89C51RD2 IAP程序代码

建立两个文件 <IAP.h>和<CalibrIAP.a51>，即可实现P89C51RD2  IAP在应用编程功能，在实际板子上验证过，解决了官方提供代码的BUG

<IAP.h>文件内容：
 extern unsigned char Write_IAP(unsigned int,float);
 extern float Read_IAP(unsigned int);
 extern unsigned char SecErase(unsigned int);
 //extern unsigned char cRead_IAP(unsigned int Flash_Address);
 //extern unsigned char cWrite_IAP(unsigned int,unsigned char);
 

<CalibrIAP.a51>文件内容：

; CalibrIAP.a51 generated from: CALIBR~1.C
; COMPILER INVOKED BY:
;        C:\keil\C51\BIN\c51.exe CALIBR~1.C NOREGPARMS OBJECTEXTEND LARGE DEBUG PRINT


NAME CALIBR_1

?PR?Write_IAP?CALIBR_1                   SEGMENT CODE 
?XD?Write_IAP?CALIBR_1                   SEGMENT XDATA OVERLAYABLE 
?PR?Read_IAP?CALIBR_1                    SEGMENT CODE 
?XD?Read_IAP?CALIBR_1                    SEGMENT XDATA OVERLAYABLE 
?PR?SecErase?CALIBR_1                    SEGMENT CODE 
?XD?SecErase?CALIBR_1                    SEGMENT XDATA OVERLAYABLE 
?PR?cRead_IAP?CALIBR_1                   SEGMENT CODE 
?XD?cRead_IAP?CALIBR_1                   SEGMENT XDATA OVERLAYABLE 
?PR?cWrite_IAP?CALIBR_1                  SEGMENT CODE 
?XD?cWrite_IAP?CALIBR_1                  SEGMENT XDATA OVERLAYABLE 
PUBLIC ?cWrite_IAP?BYTE

PUBLIC cWrite_IAP
PUBLIC ?cRead_IAP?BYTE
PUBLIC cRead_IAP
PUBLIC ?SecErase?BYTE
PUBLIC SecErase
PUBLIC ?Read_IAP?BYTE
PUBLIC Read_IAP
PUBLIC ?Write_IAP?BYTE
PUBLIC Write_IAP

RSEG  ?XD?SecErase?CALIBR_1
?SecErase?BYTE:
Sec_Address?243:   DS   2

RSEG  ?XD?cRead_IAP?CALIBR_1
?cRead_IAP?BYTE:
Flash_Address?344:   DS   2

RSEG  ?XD?cWrite_IAP?CALIBR_1
?cWrite_IAP?BYTE:
Flash_Address?445:   DS   2
      Value?446:   DS   1

RSEG  ?XD?Read_IAP?CALIBR_1
?Read_IAP?BYTE:
Flash_Address?142:   DS   2

RSEG  ?XD?Write_IAP?CALIBR_1
?Write_IAP?BYTE:
Flash_Address?040:   DS   2