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CFA633-RDI-KS датащи(PDF) 82 Page - Crystalfontz America, Inc.

номер детали CFA633-RDI-KS
подробное описание детали  INTELLIGENT LCD MODULE
PDF  88 Pages
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производитель  CRYSTAIFONTZ [Crystalfontz America, Inc.]
домашняя страница  https://www.crystalfontz.com/
Logo CRYSTAIFONTZ - Crystalfontz America, Inc.

CFA633-RDI-KS датащи(HTML) 82 Page - Crystalfontz America, Inc.

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Crystalfontz America, Inc.
Data Sheet Release Date 2012/02/21
www.crystalfontz.com
CFA633-RDI-KS LCD Module (Hardware v2.0 / Firmware s2v1)
February 2012
Page 82
BuildMsgDSPLY:
movlw
0xF3
movwf
dsplyCRC
; seed hi for CRC calculation
movlw
0x21
movwf
dsplyCRC+1
; seed lo for CRC calculation
LFSR
FSR1,TXBUF2
; point at transmit buffer
movlw
0x1F
; command to send data to LCD
movwf
TXBUF2
; insert command byte from us to
; CFA635
BMD1
movlw .2
ddwf
SendCount,w
; + overhead
call
ComputeCRC2
; compute CRC of transmit message
movf
dsplyCRC+1,w
movwf
POSTINC1
; append CRC byte
movf
dsplyCRC,w
movwf
POSTINC1
; append CRC byte
return
;===================================================================
SendMsg:
call
ReleaseFSR1
LFSR
FSR0,TXBUF2
movff
FSR0H,irptFSR0
movff
FSR0L,irptFSR0+1
; save interrupt use of FSR0
movff
SendCount,TXBUSY2
bsf
PIE2,TX2IE
; set transmit interrupt enable
; (bit 4)
return
;===================================================================
; macro to move string to transmit buffer
SHOW macro src, stringname
call
src
MOVLF
upper stringname, TBLPTRU
MOVLF
high stringname, TBLPTRH
MOVLF
low stringname, TBLPTRL
call
MOVE_STR
endm
;===================================================================
MOVE_STR:
tblrd
*+
movf
TABLAT,w
bz
ms1b
movwf
POSTINC1
incf
SendCount
goto
MOVE_STR
ms1b:
return
;===================================================================



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