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sbcp-uc/src/Flash Operations.s
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Flash Operations.s
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This document is not UTF8. It was detected as Shift JIS and converted to UTF8 for display.
;*************************************************************************
;*
;* Emulating Data EEPROM for PIC24 Microcontrollers and
;* dsPIC Digital Signal Controllers
;*
;*************************************************************************
;* FileName: Flash Operations.s
;* Compiler: MPLAB C30, v2.01 or higher
;* Company: Microchip Technology, Inc.
;*
;* Software License Agreement
;*
;* Copyright ｩ 2007 Microchip Technology Inc. All rights reserved.
;*
;* Microchip licenses to you the right to use, modify, copy and distribute
;* Software only when embedded on a Microchip microcontroller or digital
;* signal controller, which is integrated into your product or third party
;* product (pursuant to the sublicense terms in the accompanying license
;* agreement).
;*
;* You should refer to the license agreement accompanying this Software for
;* additional information regarding your rights and obligations.
;*
;* SOFTWARE AND DOCUMENTATION ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY
;* KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY
;* WARRANTY OF MERCHANTABILITY, TITLE, NON-INFRINGEMENT AND FITNESS FOR A
;* PARTICULAR PURPOSE. IN NO EVENT SHALL MICROCHIP OR ITS LICENSORS BE
;* LIABLE OR OBLIGATED UNDER CONTRACT, NEGLIGENCE, STRICT LIABILITY,
;* CONTRIBUTION, BREACH OF WARRANTY, OR OTHER LEGAL EQUITABLE THEORY ANY
;* DIRECT OR INDIRECT DAMAGES OR EXPENSES INCLUDING BUT NOT LIMITED TO ANY
;* INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE OR CONSEQUENTIAL DAMAGES, LOST
;* PROFITS OR LOST DATA, COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY,
;* SERVICES, OR ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT LIMITED TO
;* ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS.
;*
;* Author Date Comment
;*************************************************************************
;* D. Otten 2007/05/01 Version 1.0.0 - Initial Release
;* D. Otten 2007/05/15 Version 1.0.1 - First publication release
;************************************************************************/
.global _ReadPMHigh
.global _ReadPMLow
.global _UnlockPM
.global _WritePMHigh
.global _WritePMHighB
.global _WritePMLow
.global _WritePMLowB
.section .text
_ReadPMHigh:
tblrdh [W0],W0
return
_ReadPMLow:
tblrdl [W0],W0
return
_UnlockPM:
push W0
disi #5
mov #0x55,W0
mov W0, NVMKEY
mov #0xAA, W0
mov W0, NVMKEY
bset NVMCON, #15
nop
nop
btsc NVMCON, #15
bra $-2
pop W0
return
_WritePMHigh:
tblwth W0,[W1]
return
_WritePMHighB:
tblwth.b W0,[W1]
return
_WritePMLow:
tblwtl W0,[W1]
return
_WritePMLowB:
tblwtl.b W0,[W1]
return
.end
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