Matrix-orbital GLT240128 Legacy Uživatelský manuál Strana 20
- Strana / 70
- Tabulka s obsahem
- ŘEŠENÍ PROBLÉMŮ
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
Table 1: Default Values
Contrast 128
Backlight 255
Baud Rate 19.2 kbps
Data Lock False
NOTE The display module will revert back to the old settings once turned off, unless the
settings are saved.
3 Troubleshooting
3.1 The display does not turn on when power is applied.
• First, you will want to make sure that you are using the correct power connector. Standard floppy drive
power cables from your PC power supply may fit on the Power/Data Connector however they do not
have the correct pinout as can be seen in Figure ??. Matrix Orbital supplies power cable adapters for
connecting to a PC, which can be found in the Accessories Section on page 2.
• The next step is to check the power cable which you are using for continuity. If you don’t have an
ohm meter, try using a different power cable, if this does not help try using a different power supply.
• The last step will be to check the Power / Data Connector on the GLT240128. If the Power / Data
Connector has become loose, or you are unable to resolve the issue, please contact Matrix Orbital
see 15.6 on page 64 for contact information.
3.2 The display module is not communicating.
• First, check the communication cable for continuity. If you don’t have an ohm meter, try using a
different communication cable. If you are using a PC try using a different Com port.
• Second, please ensure that the display module is set to communicate on the protocol that you are
using, by checking the Protocol Select Jumpers. To change the protocol used by the display module
see Section 2.6 on page 12.
• Third, ensure that the host system and display module are both communicating on the same baud rate.
The default baud rate for the display module is 19200 bps.
• * If you are communicating to the display via I
2
C please ensure that the data is being sent to the
correct address. The default slave address for the display module is 0x50.
NOTE I
2
C communication will always require pull up resistors.
• Finally, you may reset the display to it’s default settings using the Manual Override Jumper, see
Section 2.8 on the preceding page.
Matrix Orbital GLT240128 15
- GLT240128 1
- Technical Manual 1
- Revision: 1.2 1
- Contents 2
- 1 Getting Started 6
- 1.2 Accessories 7
- 1.3 Features 8
- 1.4 Connecting to a PC 9
- 1.5 Installing the Software 10
- 2 Hardware Information 11
- 2.1 Communication Connectors 13
- 2.4 Power Through DB-9 Jumper 16
- 2.6 Protocol Select Jumpers 17
- 2.7 Filesystem Lock Jumper 18
- 2.8 Manual Override 19
- 3 Troubleshooting 20
- 4 Communications 21
- C Transaction Example 22
- 4.2 Turn Flow Control On 23
- 4.3 Turn Flow Control Off 24
- 4.4 Changing the I 24
- C Slave Address 24
- 4.5 Changing the Baud Rate 25
- 5.1 Introduction 27
- 5.2 Uploading a Font File 29
- 5.3 Setting the Current Font 29
- 5.4 Font Metrics 30
- 5.5 Set Box Space Mode 31
- 6.1 Introduction 31
- 6.2 Move Cursor Home 31
- 6.5 Auto Scroll On 32
- 7 Bitmaps 33
- 8 Bar Graphs and Drawing 35
- 8.3 Draw Pixel 36
- 8.4 Drawing a Line 36
- 8.5 Continue a Line 37
- 8.6 Draw a Rectangle 37
- 8.7 Drawing a Solid Rectangle 37
- 8.8 Initializing a Bar Graph 38
- 8.9 Drawing a Bar Graph 39
- 8.11 Shifting a Strip Chart 40
- 9 Touchpad 41
- 9.2 Set Touch Region 42
- 9.3 Delete Touch Region 42
- 9.4 Delete All Touch Regions 42
- 9.5 Set Touch Mode 43
- 9.6 Set Region Reporting Mode 43
- 9.7 Set Dragging Threshold 44
- 9.8 Set Pressure Threshold 44
- 9.9 Run Touchpad Calibration 44
- 10 Display Functions 45
- 10.4 Display Off 46
- 10.5 Set Brightness 46
- 10.6 Set and Save Brightness 46
- 10.7 Set Contrast 47
- 10.8 Set and Save Contrast 47
- 11 Filesystem 48
- 11.2 Wipe Filesystem 50
- 11.3 Deleting a File 51
- 11.4 Get Filesystem Space 51
- 11.5 Get Filesystem Directory 53
- 11.6 Filesystem Upload 53
- 11.7 Downloading a File 53
- 12 Data Security 54
- 12.2 Set Remember 55
- 12.3 Data Lock 55
- 12.4 Set and Save Data Lock 57
- 12.5 Dump the Filesystem 57
- 12.6 Write Customer Data 57
- 12.7 Read Customer Data 57
- 13 Miscellaneous 58
- 14 Command Summary 60
- 14.4 Bitmaps 61
- 14.5 Bar Graphs and Drawing 61
- 14.6 Touchpad 62
- 14.7 Display Functions 62
- 14.8 Filesystem 63
- 14.9 Data Security 63
- 14.10 Miscellaneous 64
- 14.11 Command By Number 64
- 15 Appendix 66
- 15.3 Physical Layout 67
- Figure 24: Physical Diagram 68
- Matrix Orbital GLT240128 63 68
- 15.4 Ordering Information 69
- 15.5 Definitions 69
- 15.7 Revision History 70
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