原创 DSP281X变量地址数组定位方法

void FlashObj::ChipErase(void)<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

{

  Busy = true;

  FLASH[0x5555] = 0xaa; 

  FLASH[0x2AAA] = 0x55; 

  FLASH[0x5555] = 0x80;

  FLASH[0x5555] = 0xaa; 

  FLASH[0x2AAA] = 0x55; 

  FLASH[0x5555] = 0x10;

  Wait(FLASH[0x5555]);

  Busy = false;

}

在函数ChipErase中,Flash变量地址0x85555是用FLASH[0x5555]表达的.

这样用数组寻址比较直观~~~

实现方法如下:

1.在CMD文件中

MEMORY

{

PAGE 0:    /* Program Memory */

PAGE 1:    /* Data Memory */

   ERAM        : origin = 0x100000, length = 0x04000

   EFLASH      : origin = 0x080000, length = 0x10000

}

SECTIONS

{

   ERamRegsFile          : > ERAM,        PAGE = 1

   EFlashRegsFile        : > EFLASH,      PAGE = 1

}

2.在C/C++文件中

#pragma DATA_SECTION("ERamRegsFile")

volatile unsigned int RAM[0x4000];

#pragma DATA_SECTION("EFlashRegsFile")

volatile unsigned int FLASH[0x10000];

3.在应用程序中

extern unsigned int RAM[];

extern unsigned int FLASH[];