嵌入的IAP汇编代码如下：
$MOD_MX51
NAME IAP
?PR?_EraseBootLoader?IAP SEGMENT ECODE INSEG
?DT?_EraseBootLoader?IAP SEGMENT DATA OVERLAYABLE
?PR?_WriteBootLoader?IAP SEGMENT ECODE INSEG
?DT?_WriteBootLoader?IAP SEGMENT DATA OVERLAYABLE
?PR?_ReadBootLoader?IAP SEGMENT ECODE INSEG
?DT?_ReadBootLoader?IAP SEGMENT DATA OVERLAYABLE
?PR?_DelFlashByte?IAP SEGMENT ECODE INSEG
?DT?_DelFlashByte?IAP SEGMENT DATA OVERLAYABLE
?PR?_WriteFlashByte?IAP SEGMENT ECODE INSEG
?DT?_WriteFlashByte?IAP SEGMENT DATA OVERLAYABLE
?PR?_ReadFlashByte?IAP SEGMENT ECODE INSEG
?DT?_ReadFlashByte?IAP SEGMENT DATA OVERLAYABLE
PUBLIC _ReadFlashByte
PUBLIC _WriteFlashByte
PUBLIC _DelFlashByte
PUBLIC _ReadBootLoader
PUBLIC _WriteBootLoader
PUBLIC _EraseBootLoader
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
DPH DATA 083H
DPL DATA 082H
AUXR1 DATA 0A2H
EA BIT 0AFH
CMOD DATA 0D9H
ACC DATA 0E0H
IE DATA 0A8H
ESFR EPL = 01FCH;
ESFR EPM = 01FDH;
ESFR EPH = 01FEH;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
XTAL_MHZ EQU 11 ; Chip runs at 11.0592MHz,no use ?
PGM_MTP EQU 00FFF0H ; PGM-MTP routine enrty
WriteDatByte EQU 02H ; program data byte ,function code
ReadDatByte EQU 03H ; read device data of pointed address,function code
EraseBlock EQU 0CH ; erase one of 11 blocks,function code
EraseBL EQU 04H ; erase status or boot vector,function code
ProgramBL EQU 06H ; program status byte or boot vector,function code
FetchBL EQU 07H ; read status or boot vector,function code
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; #define uINT8 unsigned char
; #define uINT16 unsigned int
; /***************************************************
; **** unsigned char EraseBootLoader(uINT8 nDatAll);
; **** unsigned char DelFlashByte(uINT8 BlockHi, uINT8 FlashBlock);
; **** unsigned char WriteFlashByte(uINT8 FlashData, uINT16 FlashAddress);
; **** unsigned char ReadFlashByte(uINT16 FlashAddress);
; **** unsigned char WriteBootLoader(uINT8 nBL,uINT8 nDat); //nBL={0---StatusByte,1-----BootVectorMiddle,2----BootVectorHigh}
; **** //R7----uBL;R5------nDat
; **** unsigned char ReadBootLoader(uINT8 nBL); //nBL={0---SecERETByte,1-----StatusByte,2-----BootVector}
; **** //nBL=0/1/2/3/4/5
; *****************************************************************/
; void WaiteHere(uINT16 Delayus);
;
; /****************************************************************
; *FUNCTION DESCRIBATION:
; * uINT8 nDatAll: dump variable
; *
; *
; *
; *
; ****************************************************************/
; uINT8 EraseBootLoader(uINT8 nDatAll)
RSEG ?PR?_EraseBootLoader?IAP
_EraseBootLoader:
USING 0
PUSH IE
CLR EA; //disable interrupt
MOV A,CMOD
MOV R2,A ; store copy of CMOD
JNB ACC.6,?IAPTAG0 ; if watchdog enabled then disable
ANL CMOD,#0BFH
?IAPTAG0:
ORL AUXR1,#020H ; enable bootrom
MOV R0,XTAL_MHZ ; osc frequency 11.0592MHz
MOV R1,EraseBL ; function code
ECALL PGM_MTP
;ECALL L?0014 ; WaiteHere(20);
MOV R7,ACC ;
ANL AUXR1,#0DFH ;disable boot-rom function
MOV CMOD,R2; ;recover COMD register
SETB EA; ; enable interrupt
POP IE;
ERET
; END OF _EraseBootLoader
; /****************************************************************
; *FUNCTION DESCRIBATION: WriteBootLoader
; * uINT8 nBL :
; * uINT8 nDat:
; *
; *
; *
; ****************************************************************/
; uINT8 WriteBootLoader(uINT8 nBL,uINT8 nDat)
RSEG ?PR?_WriteBootLoader?IAP
_WriteBootLoader:
USING 0
PUSH IE
CLR EA; //disable interrupt
MOV A,CMOD
MOV R2,A ; store copy of CMOD
JNB ACC.6,?IAPTAG1 ; if watchdog enabled then disable
ANL CMOD,#0BFH
?IAPTAG1:
ORL AUXR1,#020H ; enable bootrom
MOV R0,XTAL_MHZ ; osc frequency 11.0592MHz
MOV R1,ProgramBL ; function code
MOV EPL, R7; which cell to be written
MOV ACC, R5; data to be written
ECALL PGM_MTP;
;ECALL L?0014 ; waite here for ready
MOV R7,ACC; copy Flag of operation
