Matrix Orbital GLK12232-25-SM Technical Manual
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Matrix Orbital GLK12232-25-SM Technical Manual

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Chipsmall Limited consists of a professional team with an average of over 10 year of expertise in the distribution
of electronic components. Based in Hongkong, we have already established firm and mutual-benefit business
relationships with customers from,Europe,America and south Asia,supplying obsolete and hard-to-find components
to meet their specific needs.
With the principle of "Quality Parts,Customers Priority,Honest Operation,and Considerate Service",our business
mainly focus on the distribution of electronic components. Line cards we deal with include
Microchip,ALPS,ROHM,Xilinx,Pulse,ON,Everlight and Freescale. Main products comprise
IC,Modules,Potentiometer,IC Socket,Relay,Connector.Our parts cover such applications as commercial,industrial,
and automotives areas.
We are looking forward to setting up business relationship with you and hope to provide you with the best service
and solution. Let us make a better world for our industry!
Contact us
Tel: +86-755-8981 8866 Fax: +86-755-8427 6832
Email & Skype: info@chipsmall.com Web: www.chipsmall.com
Address: A1208, Overseas Decoration Building, #122 Zhenhua RD., Futian, Shenzhen, China
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Summary of Contents for Matrix Orbital GLK12232-25-SM

  • Page 1 Chipsmall Limited consists of a professional team with an average of over 10 year of expertise in the distribution of electronic components. Based in Hongkong, we have already established firm and mutual-benefit business relationships with customers from,Europe,America and south Asia,supplying obsolete and hard-to-find components to meet their specific needs.
  • Page 2 GLK12232-25-SM Technical Manual Revision: 2.1...

  • Page 3: Table Of Contents

    5.5 Set Box Space Mode ........23 Matrix Orbital...
  • Page 4 10.9 Assign Keypad Codes ........39 Matrix Orbital...
  • Page 5 15.10Data Security ......... . 59 Matrix Orbital...
  • Page 6 16.6 Contacting Matrix Orbital ........

  • Page 7: Getting Started

    With the ability to communicate via serial RS-232/TTL and C protocols, the versatile GLK12232-25-SM can be used with virtually any controller. The ease of use is further enhanced by an intuitive command structure to allow display settings such as backlight brightness, contrast and baud rate to be software controlled.

  • Page 8: Accessories

    Figure 2: GLK12232-25-SM Options 1.2 Accessories NOTE Matrix Orbital provides all the interface accessories needed to get your display up and running. You will find these accessories and others on our e-commerce website at http://www.matrixorbital.com. To contact a sales associate see Section 16.6 for contact information.

  • Page 9: Features

    • Two 5V - 20mA General Purpose Outputs • 16 KB memory for fonts and bitmaps • Lightning fast communication speeds, up to 115 kbps for RS-232 and 100 kbps for I • Adjustable contrast and backlight brightness Matrix Orbital GLK12232-25-SM...

  • Page 10: Connecting To A Pc

    1.4 Connecting to a PC The GLK12232-25-SM connects seamlessly to a PC and it is an excellent means of testing the function- ality and uploading new fonts and bitmaps. You will require a Communication and 5V Power Cable such as the one shown in Figure 7.
  • Page 11 7. MOGD# requires the .NET framework 2.0 and will download and install it automatically After the installation is complete there will be a Matrix Orbital entry under "Start->Programs->Matrix Or- bital" in the start menu. Click on the ’Mogd Sharp’ entry to run the program.

  • Page 12: Hardware Information

    2 Hardware Information Refer to the following diagram for this chapter: Figure 10: GLK12232-25-SM Table 1: Hardware information Power/Data Connector Protocol Select Jumpers Floppy Power Connector Filesystem Lock Jumper Keypad Interface Connector Manual Override 2.1 Power/Data Connector Matrix Orbital GLK12232-25-SM...
  • Page 13 NOTE +12V is nominal for the -V but supply of 9-15V is acceptable Figure 11: Power and Data Configuration To power up and communicate with a GLK12232-25-SM (standard or wide voltage options), the users have two options for connections: • power and data connections using the Power/Data Connector of the GLK12232-25-SM (supply Vcc with the proper voltage) •...

