把张教主的FLASH写EEPROM的移到MC9S08QG8怎么不成,哪出错了?

只看该作者 · 2007-12-14 17:48

把张教主的FLASH写EEPROM的移到MC9S08QG8怎么不成,哪出错了?
//MC9S08QG8

#include <hidef.h> /* for EnableInterrupts macro */
#include "derivative.h" /* include peripheral declarations */

//自己定义一个汇编NOP指令的宏

#define NOP() asm(nop)
#define SIZE_FUNC_RAM 50    //擦写在RAM中的空间.

//函数类型声明

void WriteEE(byte*, byte*, byte);   //写一串数据字节到E2
void EraseEE(byte*);                //擦除E2数据页

//定义一些数据段
//==============================================================
// Following data are declared as EEPROM (Flash emulation)
// Refer to PRM file for address mapping
//==============================================================
//  PRM文件定义---是EEPROM定义.*/
//    ROM                      =  READ_ONLY    0XE000 TO 0XF5FF;
//    EPROM                    =  READ_ONLY    0xF600 TO 0xFDFF;
//    ROM1                     =  READ_ONLY    0xFE00 TO 0xFFCF;
//    END
//PLACEMENT /* Here all predefined and user segments are placed into the SEGMENTS defined above. */
//    EEPROM                              INTO  EPROM;

#pragma CONST_SEG EEPROM
const byte EE_Data[2048]; //保留一页Flash空间作为E2模拟
//#pragma CONST_SEG DEFALUT //default data segment
//==============================================================
// Following data are declared in the direct addressing area
// for fast access (address < 0x100)
//==============================================================
#pragma DATA_SEG SHORT MY_ZEROPAGE //direct addressing data segment
byte testData[8]={'1', '2', '3', '4', '5', '6', '7', '8'}; //测试时被写入E2的数据

//==============================================================
// Following data are declared in the common data area
// (address >= 0x100)
//==============================================================

#pragma DATA_SEG DEFALUT //default data segment

void MCU_init(void); //初始化MCU

//主程序入口

void main(void) {

MCU_init();

EnableInterrupts;
EraseEE((byte*)EE_Data);
WriteEE((byte*)EE_Data, testData, 8);
for(;;) {
__RESET_WATCHDOG(); // feeds the dog

}

}

//MCU初始化子程序

void MCU_init(void)
{
// 配置时钟频率
FCDIV = 0x27; //set FCLK base on 8MHz Fbus  200K
}

//下面这段代码是专门为启动Flash编程命令然后查询编程结束标志

//在执行之前必须被拷贝到RAM区（任意地址），然后从RAM中运行

//=============================================================================
byte ExecEePrgCmd(byte cmd)
{
FCMD = cmd;        //set command
FSTAT_FCBEF = 1;   //command launched and FCBEF cleared
NOP();             //wait at least 4 nop
NOP();
NOP();
NOP();
if (FSTAT_FPVIOL || FSTAT_FACCERR) {  //exit if encounter any error
return(0);                            //return with error flag
}
while(!FSTAT_FCCF) {                  //wait for FCCF=1
__RESET_WATCHDOG();
}
return(1);                            //return with success
}

//定义上面一段代码的长度，编译后不超过50字节
//写一串数据到模拟E2区，大部分代码是在Flash区内运行的，只是上面关键的一小段代码必须拷贝到RAM区才能运行

void WriteEE(byte* eeAddr, byte* datBuff, byte byteCount)
{
byte i;
byte *srcPtr;
byte codeBuff[SIZE_FUNC_RAM]; //buffer size is slightly bigger than the length of ExecEePrgCmd function

//这里示范的是将关键代码拷贝到局部变量（堆栈）区。用户可以将代码拷贝到静态数据区，一样使用

//Copy ExecEePrgCmd code into RAM
srcPtr = (byte*)ExecEePrgCmd;          //function entry in Flash
for (i=0;i<SIZE_FUNC_RAM;i++) {       //do byte copy
codeBuff = srcPtr;
}

FSTAT_FACCERR = 1;                   //clear any pending Flash error flag

while (byteCount) {
*eeAddr++ = *datBuff++;             //latch data byte and memory address
DisableInterrupts;                  //禁止任何中断，很重要！！！
((byte (*)(byte))codeBuff)(0x20);   //编程一个字节在前面加 (void)就没有了报警 -C1420
EnableInterrupts;
byteCount--;
}
}

//擦除E2页面，原理基本同上//=============================================================================
// Erase a page of EEPROM (Flash emulated)
//=============================================================================
void EraseEE(byte* eeAddr)
{
byte i;
byte *srcPtr;
byte codeBuff[SIZE_FUNC_RAM]; //buffer size is slightly bigger than the length of ExecEePrgCmd function

//Copy ExecEePrgCmd code into RAM
srcPtr = (byte*)ExecEePrgCmd; //function entry in Flash
for (i=0;i<SIZE_FUNC_RAM;i++) { //do byte copy
codeBuff = srcPtr;
}

FSTAT_FACCERR = 1; //clear any pending Flash error flag

*eeAddr = 0;       //latch memory address
DisableInterrupts;
((byte (*)(byte))codeBuff)(0x40); //do page erase在前面加 (void)就没有了报警 -C1420
EnableInterrupts;
}