DisplayLink (formerly Newnham Research) is a semiconductor and software technology company. DisplayLink USB graphics technology is designed to connect computers. The VGC software runs on a Windows, macOS, or Linux host PC and takes information from the graphics adapter and compresses the changes to. The MAC core may either be internal or external to the FPGA. To the embedded processor, which manages the camera configuration in software. Video from a 25 frame per second PAL camera on a 60 Hz non-interlaced VGA display.

1. Fpga Vga Tutorial

I think your monitor is syncing to your output and simply displaying the video full screen, much as your TV might with an auxiliary input. I worked out your H and V rates in terms of your reported 27 MHz ( 37 ns) and see if I could find a 1280 x 1024 LCD monitor that would accept them. Your horizontal counter is counter2 which counts from 0 to numberpixelsMAXH - 1(799), and your vertical counter is counter3 which counts from 0 to numberpixelsMAXV - 1 (524).

That gives you a horizontal rate of 800 x 37 ns = 29.600 us and a vertical rate of 15.54 ms. 33.8 KHz H, V 64 Hz. Without knowing the specific monitor you're using I looked around for any spec for one and found an AMOLED display spec that defines the sync rate range. On page 14 there's a table showing the H and V ranges: It shows that this particular LCD panel could display your frame rate. How the pixel clock for it would be recovered from sync signals is dependent on a monitor build using this particular display.

All versions of the board appear to use the same ADV7123 to convert your SVGA signal to analog transmitted across a 15 pin VGA connector. I think it highly likely your SXGA rate monitor capable of displaying SVGA. It looks like an Acer 17 inch V173L will sync to it for instance having 3 VGA modes (60 Hz, 72 Hz, and 75 Hz) and a Mac mode for 640 x 480 (66 Hz). The ability to synchronize to multiple scan rates is very common in monitors these days.

My six year old Dell 2208WP is telling me I'm inputting a DVI-D signal of 1680x1050 at 60 Hz. I can tell my Mac to switch resolution and will faithfully follow, adhering to presets conveyed by the DVI interface, in this case limited to 1024x640 (which resized all my open windows, flattening them). Depending on your monitor you should get multi-syncing across a wider range with an analog input (which the DE1 provides).

The mechanism that makes it work for an analog video input is the pixel clock to the LCD panel is related to the un-blanked portion of a horizontal line, delivering a number of pixel clocks during that interval that matches the panel resolution, re-converting analog video to digital at a rate that fills all (or nearly all) the screen pixels.

Elbert V2 is an easy to use FPGA Development board featuring Xilinx Spartan-3A FPGA. Elbert V2 is specially designed for experimenting and learning system design with FPGAs. This development board features Xilinx XC3S50A TQG144 FPGA. The USB 2.0 interface provides fast and easy configuration download to the on-board SPI flash. You don’t need a programmer or special downloader cable to download the bit stream to the board.

This module uses +5V power supply to function properly. By default the board is configured to use +5V supply from USB. So an external +5V power is not required unless USB port is unable to supply enough current.

In most cases USB ports are capable of providing enough current for the module. Current requirement for this board largely depends on your application.

Please consult FPGA datasheet for more details on power requirements. If for any reason, an external 5V power supply needs to be used for the module, the Power select jumper should be configured properly before connecting the power supply. Please refer to the marking on the board for more details. This board is equipped with 39 user IO pins that can be used for various custom applications. Pin assignments on the connectors are available in the tables below. HEADER P1 Header Pin No. Pin description Spartan-3A (XC3S50A-TQG144)Pin No.

1 IOL12P3 31 2 IOL12N3 32 3 IOL11P3 28 4 IOL11N3 30 5 IOL10P3 27 6 IOL10N3 29 7 IOL09P3 24 8 IOL09N3 25 9 GND NA 10 GND NA 11 VCCAUX NA 12 VCCAUX NA HEADER P6 Header Pin No. Pin description Spartan-3A (XC3S50A-TQG144)Pin No. 1 IOL08P3/TRDY2/LHCLK6 19 2 IOL08N3/LHCLK7 21 3 IOL07P3/LHCLK4 18 4 IOL07N3/LHCLK5 20 5 IOL06P3/LHCLK2 15 6 IOL06N3/IRDY2/LHCLK3 16 7 IOL05P3/LHCLK0 12 8 IOL05N3/LHCLK1 13 9 GND NA 10 GND NA 11 VCCAUX NA 12 VCCAUX NA HEADER P2 Header Pin No. Pin description Spartan-3A (XC3S50A-TQG144)Pin No.

1 IOL04P3 10 2 IOL04N3/VREF3 11 3 IOL03P3 7 4 IOL03N3 8 5 IOL02P3 3 6 IOL02N3 5 7 IOL01P3 4 8 IOL01N3 6 9 GND NA 10 GND NA 11 VCCAUX NA 12 VCCAUX NA HEADER P4 Header Pin No. Pin description Spartan-3A (XC3S50A-TQG144)Pin No. 1 IOL12P0/VREF0 141 2 IOL12N0/PUDCB 143 3 IOL11P0 138 4 IOL11N0 139 5 IOL10P0 134 6 IOL10N0 135 7 IOL09P0/GCLK10 130 8 IOL09N0/GCLK11 132 9 GND NA 10 GND NA 11 VCCAUX NA 12 VCCAUX NA HEADER P5 Header Pin No. Pin description Spartan-3A (XC3S50A-TQG144)Pin No. 1 IOL07P0/GCLK6 125 2 IP0/VREF0 123 3 IOL07N0/GCLK7 127 4 IOL06N0/GCLK5 126 5 IOL08N0/GCLK9 131 6 IOL07P1/IRDY1/RHCLK6 91 7 IO0 142 8 IP0 140 9 GND NA 10 VCCAUX NA. This product requires a driver to be installed for proper functioning when used with Windows.

