PIC24FJ128GB MICROCHIP [Microchip Technology], PIC24FJ128GB Datasheet - Page 61
PIC24FJ128GB
Manufacturer Part Number
PIC24FJ128GB
Description
64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC24FJ128GB.pdf
(328 pages)
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EXAMPLE 4-2:
EXAMPLE 4-3:
© 2008 Microchip Technology Inc.
; Set up NVMCON for row programming operations
; Set up a pointer to the first program memory location to be written
; program memory selected, and writes enabled
; Perform the TBLWT instructions to write the latches
; 0th_program_word
; 1st_program_word
;
; 63rd_program_word
2nd_program_word
MOV
MOV
MOV
MOV
MOV
MOV
MOV
TBLWTL
TBLWTH
MOV
MOV
TBLWTL
TBLWTH
MOV
MOV
TBLWTL
TBLWTH
•
•
•
MOV
MOV
TBLWTL
TBLWTH
DISI
MOV
MOV
MOV
MOV
BSET
BTSC
BRA
#5
#0x55, W0
W0, NVMKEY
#0xAA, W1
W1, NVMKEY
NVMCON, #WR
NVMCON, #15
$-2
#0x4001, W0
W0, NVMCON
#0x0000, W0
W0, TBLPAG
#0x6000, W0
#LOW_WORD_0, W2
#HIGH_BYTE_0, W3
W2, [W0]
W3, [W0++]
#LOW_WORD_1, W2
#HIGH_BYTE_1, W3
W2, [W0]
W3, [W0++]
#LOW_WORD_2, W2
#HIGH_BYTE_2, W3
W2, [W0]
W3, [W0++]
#LOW_WORD_31, W2
#HIGH_BYTE_31, W3
W2, [W0]
W3, [W0]
LOADING THE WRITE BUFFERS
INITIATING A PROGRAMMING SEQUENCE
PIC24FJ256GB110 FAMILY
Preliminary
; Block all interrupts with priority <7
; for next 5 instructions
; Write the 55 key
;
; Write the AA key
; Start the erase sequence
; and wait for it to be
; completed
;
; Initialize NVMCON
;
; Initialize PM Page Boundary SFR
; An example program memory address
;
;
; Write PM low word into program latch
; Write PM high byte into program latch
;
;
; Write PM low word into program latch
; Write PM high byte into program latch
;
;
; Write PM low word into program latch
; Write PM high byte into program latch
;
;
; Write PM low word into program latch
; Write PM high byte into program latch
DS39897B-page 59
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