Matrix-orbital GLK12232-25-SM Legacy Manual do Utilizador

Memory LockdownGPOs Keypad Connector Power/DataConnectorConfiguration JumpersFigure 3: Electrical Connections3.1.1 Power ConnectionsWARNINGS• Do not a

GNDTXRX+5V+5VGNDGND+12VFigure 4: Power and Data ConfigurationIf a standard module is ordered a 5 Volt input must be applied. You have two options for t

Table 1: RS-232 PinoutPin Number Direction Description LCD Host2 Data from LCD Data out (LCD) Tx Rx3 Data to LCD Data in (LCD) Rx Tx5 - Ground gnd gnd

the indicated I2C setting. The required modification must be carried out, as described in the Figure below.Figure 7: I2C ConnectionsTo communicate in I

The two outputs differ slightly in specification;• G1 provides an output which is switched LOW when ON. When G1 is OFF it is pulled up to +5Vthrough 15

4 Displaying TextThis chapter describes the various text-display commands in detail.4.1 GeneralText is displayed on the GLK12232-25-SM using fonts sav

scrolling, care should be taken to clear areas where text is being written, particularly when wrapping occurs.This may be done using the “Draw solid r

• [y space] specifies the number of pixels to place between rows of text (i.e. line spacing).• [scroll row] specifies the pixel row where scrolling shou

Each pixel in a bitmap is described by a single bit, and may only have the values ON or OFF. Forexample, shades of grey are not supported.5.2 Graphics

5.2.6 Draw Solid Rectangle (254 120 [color][x1][y1][x2][y2])This command draws a solid rectangle in the specified color (0 = white, non-zero = black).

ContentsContents ii1 Introduction 11.1 What to Expect From the GLK12232-25-SM . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 What Not to Expec

5.3 Flow ControlThe display has built in flow control which is very useful during direct bitmap display and multiple pixelplacement. Flow control is en

6.1 GeneralThe display keypad interface processes the keypad row / column matrix into a serial (RS-232 or I2C)data byte stream. Aside from this proces

Table 2: Keypad LayoutColumns1 2 3 4 51 A B C D E2 F G H I JRows 3 K L M N O4 P Q R S T5 U V W X YNOTE The keypad connector must be wired with columns

Two modes of auto repeat are available and are set via the same command.1. Resend Key Code: This mode is similar to the action of a keyboard on a PC.

6.5.5 Clear key buffer (254 69)This command clears any unread keypresses. In a menuing application, if the user presses a key whichchanges the menu co

Of course, the average module will simply have files loaded into it and it will then get to work, withoutever having to perform this file reorganization

7.3.3 Upload Font (254 36 [ref] [file size] [file data])This command begins a font upload to the display’s non-volatile memory. [ref] is the reference n

Table 3: File Format0xFF 0xFF X size Y size Start End O-High O-LowWidth O-High O-Low Width O-High O-Low Width O-HighO-Low Width O-High O-Low Width O-H

Table 4: Uploading the file to the ModuleHost sends Module sends0xfe’$’ (command))’2’ (reference0x01 (host confirms echo)0x5e (low size)0x5e (echo)0x01

Figure 15: Bitmaps for h, i, and jNow the bitmaps have to be converted to bytes. If the font is 8 bits high it becomes a fairly simple jobbecause each

5.2.6 Draw Solid Rectangle (254 120 [color][x1][y1][x2][y2]) . . . . . . . . . . . . . . . 155.2.7 Initialize Bar Graph (254 103 [ref][type][x1][y1][x

Table 6: Explanation of Bytes in the FileFF FF Placeholders for actual EOF05 Font width07 Font height68 First ASCII character defined70 Last ASCII char

8.1.2 Set Contrast (254 80 [contrast])This command sets the display’s contrast to [contrast], where [contrast] is a value between 0x00 and0xFF (betwee

8.1.8 General Purpose Output On (254 86 [gpo #])This command turns ON either of the general purpose outputs. [gpo #] is 1 for G1 or 2 for G2. Pleaseno

Table 8: Speed SettingsSpeed Value Speed20 Hex 9600 baud0F Hex 19200 baud95 Hex 57600 baud03 Hex 76800 baud8A Hex 115000 baud8.1.13 Set Serial Number

9.2 Issuing CommandsCommands are issued to the display by the micro-controller. In a test setup, commands can be issuedto the display by means of a BA

Command Syntax Default NotesSet text insertion point totop leftFE 48254 72254 ’H’n/a This commandmoves the textinsertion pointto the top leftof the di

Command Syntax NotesPut pixel FE 70 [x][y]254 112 [x][y]254 ’p’ [x][y]Puts pixel in position (x,y). Usescurrent drawing color.Draw outline rectangle F

Command Syntax Default NotesAuto repeat mode off FE 60254 96254 ’‘’off Applies to keypadonlyAuto transmit keypressesonFE 41254 65254 ’A’on Sets auto t

Command Syntax Default NotesUpload bitmap FE ^E [ref] [size] [data]254 94[ref] [size] [data]254 ’^’ [ref] [size] [data]n/a Uploads a bitmapto the memo

Command Syntax Default NotesSet backlight brightnessand saveFE 98254 152on Changes theintensity of thebacklight. Back-light brightnessis saved for sub

8.1.10 Set I2C Address 254 51 [address]) . . . . . . . . . . . . . . . . . . . . . . . . . . . 288.1.11 Read Module Type (254 55) . . . . . . . . . .

Command Syntax Default NotesSet Serial Number FE 34 [byte1][byte2]254 52 [byte1][byte2]254 ’4’ [byte1][byte2]n/a This is a one-time-use com-mand which

Table 21: Optical CharacteristicsPixel Layout 122 x 32pixels XxYNumber of Characters 80 (Maximum 20 Characters x 4Lines with 5x7 Font)Display Area 60.

Model E V VPT EL FLLCD0821 a a n/a n/a n/aLCD2041 a a n/a n/a n/aLCD4021 a a n/a n/a n/aLCD4041 a n/a a a n/aLK162-12 a a n/a n/a n/aLK202-25 a a n/a

1 IntroductionThe GLK12232-25-SM comes equipped with the following features;• 122 x 32 pixel graphics display• Text display using built in or user sup

1.4 mogd.exeMatrix Orbital has developed an interface program which exercises all the features of the display. Itis also used to manage font and graph

Make certain the GLK12232-25-SM is equipped with the proper connector for use with this cable.Figure 1: Connections for Testing1. Refer to Figure abov

1.8 Trying out a KeypadSince a number of different keypad types can be connected to the display, the results may be a littleunpredictable. At this poi

NOTE This procedure does not change settings in the memory chip, it uses default set-tings stored in the main processor. This allows the user to commu