Analog-way Studio Scan XTD620 Instrukcja Użytkownika Pobierz pdf (Strona 19)

STUDIO SCAN XTD 620 Chapter 10 : RS-232 PROGRAMMER'S GUIDE

PAGE 19

10-4. COMMANDS DESCRIPTION

Values sent or received are in decimal.

Depending on command letter, value can be used as linear control (ex : 255w to set Horizontal Zoom at maximum) or as

set of bits (ex : T command with multiple controls).

In this case, value must be converted in binary base to understand every bit action.

Example: Host receives message TSO65

Decimal value 65 = Binary value 0100 0001.

65 = (128 x 0) + (64 x 1) + (32 x 0) + (16 x 0) + (8 x 0) + (4 x 0) + (2 x 0) + (1 x 1).

bit 6 = 1 mean output of YUV signals.

bit 4 = 0 mean RGsB output when selected with rear button.

bit 3 and bit 2 = 00 mean Standard (Underscan) output.

bit 1 and bit 0 = 01 mean NTSC standard output.

• IMAGE POSITIONING AND ZOOMING

H, V, W, S commands are used to control Size and Position

of output image in Standard or Overscan mode.

h, v, w, s commands are used to control Zooming and Panning

of output image in Zoom mode.

Commands can be used in two different ways : - Command letter alone to read present value,

- ASCII numbers followed by command letter to set a value.

NOTE: Depending on computer video input signal, the maximum values for H and V commands could be less than

255. Take care of increase H or V value using } character until reception of MISC with Hpos Max or Vpos

Max flags set.

• OUTPUT CONTROLS

T command is used to control Output Standard, Zoom Mode

, Output SOG setting and YUV / RGB setting.

Value must be converted from / to binary as follow :

bit 7

(

128

)

bit 6

(

)

bit 5

(

)

bit 4

(

)

bit 3

(

)

bit 2

(

)

bit 1

(

)

bit

(

)

Output Standard

x0 = PAL

01 = NTSC

11 = NTSC Japan

Output Image

00 = Underscan

x1 = Overscan

10 = Zoom

0 = RGB S

1 = RGsB

Read Only

0 = RGB

1 = YUV

F command control the Flicker Filter on 8 levels from 0 to 7.

N command control the output signal Black level on 256 levels from 0 to 255.

R, G, B commands control the Red or Green

or Blue level on 256 levels from 0 to 255.

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