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Sigma DE2-70 manual Using the LCD Module, Digit Lcd

Models: DE2-70

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5.5 Using the LCD Module

DE2-70 User Manual

5.5 Using the LCD Module

The LCD module has built-in fonts and can be used to display text by sending appropriate commands to the display controller, which is called HD44780. Detailed information for using the display is available in its datasheet, which can be found on the manufacturer's web site, and from the Datasheet/LCD folder on the DE2-70 System CD-ROM. A schematic diagram of the LCD module showing connections to the Cyclone II FPGA is given in Figure 5.9. The associated pin assignments appear in Table 5.6.

	Q1	8050	Q2	8550
					C6
VCC5				R34	1u
VCC5
VCC43				680
VCC43
LCD_ON	R35	680		Q3
				8050

LCD_D[0..7]							VCC43			Q4			8550
										Q4			8550

													R36

																																											TNO LCCD
													680			LLCBD			7LCDD		6LCDD		5DDCL		4LCDD		3LCDD		2LCDD		1LCDD		0LCDD		ENLCD		WLCRD				SLCRD				CVCLCD
													680
LCD_BLON R37			680										8050
LCD_BLON R37			680										Q5
															16		15		14		13		12		11		10		9		8		7		6		5				4		3		2		1


							DIS1
							DIS1

															D BL 7 6 5 4 3 2 1 0 EN N D D D D D D D D G																								WR SR TN CVC DN O G C
															D BL 7 6 5 4 3 2 1 0 EN N D D D D D D D D G																								WR SR TN CVC DN O G C
								2						X	16 DIGIT LCD

VCC43

R38 1K

R39 47

		LCD-2x16
Figure 5.9. Schematic diagram of the LCD module.

Signal Name	FPGA Pin No.			Description

LCD_DATA[0]	PIN_E1			LCD Data[0]

LCD_DATA[1]	PIN_E3			LCD Data[1]

LCD_DATA[2]	PIN_D2			LCD Data[2]

LCD_DATA[3]	PIN_D3			LCD Data[3]

LCD_DATA[4]	PIN_C1			LCD Data[4]

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Sigma DE2-70 manual Using the LCD Module, Digit Lcd

