PIC24HJ128GP202 View Datasheet(PDF) - Microchip Technology
Part Name
Description
MFG CO.
'PIC24HJ128GP202' PDF : 357 Pages View PDF
PIC24HJ32GP302/304, PIC24HJ64GPX02/X04 AND PIC24HJ128GPX02/X04
EXAMPLE 5-2: LOADING THE WRITE BUFFERS
; Set up NVMCON for row programming operations
MOV
#0x4001, W0
;
MOV
W0, NVMCON
; Initialize NVMCON
; Set up a pointer to the first program memory location to be written
; program memory selected, and writes enabled
MOV
#0x0000, W0
;
MOV
W0, TBLPAG
; Initialize PM Page Boundary SFR
MOV
#0x6000, W0
; An example program memory address
; Perform the TBLWT instructions to write the latches
; 0th_program_word
MOV
#LOW_WORD_0, W2
;
MOV
#HIGH_BYTE_0, W3
;
TBLWTL W2, [W0]
; Write PM low word into program latch
TBLWTH W3, [W0++]
; Write PM high byte into program latch
; 1st_program_word
MOV
#LOW_WORD_1, W2
;
MOV
#HIGH_BYTE_1, W3
;
TBLWTL W2, [W0]
; Write PM low word into program latch
TBLWTH W3, [W0++]
; Write PM high byte into program latch
; 2nd_program_word
MOV
#LOW_WORD_2, W2
;
MOV
#HIGH_BYTE_2, W3
;
TBLWTL W2, [W0]
; Write PM low word into program latch
TBLWTH W3, [W0++]
; Write PM high byte into program latch
•
•
•
; 63rd_program_word
MOV
#LOW_WORD_31, W2
;
MOV
#HIGH_BYTE_31, W3
;
TBLWTL W2, [W0]
; Write PM low word into program latch
TBLWTH W3, [W0++]
; Write PM high byte into program latch
EXAMPLE 5-3: INITIATING A PROGRAMMING SEQUENCE
DISI
MOV
MOV
MOV
MOV
BSET
NOP
NOP
#5
#0x55, W0
W0, NVMKEY
#0xAA, W1
W1, NVMKEY
NVMCON, #WR
; Block all interrupts with priority <7
; for next 5 instructions
; Write the 55 key
;
; Write the AA key
; Start the erase sequence
; Insert two NOPs after the
; erase command is asserted
DS70293D-page 58
Preliminary
© 2009 Microchip Technology Inc.
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