Fairlight CVI, User Manual

Page: 214 / 283

RS
2 3 2 C
PORT CO NTRO L
W i t h t h ese fun ctions t h e r e s h o u l d b e few problems w i t h
t r a n s l a t i n g t h e examples g i v e n below i n t o a w o r k i n g c o m p u t e r
p r o g r a m . Consu l t the Ma n u a l s for y o u r compu t e r f o r t h e
a pp r o p r i a t e BASIC comma n d s.
N OT E :
The f o l l o w i n g e x a mples assume t h a t you h a v e
c o n n ected a n a ppropriate c a b l e b e t w e e n the CVI a n d y o u
c o m p u t e r (See u n d e r
Ma k i n g a C o n n e c t i n g Cable), a n d t h a t
you h a v e set the p a r a meters o n t h e C V I 's
RS232 P o r t C o n t ro l
Men u to m a t c h y o u r c o m p u t e r.
Exa m ple
1
T h i s is the s i m plest a p p l i c a t i o n . T h is s h o r t progra m s i m p l y
sends a l l key presses on t h e c o m p u t e r k e y b o a r d to t h e C V I v i a t h e
R S 2 3 2 C P o r t . This w i l l a l low y o u to u s e a l l the
C o n t r o l C o n s o l e
and P a i n t commands, a n d a lso L o a d T i t l e a n d o t h e r data load
comm a n ds. You w i l l k n o w that t h i s system i s work i n g w h e n t h e
C V I g i v es a beep e a c h t i m e t h a t you press t h e "@" k e y o n y o u r
c o m p u ter.
STA RT
R e a d a c h a r a c t e r
f r o m k e y bo a r d
Wri t e t h e c h a r a c t e r
1 0
t h e R S 2 3 2 p o r t
Exa mple 2
I f y o u r c o m p u t e r has word p r ocess i n g sof t w a re t h e n i t is a n
e a s y t a s k to crea t e a f i l e o f A S C I I C V I commands a n d d a t a . This
f i l e c a n t h e n be t r a n s m i t t e d to the C V I u s i n g t h e P R I N T
comma n d of y o u r word processor. The f i l e s h o u l d con t a i n t h e "@"
comm a n d s followed by a n y d a t a req u i red. T h i s method h a s t h e
a d v a n t a ge t h a t l a rge blocks o f d a t a , s u c h a s t i tles o r i m a ges, c a n
be s a v e d i n t h e f i l e a n d t r a n s m i t t e d t o t h e C V I w h e n e v e r
req u i red.
B e l o w i s a sample of a file which t r a n s m i t s a new t i t l e t o the
C V I t h e n p r i n ts it o n t h e C V I screen i n Preset
00.
See t h e
comma n d d e s c r i p t i o n s u n d e r Co m m a n d a n d D a t a Forma ts. T h e
f i l e w o u l d a p pea r o n the word p rocess i n g screen as:
@LT
S a m p l e of
a long t i t l e s to r e d
i n a f i l e . \ E
@PSOO
@TT 020 1 35
SOFTWA R E U P D ATE
-