ANL AUXR1,#0DFH ;disable boot-rom function
MOV CMOD,R2 ; recover COMD
SETB EA; ; enable interrupt
POP IE
ERET
; END OF _WriteBootLoader
; /****************************************************************
; *FUNCTION DESCRIBATION: ReadBootLoader
; * uINT8 nBL:
; *
; *
; *
; *
; ****************************************************************/
; uINT8 ReadBootLoader(uINT8 nBL)
RSEG ?PR?_ReadBootLoader?IAP
_ReadBootLoader:
USING 0
PUSH IE
CLR EA; //disable interrupt
MOV A,CMOD
MOV R2,A ; store copy of CMOD
JNB ACC.6,?IAPTAG2 ; if watchdog enabled then disable
ANL CMOD,#0BFH
?IAPTAG2:
ORL AUXR1,#020H ; enable bootrom
MOV R0,XTAL_MHZ ; osc frequency 11.0592MHz
MOV R1,FetchBL ; function code
MOV EPL, R7 ;
ECALL PGM_MTP ;
;ECALL L?0014 ; waite for end of operation
MOV R7,ACC;
ANL AUXR1,#0DFH ;disable boot-rom function
MOV CMOD,R2 ; recover COMD
SETB EA; ; enable interrupt
POP IE
ERET
; END OF _ReadBootLoader
; /****************************************************************
; *FUNCTION DESCRIBATION: DelFlashByte
; * uINT16 FlashBlock:
; *
; *
; *
; *
; ****************************************************************/
; uINT8 DelFlashByte(uINT8 BlockHi, uINT8 FlashBlock)
RSEG ?PR?_DelFlashByte?IAP
_DelFlashByte:
USING 0
PUSH IE
CLR EA; //disable interrupt
MOV A,CMOD
MOV R2,A ; store copy of CMOD
JNB ACC.6,?IAPTAG3 ; if watchdog enabled then disable
ANL CMOD,#0BFH
?IAPTAG3:
ORL AUXR1,#020H ; enable bootrom
MOV R0,XTAL_MHZ ; osc frequency 11.0592MHz
MOV R1,EraseBlock ; function code
MOV EPH, R7;
MOV EPM, R5;
ECALL PGM_MTP ;
;;;;;;;;;;;;;;;;;;Delay here for about 1 second
;
;;;;;;;;;End of waiting here ;;;;;;;;;;;;;;;;;;
MOV R7,ACC;
ANL AUXR1,#0DFH ;disable boot-rom function
MOV CMOD,R2 ; recover COMD
SETB EA; ; enable interrupt
POP IE
ERET
; END OF _DelFlashByte
; /****************************************************************
; *FUNCTION DESCRIBATION: DelFlashByte
; * uINT16 FlashBlock:
; *
; *
; *
; *
; ****************************************************************/
; uINT8 WriteFlashByte(uINT8 FlashData, uINT16 FlashAddress)
RSEG ?PR?_WriteFlashByte?IAP
_WriteFlashByte:
USING 0
PUSH IE
CLR EA; //disable interrupt
MOV A,CMOD
MOV R2,A ; store copy of CMOD
JNB ACC.6,?IAPTAG4 ; if watchdog enabled then disable
ANL CMOD,#0BFH
?IAPTAG4:
ORL AUXR1,#020H ; enable bootrom
MOV R0,XTAL_MHZ ; osc frequency 11.0592MHz
MOV R1,WriteDatByte ; function code
MOV ACC, R7 ;data to be written
MOV EPH,#00 ;
MOV EPM,R4 ;
MOV EPL,R5 ;which cell to be written
ECALL PGM_MTP ;
;ECALL L?0014 ; waite for ready
MOV R7,ACC ;
ANL AUXR1,#0DFH ;disable boot-rom function
MOV CMOD,R2 ; recover COMD
SETB EA; ; enable interrupt
POP IE
ERET
; END OF _WriteFlashByte
; /****************************************************************
; *FUNCTION DESCRIBATION: ReadFlashByte
; * uINT16 FlashAddress:
; *
; *
; *
; *
; ****************************************************************/
; uINT8 ReadFlashByte(uINT16 FlashAddress)
RSEG ?PR?_ReadFlashByte?IAP
_ReadFlashByte:
USING 0
PUSH IE
CLR EA; //disable interrupt
MOV A,CMOD
MOV R2,A ; store copy of CMOD
JNB ACC.6,?IAPTAG5 ; if watchdog enabled then disable
ANL CMOD,#0BFH
?IAPTAG5:
ORL AUXR1,#020H ; enable bootrom
MOV R0,XTAL_MHZ ; osc frequency 11.0592MHz
MOV R1,ReadDatByte ; function code
MOV EPH,#00
MOV EPM,R6;
MOV EPL,R7;
ECALL PGM_MTP ;
;ECALL L?0014 ; waite for ready
MOV R7,ACC;
ANL AUXR1,#0DFH ;disable boot-rom function
MOV CMOD,R2 ; recover COMD
SETB EA; ; enable interrupt
POP IE;
ERET
; END OF _ReadFlashByte
; /****************************************************************
; *FUNCTION DESCRIBATION: WaiteHere
; * uINT16 Delayus:
; *
; *
; *
; *
; ****************************************************************/
; void WaiteHere(uINT16 Delayus)
END |
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