
CHAPTER 15 GRAPHIC DISPLAY PORT
15-9
PRINT AND DISPLAY TIMES
Execution times for a command (not character) shown
below.
Command Time (in
milli-Sec)
Condition
DISPLAY
A$;C HR$(13);
1.255 A$ is 20 characters
long
DISPLA Y (x,y)
A$;
1.2 A$ is 20 characters
long
DISPLAY A$ 62 Timed when cursor
was at bottom of
screen. T his is
scroll up time.
DISPLAY
F(x1,y1),(x2, y2)
80 Area to clear or fill
is 96 x 96, on even
boundary, sparkle
off.
DISPLAY F,
X(x1,y1), (x2,y2)
100 XOR area is 96 x
96, sparkle off.
DISPLAY M
(x,y) A$;
40 A$ is 10 characters
long, no sparkle
mode.
DISPLAY M
(x,y) A$;
16 A$ is 10 characters
long, allow spar kle
DISPLAY L
(x,y) A$;
80 A$ is 5 number
long, no sparkle
mode
DISPLAY L
(x,y) A$;
10 A$ is 5 numbers
long, allow spar kle
DISPLA Y P(x, y) 0.425 Same x, y point
DISPLAY LINE
(0,0), (10,10)
8 14 points in line
Times were calculated in CAMBASIC by dividing
executing time by the number of loops. General
program was in the form of:
10 CLEAR TICK(0)
20 FOR N = 0 TO 999
30 DISPLAY test
40 NEXT
50 PRINT TICK(0)/1000
Times shown are what it took to execute the entire
DISPLA Y comm and.
Reverse medium and large characters does not add a
significant amount of time.
EL DISPLAY
An EL display from Planar (Model EL320. 240.36) may
be connected to the RPC-2350G. + 5V and + 12V power
must be available. + 12V is connected to P2, “ELPWR”
pin. + 5V is taken from the board.
+ 12V m ay also be used to supply the board. Simply
connect “ ELP WR” on P2 to “ 7-30V” on P2. Install
jumper W8.
To use your own + 5V supply, connect it to the “+ 5V”
pin on P2. M ake sure jumper W8 is removed. Do not
connect “EL PWR” to any other pin on P2.
The EL display has very fast pixel on/off time.
Consequently, sparkle is m ore notice able even w hen it is
off (default). Sparkle is m ore notice able when an area is
illuminated.
Programming the EL display is the same as LCD.
EL display connects to J13. Connection is one to one
using a 2 mm ribbon cable. Cable is available from
Samtec (www. samtec.com
or 812 944 6733), part
number TC SD-10-D-12. 00-01-F
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