Remote-processing RPC-2350 Manuel d'utilisateur Page 63
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
GRAPHIC DISPLAY PORT CHAPTER 15
15-2
POKE SYS(15),0,0 :'Slow- no sparkle
There is an unfor tunate par adox beca use of this. Sparkle
is most noticeable when displays are updated fr equently
(5 times/second). The problem is when you want them
updated without sparkle, it takes more time.
NOTE: Sparkle suppression (default CAMBASIC
mode) can be a problem w hen wr iting lots
of text and when performing multitasking.
Writing text for 1/10 second means during
this time, all other interrupts are put on
hold for that time (interrupt latency). You
may have to sacrifice screen clarity for
speed.
Sparkle may not be objectionable in your application. It
is most noticeable on EL displays and when updating a
LCD screen with reverse (white block with black
lettering) character s.
Sparkle suppression is not completely eliminated when
enabled. You will still see random bars flickering
around the screen.
CONNECTING A DISPLAY
Operating a display is as simple as plugging the display
cable into the appropriate connector. See Figure 15-1
above for connector locations. The RPC-2350G
automatically initializes the controller on power up. A
blinking cursor is displayed in the upper left corner of
the screen.
Make sure the board works as described in Chapter 2,
Setup and Operation, before connecting any display.
LCD Display
The LCD display plugs into J9. Back light inverter is
connected separately to the + 5V and GND terminals on
P2.
The Back light inverter may be powered ON or OFF
under software control by connecting its ground to P2
terminal marked “ SWPW R” (P 2-1). This is a high
current switch to ground. By default, it is off. To turn
on, execute the BA SIC statem ent:
OUT &E7,1
To turn the inverter off, execute
OUT &E7,0
Initially connect the Back light inver ter ground lead to
“GND” on P2 or your pow er supply.
Orient the display so the back light cable (2 wire) and
lamp are on the right side, when viewing the display
from the front.
When you power up the boar d, the graphics controller is
initialized to display a blinking cursor in the upper left
corner. You should see a white light coming from the
back light lamp on the right side.
The back light requir es some w arm up time (about a
minute) in order for the display to be read able. A djust
contrast pot R30 for optimal view ing contrast.
EL Display
The EL display connects to J13. Connec tion is one to
one using a 2 mm ribbon cable.
External + 12V power must be applied to P2 terminal
marked “ELPW R”. This is necessary for display
power. You can connect this same + 12V power to the
“7-30V” terminal to power the board, if desired.
When you power up the boar d, the graphics controller is
initialized to display a blinking cursor in the upper left
corner
Verify operation - both display types
Chances are if you have the blinking cursor, the display
is going to wor k. A quick way to verify operation is to
type the following line in the immediate mode.
DISPLAY “Hello world”
The message should be displayed on the top line. The
cursor should be blinking on the next line down.
You can execute any of the display commands in the
immediate mode as well while running. F or exam ple, if
you want to draw a lighted box, execute:
DISPLAY F(100,100),(120,120)
A list of graphics programs is shown at the end of this
chapter. D ownload them to see how they display and
are program med.
DISPLAY LAYERS
There are two display layers: graphics and character.
Each layer is ‘OR ’ed’ with the o ther, meaning that a
- RPC-2350 USER'S MANUAL 1
- TABLE OF CONTENTS 2
- CHAPTER 1 OVERVIEW 5
- OVERVIEW CHAPTER 1 6
- SETUP AND OPERATION CHAPTER 2 10
- CHAPTER 2 SETUP AND OPERATION 11
- CHAPTER SYNOPSIS 16
- DESCRIPTION 16
- SAVING A PROGRAM 16
- AUTORUNNING 17
- PREVENTING AUTORUN 17
- LOADING PROGRAMS 17
- SAVING DATA TO FLASH EPROM 18
- INSTALLING 128K OR 512K FLASH 18
- LINKING PROGRAMS 18
- COMMANDS 19
- CHAPTER 4 SERIAL PORTS 20
- SERIAL PORTS CHAPTER 4 21
- CHAPTER 5 DATA MEMORY 27
- DATA MEMORY CHAPTER 5 28
- CHAPTER 6 DIGITAL LINES 34
- DIGITAL LINES CHAPTER 6 35
- CALENDAR/CLOCK CHAPTER 7 41
- CHAPTER 7 CALENDAR/CLOCK 42
- CHAPTER 8 ANALOG I/O 43
- ANALOG I/O CHAPTER 8 44
- CHAPTER 9 KEYPAD PORT 50
- KEYPAD PORT CHAPTER 9 51
- CHAPTER 10 DISPLAY PORT 52
- DISPLAY PORTS CHAPTER 10 53
- CHAPTER 11 SOUND/TIMER OUTPUT 54
- CHAPTER 12 WATCHDOG TIMER 55
- CHAPTER 13 INTERRUPTS 56
- INTERRUPTS CHAPTER 13 57
- CHAPTER 14 MULTI-MODE COUNTER 58
- MULTI-MODE COUNTER CHAPTER 14 59
- DISPLAY INFORMATION 62
- CONNECTING A DISPLAY 63
- DISPLAY LAYERS 63
- CONTRAST ADJUSTMENT 64
- PRINTING TEXT 64
- CHANGING AND LOADING FONTS 66
- DRAWING POINTS AND LINES 66
- CLEAR, FILL, AND XOR AREAS 66
- LOAD AND SAVE SCREENS 67
- ADDITIONAL SCREEN CONTROLS 68
- PRINT AND DISPLAY TIMES 70
- EL DISPLAY 70
- CABLE PIN OUTS 71
- POWER INPUT 74
- POWER OUTPUT 75
- WARNING: 75
- EXPANSION PORT P1 75
- CHAPTER 17 RESOURCES 77
- RESOURCES CHAPTER 17 78
- TECHNICAL INFORMATION 79
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