Contents

Version Copyright 2007 Terasic TechnologiesChapter 4 DE2-70 Video Utility Chapter 5 Using the DE2-70 BoardAltera DE2 Board Chapter 3 DE2-70 Control PanelChapter 7 Appendix Chapter 6 Examples of Advanced DemonstrationsAltera DE2 Board DE2-70 User Manual 1.1 Package ContentsDE2-70 Package Chapter1.2 The DE2-70 Board Assembly San Jose, California, 95134 USA Email university@altera.com 1.3 Getting HelpTerasic Technologies No. 356, Sec. 1, Fusing E. Rd Altera Corporation 101 Innovation Drive2.1 Layout and Components Altera DE2-70 BoardChapter 2.2 Block Diagram of the DE2-70 Board Cyclone II 2C70 FPGA Serial Configuration device and USB Blaster circuitSDRAM Pushbutton switchesToggle switches SSRAM10/100 Ethernet controller Audio CODECVGA output NTSC/PAL/ SECAM TV decoder circuitTwo 40-pin expansion headers 2.3 Power-up the DE2-70 BoardSerial ports IrDA transceiverThe LCD display shows Welcome to the Altera DE2-70 DE2-70 Control Panel 3.1 Control Panel SetupChapter Figure 3.1. The DE2-70 Control Panel 3.2 Controlling the LEDs, 7-Segment Displays and LCD Display Figure 3.4. Controlling 7-SEG display Figure 3.3. Controlling LEDsDE2-70 User Manual 3.3 Switches and Buttons 3.4 SDRAM/SSRAM/Flash Controller and Programmer Figure 3.7. Accessing the SDRAM-U1 3.5 USB Monitoring 3. Press Load Memory Content to a File button3.6 PS2 Device 3.7 SD CARD 3.8 Audio Playing and Recording Figure 3.11. Playing audio from a selected wave file 3.9 Overall Structure of the DE2-70 Control Panel DE2-70 User Manual Figure 3.13. The block diagram of the DE2-70 control panelFPGA/ SOPC DE2-70 Video Utility 4.1 Video Utility SetupChapter 4.2 VGA Display 4.3 Video Capture 4.4 Overall Structure of the DE2-70 Video Utility Figure 4.4. Video Capture Block Diagram 5.1 Configuring the Cyclone II FPGA Using the DE2-70 BoardChapter Configuring the EPCS16 in AS Mode Configuring the FPGA in JTAG ModeFPGA 5.2 Using the LEDs and Switches Figure 5.4. Schematic diagram of the pushbutton and toggle switches FPGA Pin No Figure 5.5. Schematic diagram of the LEDsSignal Name DE2-70 User ManualTable 5.2. Pin assignments for the pushbutton switches Table 5.1. Pin assignments for the toggle switchesDE2-70 User Manual 5.3 Using the 7-segment Displays DE2-70 User Manual 5.4 Clock Circuitry DE2-70 User Manual Figure 5.8. Block diagram of the clock distributionConnector Table 5.5. Pin assignments for the clock inputs16 DIGIT LCD 5.5 Using the LCD Module5.6 Using the Expansion Header 1.8V 2.5V protection registors and diodes not shown for other portsprotection registors and diodes not shown for other ports DE2-70 User ManualDE2-70 User Manual DE2-70 User Manual Table 5.8. Pin assignments for the expansion headers5.7 Using VGA Figure 5.13. VGA horizontal timing specification DE2-70 User Manual Table 5.11. ADV7123 pin assignments5.8 Using the 24-bit Audio CODEC 5.10 PS/2 Serial Port 5.9 RS-232 Serial Port5.11 Fast Ethernet Network Controller DE2-70 User Manual Figure 5.17. Fast Ethernet schematic5.12 TV Decoder DE2-70 User Manual Figure 5.18. TV Decoder schematic5.13 Implementing a TV Encoder 5.14 Using USB Host and Device http//techtrain.microchip.com/webseminars/documents/IrDABW.pdf 5.15 Using IrDA5.16 Using SDRAM/SRAM/Flash SDRAM1 Figure 5.22. SDRAM schematicDE2-70 User Manual SDRAM0SSRAM 512Kx36 Figure 5.23. SSRAM schematicFigure 5.24. Flash schematic DE2-70 User ManualDRAM0A0 DE2-70 User ManualDRAM0CKE DE2-70 User ManualDE2-70 User Manual Table 5.19. SDRAM pin assignmentsSRAM Burst Address Advance DE2-70 User ManualSRAM Controller Address Status SRAM Processor Address StatusDE2-70 User Manual Table 5.20. SSRAM pin assignmentsDE2-70 User Manual Table 5.21. Flash pin assignmentsBit stream used DE270Default.sof or DE270Default.pof 6.1 DE2-70 Factory ConfigurationInstalling the Demonstrations Demonstration Setup, File Locations, and Instructions6.2 TV Box Demonstration Demonstration Setup, File Locations, and Instructions Figure 6.1. Block diagram of the TV box demonstrationmonitor Bit stream used DE270TV.sof or DE270TV.pof6.3 TV Box Picture in Picture PIP Demonstration PiPposition Bit stream used DE270TVPIP.sof or DE270TVPIP.pofDemonstration Setup, File Locations, and Instructions signalLoad the bit stream into FPGA 6.4 USB Paintbrush Demonstration Setup, File Locations, and Instructions Project directory DE270NIOSHOSTMOUSEVGABit stream used DE270NIOSHOSTMOUSEVGA.sof Nios II Workspace DE270NIOSHOSTMOUSEVGA\Software6.5 USB Device Demonstration Setup, File Locations, and Instructions Project directory DE270NIOSDEVICELED\HWBit stream used DE270NIOSDEVICELED.sof Nios II Workspace DE270NIOSDEVICELED\HW\Software6.6 A Karaoke Machine Demonstration Setup, File Locations, and Instructions Bit stream used DE2-70i2sound.sof or DE2-70i2sound.pofFigure 6.9. Block diagram of the Karaoke Machine demonstration MP3/Any Audio Output Speaker Microphone 6.7 Ethernet Packet Sending/ReceivingClock/Data Frequency Generator Demonstration Setup, File Locations, and Instructions 6.8 SD Card Music Player Figure 6.13. Block diagram of the SD music player demonstration Demonstration Setup, File Locations, and Instructions Project directory DE270SDCardAudioPlayerBit stream used DE270SDCardAudioPlayer.sof Nios II Workspace DE270SDCardAudioPlayer\Software6.9 Music Synthesizer Demonstration Figure 6.17 illustrates the setup for this demonstration Demonstration Setup, File Locations, and InstructionsBit stream used DE270Synthesizer.sof or DE2-70Synthesizer.pof VGALCD/CRTMonitor DE2-70 User ManualLine Out Speaker6.10 Audio Recording and Playing Software Project directory DE270AUDIO\software\projectaudio SOPCDemonstration Setup, File Locations, and Instructions Load the Software Execution File into FPGA. note *1 Chapter AppendixRevision History Copyright Statement