main.c

Falsh 读写的demo

/*
*********************************************************************************************************
* File     : Main.C
* Contents :
*
* $Date    : 09/18/06    Kimi    v0.1
* $Date    : 10/18/06    Kimi    v0.2
* $Date    : 11/02/06    Kimi    v1.0
*
* Copyright (c) 2006 Fameg, Inc. All rights reserved
*********************************************************************************************************
*/

#define ALLOCATE_EXTERN                                // Declare GLOBAL variables and functions

#include "main.h"

//----------------------------------------------------------------------------
// Description:
//
//----------------------------------------------------------------------------
void  Timer0 (void) interrupt 1 using 2
{
                                                       // Restore the counter to 10 ms
    TH0         = 0x3C;                                // 0x3CB0, CPU 60MHz, 10ms
    TL0         = 0xB0;

    if (DelayTimer)
    {
        DelayTimer--;
    }

    if (SmFlushTimer)
    {
        SmFlushTimer--;
        if (SmFlushTimer == 0)
        {
            SmFlushFlag = true;
        }
    }
}

//----------------------------------------------------------------------------
// Description:
//
//----------------------------------------------------------------------------
void  SPI_INT_ISR (void) interrupt 7 using 3
{
    if (CHIPINT & bmSPI_INT)
    {
        if (SPI_ST & bmRFFINT)
        {
// receive data from SPI 
        }
        if (SPI_ST & bmTEFINT)
        {
// send data to SPI 
        }
    }
}

//----------------------------------------------------------------------------
// Description:
//   Read Operation
//----------------------------------------------------------------------------
void  Read (void)
{
    UINT16  i;
    BYTE    j;

    for (i = 0; i < SectorCount; i++)
    {
        for (j = 0; j < 4; j++)
        {
            if (j == 0)
            {
                SmReadSector();
            }
            else
            {
                SmReadNextSector();
            } 
// you should add code here to send the 512 byte data of IN FIFO to SPI 
            SFI_SKIP    = 0x82;                        // Skip Data Packet in order to Read Next 512 Data Packet
        }
    }
}

//----------------------------------------------------------------------------
// Description:
//   Write Operation
//----------------------------------------------------------------------------
void  Write (void)
{
    UINT16  i;
    BYTE    j;

    for (i = 0; i < SectorCount; i++)
    {
        for (j = 0; j < 4; j++)
        { 
// you should add code here to receive data from SPI and then copy this data to OUT FIFO  
// start APLIF，send data to NAND FLASH
            if (j == 0)
            {
                SmWriteSector();
            }
            else
            {
                SmWriteNextSector();
            }
        }
    }
}

//----------------------------------------------------------------------------
// Description:
//
//----------------------------------------------------------------------------
void  main (void)
{
    TdInit();

    SmEraseAll();

    while (true)
    {
        SectorStart = 0;
        SectorCount = 1;
        Write();

        SectorStart = 0;
        SectorCount = 1;
        Read();
        
        if (SmFlushFlag)
        {
            SmFlushBlock();
        }
    }
}