app1.c

IARSOURCECODE是基于LPC2478嵌入式软件IAR EWARM V4.42的应用实例代码

/*****************************************************************************
 *   app1.c:  main C entry file for NXP LPC24xx Family Microprocessors
 *
 *   应用程序，从串口接收文件，然后烧写到Flash上
 *
 *   History
 *   2007.12.13  ver 1.00    Prelimnary version, first Release
 *
******************************************************************************/
#include "LPC2468.h"                        /* LPC23xx/24xx definitions */
#include "type.h"
#include "target.h"
#include "irq.h"
#include "uart.h"
#include "ex_sdram.h"
#include "ex_norflash.h"

#define BAUDRATE  9600

/*****************************************************************************
**   Main Function  main()
*****************************************************************************/
int main (void)
{
    unsigned long i,length,count,address=0xa0000000;
    volatile WORD *ip;
    char *buf;
    DWORD NorFlashAdr;

    TargetResetInit();
    SDRAMInit();
    UARTInit(BAUDRATE);
    NORFLASHInit();

    /* 接收文件 */
    printf("This is a Uart/Flash application.It'll transfer file by uart,then write it into Flash.\n");
    printf("Please transfer the file now...\n");

    length = LoadFromUart(address) ;         // 收下来的字节数
    count = length / SECTOR_SIZE;           // 需要的扇区数
    ip = (WORD *)address;
    buf = (char *)address;

//    puts(buf);

    /* Flash烧写 */
    if ( NORFLASHCheckID() == FALSE )
    {
      printf("NOR Flash ID error!\r\n");
      while ( 1 );		
    }

    for(i=0;i<=count;i++)NORFLASHSectorErase(i);	// Flash使用之前要先擦除
    NorFlashAdr = 0x0;
    for ( i = 0; i < (length+1)/2; i++ )                // 因为存储单元为字，当length为奇数个字节时需要多补一个字节
    {
	if(!NORFLASHWriteWord( NorFlashAdr, *ip ))
        {
          printf("Write error!\n");
          while(1);
        }
	NorFlashAdr++;
        ip++;
    }

    printf("\nThe application successed!\n");


    while(1);
}

/*****************************************************************************
**                            End Of File
*****************************************************************************/