📄 canio.lst
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0000D2 50?? 00601 movf _bootAddrH, W ; Copy the high pointer
0000D4 6EF7 00602 movwf TBLPTRH
0000D6 6EAA 00603 movwf EEADRH
00604
0000D8 50?? 00605 movf _bootAddrL, W ; Copy the low pointer
0000DA 6EF6 00606 movwf TBLPTRL
0000DC 6EA9 00607 movwf EEADR
00608
0000DE A6?? 00609 btfss MODE_AUTO_INC ; Adjust the pointer if auto inc is enabled
0000E0 D??? 00610 bra _SetPointersJp1
00611
0000E2 50?? 00612 movf _bootCount, W ; add the count to the pointer
0000E4 26?? 00613 addwf _bootAddrL, F
0000E6 6AE8 00614 clrf WREG
0000E8 22?? 00615 addwfc _bootAddrH, F
0000EA 22?? 00616 addwfc _bootAddrU, F
00617
0000EC 00618 _SetPointersJp1
00619 ; *********************************************************
00620
00621
00622 ; *********************************************************
0000EC 00623 _Decode
0000EC 0E30 00624 movlw 0x30 ; Program memory < 0x300000
0000EE 60F3 00625 cpfslt WREG2
0000F0 D??? 00626 bra _DecodeJp1
00627 #ifdef ALLOW_GET_CMD
00628 btfsc CAN_PG_BIT
00629 bra _PMRead
00630 #endif
0000F2 D??? 00631 bra _PMEraseWrite
00632
00633
0000F4 00634 _DecodeJp1
0000F4 50F3 00635 movf WREG2,W ; Config memory = 0x300000
0000F6 0A30 00636 xorlw 0x30
0000F8 E1?? 00637 bnz _DecodeJp2
00638 #ifdef ALLOW_GET_CMD
00639 btfsc CAN_PG_BIT
00640 bra _PMRead
00641 #endif
0000FA D??? 00642 bra _CFGWrite
00643
00644
0000FC 00645 _DecodeJp2
0000FC 50F3 00646 movf WREG2,W ; EEPROM data = 0xF00000
0000FE 0AF0 00647 xorlw 0xF0
000100 E1?? 00648 bnz _CANMain
00649 #ifdef ALLOW_GET_CMD
MPASM 03.20.08 Intermediate CANIO.ASM 2-3-2003 15:42:14 PAGE 16
LOC OBJECT CODE LINE SOURCE TEXT
VALUE
00650 btfsc CAN_PG_BIT
00651 bra _EERead
00652 #endif
000102 D??? 00653 bra _EEWrite
00654 ; *****************************************************************************
00655
00656
00657
00658 ; *****************************************************************************
00659 ; Function: VOID _PMRead()
00660 ; VOID _PMEraseWrite()
00661 ;
00662 ; PreCondition: WREG1 and FSR0 must be loaded with the count and address of
00663 ; the source data.
00664 ;
00665 ; Input: None.
00666 ;
00667 ; Output: None.
00668 ;
00669 ; Side
00670 ; Effects: N/A.
00671 ;
00672 ; Stack
00673 ; Requirements: N/A
00674 ;
00675 ; Overview: These routines are technically not functions since they will not
00676 ; return when called. They have been written in a linear form to
00677 ; save space. Thus 'call' and 'return' instructions are not
00678 ; included, but rather they are implied.
00679 ;
00680 ; These are the program memory read/write functions. Erase is
00681 ; available through control flags. An automatic erase option
00682 ; is also available. A write lock indicator is in place to
00683 ; insure intentional write operations.
00684 ;
00685 ; Note: write operations must be on 8-byte boundries and
00686 ; must be 8 bytes long. Also erase operations can only
00687 ; occur on 64-byte boundries.
