167 lines
5.3 KiB
NASM
167 lines
5.3 KiB
NASM
;************************************************************************************
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;* FILE : XC88x_FLHANDLER.ASM *
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;* DESCRIPTION : Flash handler routine for XC88x AA and AB *
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;* COPYRIGHT : (c) 2006 Infineon Technologies AG *
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;* UPDATED : 14/03/2006 *
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;************************************************************************************
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$ NOMOD51
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$ DEBUG
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#include "XC88x_FLADDR.H"
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FLASH_ERASE CODE FLASH_ERASE_BROM_ENTRY
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FLASH_PROG CODE FLASH_PROGRAM_BROM_ENTRY
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FLASH_ERASE_ABORT CODE FLASH_ERASE_ABORT_BROM_ENTRY
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FLASH_READ_STATUS CODE FLASH_READ_STATUS_BROM_ENTRY
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FLASH_PROTECT CODE FLASH_PROTECT_BROM_ENTRY
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DSEG AT MAGIC_MEMORY
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DS RESERVED_BYTES ; Reserved for FLASH Handler in Boot ROM
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;------------------------------------------------------------------------------------------
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; Function Name : bit DFlErase (unsigned int DFlash0Sector, unsigned int DFlash1Sector)
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; Description : Erase DFlash Sectors (Bank3 and Bank4)
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; Input Parameter : DFlash0Sector => Bit0 = Erase Sector0
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; Bit1 = Erase Sector1
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; Bit2 = Erase Sector2
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; Bit3 = Erase Sector3
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; Bit4 = Erase Sector4
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; Bit5 = Erase Sector5
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; Bit6 = Erase Sector6
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; Bit7 = Erase Sector7
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; Bit8 = Erase Sector8
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; Bit9 = Erase Sector9
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; DFlash1Sector => Bit0 = Erase Sector0
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; Bit1 = Erase Sector1
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; Bit2 = Erase Sector2
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; Bit3 = Erase Sector3
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; Bit4 = Erase Sector4
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; Bit5 = Erase Sector5
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; Bit6 = Erase Sector6
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; Bit7 = Erase Sector7
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; Bit8 = Erase Sector8
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; Bit9 = Erase Sector9
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;
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; e.g: DFlash0Sector = 0x202
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; DFlash1Sector = 0x380
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; ==> Will erase Bank3 Sector 1
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; erase Bank3 Sector 9
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; erase Bank4 Sector 7
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; erase Bank4 Sector 8
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; erase Bank4 Sector 9
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; Return Value : Bit => 1 = Successfull
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; 0 = Fail
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; Required Stack Size = 12
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;------------------------------------------------------------------------------------------
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#if USE_DLFERASE
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?PR?_DFlErase?XC88x_FLHANDLER SEGMENT CODE
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RSEG ?PR?_DFlErase?XC88x_FLHANDLER
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PUBLIC _DFlErase
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_DFlErase:
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USING USE_BANK
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MOV AR1,R6 ; BANK3
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MOV AR0,R7 ; BANK3
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MOV AR4,R4 ; BANK4
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MOV AR3,R5 ; BANK4
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CLR A
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MOV AR5, A ; BANK0
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MOV AR6, A ; BANK1
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MOV AR7, A ; BANK2
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PUSH PSW
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PUSH ACC
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PUSH B
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#if (USE_BANK == 0)
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ANL PSW, #0xE7 ; Set to Bank0
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#elseif (USE_BANK == 1)
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SETB PSW.3
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CLR PSW.4
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#elif (USE_BANK == 2)
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CLR PSW.3
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SETB PSW.4
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#elif (USE_BANK == 3)
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ORL PSW, #0x18
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#endif
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LCALL FLASH_ERASE
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JC _derase_fail
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POP B
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POP ACC
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POP PSW
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SETB C
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RET
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_derase_fail:
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POP B
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POP ACC
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POP PSW
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CLR C
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RET
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#endif
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;------------------------------------------------------------------------------------------
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; Function Name: bit FlProg(unsigned char idata *WlBuf)
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; Description: Program the 32byte data in the WlBuf to the EEPROM
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; When calling this function, user should already programmed
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; the DPTR with the EEPROM address (aligned to 32byte boundary)
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; Input Parameter: *WlBuf ==> The pointer to the starting location of the buffer
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; in the IDATA memory.
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; Return Value: Bit => 1 = Successfull
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; 0 = Fail
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; Required Stack Size = 12
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;------------------------------------------------------------------------------------------
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?PR?_FlProg?XC88x_FLHANDLER SEGMENT CODE
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RSEG ?PR?_FlProg?XC88x_FLHANDLER
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PUBLIC _FlProg
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_FlProg:
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using USE_BANK
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MOV AR0,R7 ; move C51 parameter registers to AR0
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; this is the pointer to the WLBuf
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; MOV A,#0x6F
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; MOV DPH,A
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; MOV A,#0x0 ; the DPL will = DPL+0x20 after one successful program
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; MOV DPL,A
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PUSH PSW
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PUSH ACC
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PUSH B
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#if (USE_BANK == 0)
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ANL PSW, #0xE7 ; Set to Bank0
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#elif (USE_BANK == 1)
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SETB PSW.3
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CLR PSW.4
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#elif (USE_BANK == 2)
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CLR PSW.3
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SETB PSW.4
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#elif (USE_BANK == 3)
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ORL PSW, #0x18
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#endif
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LCALL FLASH_PROG ; LCALL FLASH_PROG
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JC _prog_fail
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POP B
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POP ACC
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POP PSW
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SETB C
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RET
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_prog_fail:
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POP B
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POP ACC
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POP PSW
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CLR C
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RET
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END
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;;#endif ;;#if (XC88xAA)
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