參數(shù)資料
型號： DM164134
廠商： Microchip Technology
文件頁數(shù)： 89/116頁
文件大?。?/td> 0K
描述： KIT DEV PIC18F4XK22
標準包裝： 1
系列： PIC® 18F
類型： MCU
適用于相關產(chǎn)品： PIC18F4XK22，PIC18F2XK22
所含物品： 板，文檔
PIC18FXX8
DS41159E-page 72
2006 Microchip Technology Inc.
EXAMPLE 6-3:
WRITING TO FLASH PROGRAM MEMORY
MOVLW
D'64
; number of bytes in erase block
MOVWF
COUNTER
MOVLW
high (BUFFER_ADDR)
; point to buffer
MOVWF
FSR0H
MOVLW
low (BUFFER_ADDR)
MOVWF
FSR0L
MOVLW
upper (CODE_ADDR)
; Load TBLPTR with the base
MOVWF
TBLPTRU
; address of the memory block
MOVLW
high (CODE_ADDR)
MOVWF
TBLPTRH
MOVLW
low (CODE_ADDR)
MOVWF
TBLPTRL
READ_BLOCK
TBLRD*+
; read into TABLAT, and inc
MOVF
TABLAT, W
; get data
MOVWF
POSTINC0
; store data
DECFSZ
COUNTER
; done?
BRA
READ_BLOCK
; repeat
MODIFY_WORD
MOVLW
DATA_ADDR_HIGH
; point to buffer
MOVWF
FSR0H
MOVLW
DATA_ADDR_LOW
MOVWF
FSR0L
MOVLW
NEW_DATA_LOW
; update buffer word
MOVWF
POSTINC0
MOVLW
NEW_DATA_HIGH
MOVWF
INDF0
ERASE_BLOCK
MOVLW
upper (CODE_ADDR)
; load TBLPTR with the base
MOVWF
TBLPTRU
; address of the memory block
MOVLW
high (CODE_ADDR)
MOVWF
TBLPTRH
MOVLW
low (CODE_ADDR)
MOVWF
TBLPTRL
BSF
EECON1, EEPGD
; point to FLASH program memory
BCF
EECON1, CFGS
; access FLASH program memory
BSF
EECON1, WREN
; enable write to memory
BSF
EECON1, FREE
; enable Row Erase operation
BCF
INTCON, GIE
; disable interrupts
MOVLW
55h
Required
MOVWF
EECON2
; write 55H
Sequence
MOVLW
0AAh
MOVWF
EECON2
; write AAH
BSF
EECON1, WR
; start erase (CPU stall)
NOP
BSF
INTCON, GIE
; re-enable interrupts
TBLRD*-
; dummy read decrement
WRITE_BUFFER_BACK
MOVLW
8
; number of write buffer groups of 8 bytes
MOVWF
COUNTER_HI
MOVLW
high (BUFFER_ADDR)
; point to buffer
MOVWF
FSR0H
MOVLW
low (BUFFER_ADDR)
MOVWF
FSR0L
PROGRAM_LOOP
MOVLW
8
; number of bytes in holding register
MOVWF
COUNTER
WRITE_WORD_TO_HREGS
MOVFW
POSTINC0, W
; get low byte of buffer data
MOVWF
TABLAT
; present data to table latch
TBLWT+*
; write data, perform a short write
; to internal TBLWT holding register.
DECFSZ
COUNTER
; loop until buffers are full
BRA
WRITE_WORD_TO_HREGS
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相關代理商/技術參數(shù)
參數(shù)描述
DM164135 制造商:Microchip Technology Inc 功能描述:KIT, ONEPIC DEMO BOARD, PLUS PICKIT 3 制造商:Microchip Technology Inc 功能描述:KIT, ONEPIC DEMO BOARD, PLUS PICKIT 3; SVHC:No SVHC (19-Dec-2012) ;RoHS Compliant: Yes 制造商:Microchip Technology Inc 功能描述:One PIC MCU Platform Board with PICkit 3
DM164135 制造商:Microchip Technology Inc 功能描述:PICKIT 3 IN-CIRCUIT DEBUGGER
DM173001 功能描述:開發(fā)板和工具包 - PIC / DSPIC PICDEM 17 PIC17CXX RoHS:否 制造商:Microchip Technology 產(chǎn)品:Starter Kits 工具用于評估:chipKIT 核心:Uno32 接口類型: 工作電源電壓:
DM180021 功能描述:開發(fā)板和工具包 - PIC / DSPIC PIC18 Starter Kit RoHS:否 制造商:Microchip Technology 產(chǎn)品:Starter Kits 工具用于評估:chipKIT 核心:Uno32 接口類型: 工作電源電壓:
DM1800-434MB 功能描述:射頻模塊 DM1800 Base Station 433.92 MHz RoHS:否 制造商:Linx Technologies 產(chǎn)品:Transceiver Modules 頻帶:902 MHz to 928 MHz 輸出功率:- 15.5 dBm to + 12.5 dBm 接口類型:UART 工作電源電壓:- 0.3 VDC to + 5.5 VDC 傳輸供電電流:38.1 mA 接收供電電流:22.7 mA 天線連接器類型:U.FL 最大工作溫度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
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