The driver package can be downloaded from the product page. To install the driver, unzip the contents of the downloaded driver package to a folder. Attach USB cable to the PC and when asked by Windows device installation wizard, point to the folder where driver files are present.

When driver installation is complete, the module should appear in Windows Device Manager as a serial port (see the picture on the right). Note down the name of the serial port (COM1, COM2 etc.). This information is required while programming the module with configuration tool.

To use this product with Linux, USB CDC driver needs to be compiled in with the kernel. Fortunately, most Linux distributions (Ubuntu, Redhat, Debian etc.) has this driver pre-installed. The chances of you requiring to rebuild the kernel to include the USB CDC driver is very slim. When connected to a Linux machine, this product should appear as a serial port in the /dev directory. Usually the name of the device will be “ttyACMx” or similar. The name may be different depending on the Linux distribution you have. HDL design needs to be converted to bit stream before it can be programmed to FPGA.

Elbert V2 at this time accepts only binary (.bin) bit stream created by XILINX ISE (Once the HDL is synthesized, it is easy to create a binary bit stream out of it. Please follow the Steps below to generate binary bit stream from your design using ISE Web Pack. Step 1: Right click on the “Generate Programming File” option in “Processes” window. Step 2: Select “Process Properties” from the pop up menu. In the dialog box, check “Create Binary Configuration File” Check box and click “Apply”.

Fpga Vga Tutorial

Step 3: Click “OK” to close the dialog box. Right click on “Generate Programming File” option again and select “Run”. Now you will be able to find a.bin file in the project directory and that file can be used for Elbert V2 configuration. Elbert V2 can be powered directly from USB port so make sure that you are using a USB port that can power the board properly. It is recommended to connect the board directly to the PC instead using a hub.

It is practically very difficult to estimate the power consumption of the board, as it depends heavily on your design and the clock used. XILINX provides tools to estimate the power consumption. In any case if power from USB is not enough for your application, an external supply can be applied to the board. Elbert V2 requires two different voltages, a 3.3V and a 1.2V supply. On-board regulators derive these voltages from the USB/Ext power supply. Elbert V2 has an on-board micro-controller which facilitates easy reprogramming of on-board SPI flash through USB interface. The micro-controller receives bit stream from the host application and program it in to the SPI Flash and lets the FPGA boot from the flash.

The Elbert V2 configuration application can be downloaded from for free. When Elbert V2 is connected to PC, it shows up as a COM port in Device Manager. Run configuration application, select proper COM Port before downloading bit stream. Click on “Open File” to select the bit stream file (.bin) and press “Program” button to download the bit stream. Wait till the download process is finished. Once the download process is over, the configuration controller will try to boot the FPGA from the SPI Flash automatically. Follow the below steps.

Step 1: Open Elbert V2 Configuration Tool. Select the port no.(Refer “Driver installation” for more information on finding port no.) Click Open file and select the.bin file. Step 2: Click on “Program” button. Wait till “Done” appears on the screen.

Elbert V2 Spartan6 module features an on-board JTAG connector which facilitates easy reprogramming of SRAM and on-board SPI flash through JTAG programmer like “XILINX Platform-cable usb”. Programming Elbert V2 using JTAG requires “XILINX ISE iMPACT” software which is bundled with XILINX ISE Design Suite. To program the SPI flash we need a “.mcs” file needs to be generated from the “.bit” file. Steps for generating “.mcs” file is discussed below. Programming FPGA SRAM does not require a mcs file to be generated. Generating “.mcs” file for Elbert V2 Step 1: Open ISE iMPACT. Click on “Create PROM file(PROM file formatter)”.In the dialog box, select “Configure Single FPGA” in storage device type.

Then click on the green arrow at the right side. Step 2: Select 16M in Storage Device (bits) list. Now click on “Add Storage Device”, then the green arrow at the right side. Step 3: Set an output file name and an output file location (the “.mcs” file will be generated at this location which will be required later for programming the FPGA), then click OK twice, then select the “.bit” file we already generated then click Open and click NO when it prompts to add another device file. Step 4: Double click on “Generate File”.

“Generate Succeeded” will be displayed as shown in fig below if the mcs file is generated successfully. Step 1: Open ISE iMPACT. Click on “Boundary Scan” in the iMPACT flows window in the left top corner.

Then right click on the window panel in the right side. Select “Initialize Chain”. Step 2: If the device is detected properly you will get a pop up window as shown below, Click OK. Then right click on the SPI/BPI (next to the black arrow in the below fig.), select Add SPI/BPI Flash. Step 3: Select the “.mcs” file we already created and click OK. Now choose “M25P16” in the dialogue box appeared, then click OK.

Step 4: Click on “Flash”, Double Click on Program, select OK. If the programming is successful, a confirmation message will be displayed.