBlock(u32 BlockNum)
{
if(nand_dev.id==MT29F16G08ABABA)BlockNum<<=7; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַת<D6B7><D7AA>Ϊҳ<CEAA><D2B3>ַ
else if(nand_dev.id==MT29F4G08ABADA)BlockNum<<=6;
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_ERASE0;
//<2F><><EFBFBD>Ϳ<EFBFBD><CDBF><EFBFBD>ַ
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)BlockNum;
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(BlockNum>>8);
*(vu8*)(NAND_ADDRESS|NAND_ADDR)=(u8)(BlockNum>>16);
*(vu8*)(NAND_ADDRESS|NAND_CMD)=NAND_ERASE1;
delay_ms(NAND_TBERS_DELAY); //<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD>
if(NAND_WaitForReady()!=NSTA_READY)return NSTA_ERROR;//ʧ<><CAA7>
return 0; //<2F>ɹ<EFBFBD>
}
//ȫƬ<C8AB><C6AC><EFBFBD><EFBFBD>NAND FLASH
void NAND_EraseChip(void)
{
u8 status;
u16 i=0;
for(i=0;i<nand_dev.block_totalnum;i++) //ѭ<><D1AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĿ<D0B5>
{
status=NAND_EraseBlock(i);
if(status)printf("Erase %d block fail!!<21><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ%d\r\n",i,status);//<2F><><EFBFBD><EFBFBD>ʧ<EFBFBD><CAA7>
}
}
//<2F><>ȡECC<43><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ/ż<><C5BC>λ
//oe:0,ż<><C5BC>λ
// 1,<2C><><EFBFBD><EFBFBD>λ
//eccval:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>eccֵ
//<2F><><EFBFBD><EFBFBD>ֵ:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>eccֵ(<28><><EFBFBD><EFBFBD>16λ)
u16 NAND_ECC_Get_OE(u8 oe,u32 eccval)
{
u8 i;
u16 ecctemp=0;
for(i=0;i<24;i++)
{
if((i%2)==oe)
{
if((eccval>>i)&0X01)ecctemp+=1<<(i>>1);
}
}
return ecctemp;
}
//ECCУ<43><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//eccrd:<3A><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>,ԭ<><D4AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECCֵ
//ecccl:<3A><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>ʱ,Ӳ<><D3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ECCֻ
//<2F><><EFBFBD><EFBFBD>ֵ:0,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD><EFBFBD>,ECC<43><43><EFBFBD><EFBFBD>(<28>д<EFBFBD><D0B4><EFBFBD>2<EFBFBD><32>bit<69>Ĵ<EFBFBD><C4B4><EFBFBD>,<2C>޷<EFBFBD><DEB7>ָ<EFBFBD>)
u8 NAND_ECC_Correction(u8* data_buf,u32 eccrd,u32 ecccl)
{
u16 eccrdo,eccrde,eccclo,ecccle;
u16 eccchk=0;
u16 errorpos=0;
u32 bytepos=0;
eccrdo=NAND_ECC_Get_OE(1,eccrd); //<2F><>ȡeccrd<72><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ
eccrde=NAND_ECC_Get_OE(0,eccrd); //<2F><>ȡeccrd<72><64>ż<EFBFBD><C5BC>λ
eccclo=NAND_ECC_Get_OE(1,ecccl); //<2F><>ȡecccl<63><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ
ecccle=NAND_ECC_Get_OE(0,ecccl); //<2F><>ȡecccl<63><6C>ż<EFBFBD><C5BC>λ
eccchk=eccrdo^eccrde^eccclo^ecccle;
if(eccchk==0XFFF) //ȫ1,˵<><CBB5>ֻ<EFBFBD><D6BB>1bit ECC<43><43><EFBFBD><EFBFBD>
{
errorpos=eccrdo^eccclo;
printf("errorpos:%d\r\n",errorpos);
bytepos=errorpos/8;
data_buf[bytepos]^=1<<(errorpos%8);
}else //<2F><><EFBFBD><EFBFBD>ȫ1,˵<><CBB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2bit ECC<43><43><EFBFBD><EFBFBD>,<2C>޷<EFBFBD><DEB7>޸<EFBFBD>
{
printf("2bit ecc error or more\r\n");
return 1;
}
return 0;
}
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