  • Page 14: Protocol Select Jumpers

    Similarly, in order to change the display to TTL mode, simply remove the zero ohm resistors from the 232 or I C jumpers and solder them to the TTL jumpers. Figure 12: Protocol-Select-Jumpers Matrix Orbital GLK12232-25-SM...

  • Page 15: Keypad Interface Connector

    2.3 Keypad Interface Connector The GLK12232-25-SM provides a Keypad Interface Connector which allows for up to a five by five matrix style keypad to be directly connected to the display module. Key presses are generated, when a short is detected between a row and a column. When a key press is generated a character, which is associated with the particular key press, is automatically sent on the Tx communication line.

  • Page 16: Manual Override

    (EMF) which will be generated. 2.5 Manual Override The Manual Override is provided to allow the GLK12232-25-SM to be temporarily reset to some of the factory defaults. This can be particularly helpful if the display module has been set to an unknown baud rate or I C Slave Address and you are no longer able to communicate with it.

  • Page 17: Filesystem Lock Jumper

    2.6 Filesystem Lock Jumper The Filesystem Lock Jumper allows you to lock the filesystem on the GLK12232-25-SM so that no fonts or bitmaps can be either written or deleted from the on board memory. This feature is useful in order to protect data integrity of production units, if protection of other settings is required see Section 13 To lock the filesystem, solder a zero ohm resistor or use a solder jumper pictured in Figure 16 below.

  • Page 18: Troubleshooting

    • The last step will be to check the Power / Data Connector on the GLK12232-25-SM. If the Power / Data Connector has become loose, or you are unable to resolve the issue, please contact Matrix Orbital see 16.6 on page 64 for contact information.

  • Page 19: The Display Module Is Communicating, However Text Cannot Be Displayed

    • Second, ensure that the Filesystem Lock Jumper has not been set. See Section 2.6 on page 11. • Third, please ensure that the display module’s memory is not full. The GLK12232-25-SM has 16 Kb of memory for fonts and bitmaps.

  • Page 20: C Communication Summary

    0x51, whereas the write address is 0x50 by default. This address may be changed by using cmd 254 / 51 / <address>. The GLK12232-25-SM should only be sent addresses that are even (LSB is 0). When the I...

  • Page 21: Serial Communication

    RS-232 protocol at at a default baud rate of 19,200 bps and is capable of standard baud rates from 9600 to 115,200 bps. Furthermore the GLK12232-25-SM is also capable of reproducing any non-standard baud rate in between using values entered into our baud rate generation algorithm and set through command 164 (0xA4).

  • Page 22: Turn Flow Control Off

    254 59 ASCII 254 “;” Description This command turns off flow control. Bytes may overflow the buffer without warning. NOTE This command is not available in I C mode. Remembered 4.4 Changing the I C Slave Address Matrix Orbital GLK12232-25-SM...

  • Page 23: Changing The Baud Rate

    NOTE The change in address is immediate. Remembered Always Default 0x50 4.5 Changing the Baud Rate Hexadecimal 0xFE 0x39 [speed] Syntax Decimal 254 57 [speed] ASCII 254 “9” [speed] Parameters Parameter Length Description speed Hex value corresponding to a baud rate. Matrix Orbital GLK12232-25-SM...

  • Page 24: Setting A Non-Standard Baud Rate

    12 to 2047 which corresponds to a baud range of 977 to 153,800 baud. Setting the baud rate out of this range could cause the display to stop working properly and require the Manual Override jumper to be set. Remembered Always Matrix Orbital GLK12232-25-SM...

  • Page 25: Fonts

    5 Fonts 5.1 Introduction The GLK12232-25-SM comes loaded with the ’Small Filled’ and ’Futura Bk BT 16’ fonts by default. However, it is capable of displaying any font that is uploaded to it in the correct format. MOGD# provides a simple method of generating font files from your installed fonts.

  • Page 26: Font File Format

    The bitmaps are encoded horizontally and may have variable widths, h has a width of five, i a width of three and j a width of four, see the figure below for an example of encoding the first letter h: Matrix Orbital GLK12232-25-SM...

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