Fairlight CVI, User Manual

Page: 260 / 283

RS232 P O R T C O N T R O L U P DAT E
For example,
Hie
instruction
@LM 30A 5FD
will access the specified Palette add resses in the following order:
30A, 30B, 30C, 30D, 3 1 A, 3 1 B, 3 1 C, 3 1 D, 32A, 32B . . . 3FA,
3FB, 3 FC, 3FD, 40A, 40B, 40C, 40D, 4 1 A, 4 1 B . . . 4FB, 4FC,
4FD, 50A, 50B, 50C . . . 5FB, 5 FC, 5FD.
Palette Data Format
The d a ta for each Palette location is tra nsferred as four ASCII
characters. The first of the group is always
"
P
".
This a l lows the
CVI and the remote computer to maintain d a ta sy nch ronisation.
The second third and fourth characters are ASCII hex cha racters
specifying respectively the blue, green and red data for the
Palette loca tion.
A s an example, if you wanted to ma p all the colours which
have only a green component (no red or blue) to the corresponding
shade of grey, the following instruction would be sent to the CVI:
@LM 000 OFO
POOOP I 1 I P222P33 3P444P5 5 5P666P7 7 7
P8 8 8 P999PAAAPBBBPCCCPDDDPEEEPFFF
R a p i d P a l e t t e Normalisation
If a rapid normalisation is requ ired, simply turn the
COLOURIZE button on then off again quickly. This will cause
the processor to normal ise the Palette.
This operation can be programmed from the remote compu ter
by transmitting the comma nd
@CZ @CZ.
Save Pa lette
Command:
5MbgrBGR
This is the reverse opera tion to Load Palette. The add ress
specification and data format are the same as for Load Palette.
REV.
7 S O FTWA R E UPDATE - 35