00688 ; *****************************************************************************
00689 #ifdef ALLOW_GET_CMD
00690 _PMRead:
00691 tblrd *+ ; Fill the buffer
00692 movff TABLAT, POSTINC0
00693 decfsz WREG1, F
00694 bra _PMRead ; Not finished then repeat
00695
00696 bra _CANSendResponce
00697 #endif
00698 ; *********************************************************
00699
00700 ; *********************************************************
000104 00701 _PMEraseWrite:
000104 A4?? 00702 btfss MODE_AUTO_ERASE ; Erase if auto erase is requested
MPASM 03.20.08 Intermediate CANIO.ASM 2-3-2003 15:42:14 PAGE 17
LOC OBJECT CODE LINE SOURCE TEXT
VALUE
000106 D??? 00703 bra _PMWrite
00704
000108 00705 _PMErase:
000108 50F6 00706 movf TBLPTRL, W ; Check for a valid 64 byte border
00010A 0B3F 00707 andlw b'00111111'
00010C E1?? 00708 bnz _PMWrite
00709
00010E 00710 _PMEraseJp1
00010E 0E94 00711 movlw b'10010100' ; Setup erase
000110 D??? 00712 rcall _StartWrite ; Erase the row
00713
000112 00714 _PMWrite:
000112 B2?? 00715 btfsc MODE_ERASE_ONLY ; Don't write if erase only is requested
00716 #ifdef ALLOW_GET_CMD
00717 bra _CANSendAck
00718 #else
000114 D??? 00719 bra _CANMain
00720 #endif
00721
000116 50F6 00722 movf TBLPTRL, W ; Check for a valid 8 byte border
000118 0B07 00723 andlw b'00000111'
00011A E1?? 00724 bnz _CANMain
00725
00011C 0E08 00726 movlw 0x08
00011E 6EF4 00727 movwf WREG1
00728
000120 00729 _PMWriteLp1
000120 50EE 00730 movf POSTINC0, W ; Load the holding registers
000122 6EF5 00731 movwf TABLAT
00732
000124 D??? 00733 rcall _UpdateChksum ; Adjust the checksum
00734
000126 000D 00735 tblwt *+
00736
000128 2EF4 00737 decfsz WREG1, F
00012A D??? 00738 bra _PMWriteLp1
00739
00740 #ifdef MODE_SELF_VERIFY
00012C 0E08 00741 movlw 0x08
00012E 6EF4 00742 movwf WREG1
000130 00743 _PMWriteLp2
000130 000A 00744 tblrd *- ; Point back into the block
000132 50ED 00745 movf POSTDEC0, W
000134 2EF4 00746 decfsz WREG1, F
000136 D??? 00747 bra _PMWriteLp2
00748
000138 0E84 00749 movlw b'10000100' ; Setup writes
00013A D??? 00750 rcall _StartWrite ; Write the data
00751
00013C 0E08 00752 movlw 0x08
00013E 6EF4 00753 movwf WREG1
00754
000140 00755 _PMReadBackLp1
MPASM 03.20.08 Intermediate CANIO.ASM 2-3-2003 15:42:14 PAGE 18
LOC OBJECT CODE LINE SOURCE TEXT
VALUE
000140 0009 00756 tblrd *+ ; Test the data
000142 50F5 00757 movf TABLAT, W
000144 18EE 00758 xorwf POSTINC0, W
000146 A4D8 00759 btfss STATUS, Z
000148 80?? 00760 bsf ERR_VERIFY
00761
00014A 2EF4 00762 decfsz WREG1, F
00014C D??? 00763 bra _PMReadBackLp1 ; Not finished then repeat
00764
00765 #else
00766 tblrd *- ; Point back into the block
00767
00768 movlw b'10000100' ; Setup writes
00769 rcall _StartWrite ; Write the data
00770
00771 tblrd *+ ; Return the pointer position
00772 #endif
00773
00774 #ifdef ALLOW_GET_CMD
00775 bra _CANSendAck
00776 #else
00014E D??? 00777 bra _CANMain
00778 #endif
00779 ; *****************************************************************************
00780
00781
00782
00783
00784 ; *****************************************************************************
00785 ; Function: VOID _CFGWrite()
00786 ; VOID _CFGRead()
00787 ;
00788 ; PreCondition: WREG1 and F⌨️ 快捷键说明
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