Remote-processing RPC-2350 Bedienungsanleitung PDF herunterladen (Seite 69)

GRAPHIC DISPLAY PORT CHAPTER 15

15-8

command. The command byte value is &59.

3.3.1.2 FC

FC1 and FC 0 set the character cursor flash rate.

3.3.1.3 FP

Set the attributes of each screen. FP0 and FP1 are

the character screen. FP2 and FP3 are the graphics

layer, or screen. F P4 and FP5 are not used.

Setting a flash rate at 16 Hz does a poor job of a

half tone effect. A flash rate of 2 Hz does get

attention.

Command example be low sets the tex t layer to flash at a

2 Hz rate.

OUT &F9,&59

OUT &F8,10

This command turns on both the character and graphics

layer.

OUT &F9,&59

OUT &F8,&17

This is equivalent to executing a DISPLAY ON

command. Since text and graphics are or’ed (by

default), you will see both.

These commands turn off the blinking cursor.

OUT &F9,&59

OUT &F8,&14

Screen overlay

This command selects how screen are displayed. There

are two screens available. Layer 1 is character and layer

2 is graphics.

Pixels on each layer can be OR’ed, XOR’ed, AND ’ed,

and Priority-OR’ed. See Figure 44 in the SED1335

technical manual for more inform ation. By default, all

text and graphics are OR’ed.

Turn screens ON and OFF

The entire display, graphics, or small character screen

display is turned off (blanke d) by executing certain

comm ands. This is useful w hen you want to alternate

graphics and small character scr een displays.

DISPLAY OFF

blanks the display. It is turned on by executing

DISPLAY ON

NOTE: Display ON/OFF does not control its power.

See DISPLAY POWER ON/OFF below.

You can turn on or off graphics and character displays

by entering the appropriate letter after ON or OFF.

DISPLAY OFF G

turns off the graphics screen.

NOTE: The cursor will continue to blink even if you

turn off the display. Execute a CONFIG

DISPLAY 0,8,0 before writing to the display

to turn off the cursor . Y ou can manually

control the cursor and screens. See “Screen

flashing and screen ON/OF F” above.

Display power ON/OFF

The display can enter a power off mode ( the controller

manual calls it “Sleep In”). This mode shuts off the

controller signals. Bias power to the display is supposed

to be removed. However, it is not on the RPC-2350.

Bias power cannot be r emoved since is supplies power to

RS-232, analog input and outputs. Therefore, do not

enter a display power OFF mode.

Some power can be saved by turning off the LCD back

light. The ground lead must be connected to P2 terminal

marked “ SWPW R:. On/off control is performed by

executing the following command:

OUT &E7,1

To turn the inverter off, execute

OUT &E7,0

Display mapping

The following information is for programmers who

understand how the SED1335 chip works and want to

put it into modes not supported by CAMBASIC.

The following is the memory map sent to SCROLL

Layer 1 (character) SAD 1 &0000

Layer 2 (graphics) SAD 2 &2000

Layer 3 (graphics) SAD 3 &6000

SAD 4 &A 000

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 82 83

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