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98 Threads found on edaboard.com: Vga Signal
Hey all, I'll try to make it as short as I can. I've got vga signal generation working on FPGA and I'm playing with a CRT monitor with different resolutions. Now that I've learned how to generate different refresh rates and resolutions, I need to learn how to generate interlaced vga signal. What I need help with is expl
Hello guys, I am facing the weirdest thing I could have expected in my game on the 640x480 vga. I am using Spartan-3 board which displays a game on the 640x480 screen monitor via vga port. I am using the following horizontal and vertical scan line configuration as per the User Guide of the Manufacturer (XILINX). scan line: back porch -->
I have generated a vga signal, and succeeded to draw a rectangle. I have also code for ROM designed using VHDL, and initialized with a file that has patterns. I'm beginner in VHDL and FPGA. I would like to read the contents of the ROM and use the vga generator to display the contents. here are the codes. LIBRARY ieee; USE ieee.std_log
The monitor which I have accept the signal 1280 x 1024 @ 75 Hz which need pixel clock 135 MHz. Is it possible to drive the vga signal for the monitor mentioned above from the FPGA at slow rate like 30 frames per second ? In this case what will be the pixel clock for 30 frame per second ?
I have generated vga signal, both data and timing (RGB and v_sync, h_sync) at the rate 60 Hz from FPGA. The frame size consist of 640 x 480 pixel. I have tested the signals v_sync, h_sync by connecting them to LEDs on board, which works fine but there is no output on the screen just screen turns black. I am not sure about the frame rate (...)
For projects, some examples could be: • Power Systems - eg inverters, battery chargers • signal Processing - eg communications, audio, filters • Graphics - connect to a video output (vga, NTSC, PAL, SPI display, etc) • Computing - build a computer with a custom kernel/scheduler • Game - make a small game utilizing
Hello All, I want to generate vga signal with microcontroller. But I have hard time finding solution online how to generate them in software. For e.g. Usually all online vga signal generation just explains timing requirement for HSYNC and VSYNC along with back and front porch timing with for some fixed values like (...)
What you need is called autoranging. Some digital multimeters has it. After level check they automatically select proper attenuation to adjust signal to A/D range. Combination of attenuators and amplifiers (vga) is usual.
i have a one notebook lcd (lp150x1) and i trying to conect this lcd to my vga port in my pc i need help for first step i didnt ever work in this way. i attached lcd datasheat. thanks. 108104
I want to display image on monitor through vga port. but spartan 3E starter fpga kit has only 3 pins for colors. so how to display image using vga. and which type of image format is compatible with vga of spartan 3 E starter kit?
Hey guys, I'm using the DE2_TV.v demonstration provided with the system as a basis for a project. From what I understand it takes the BT656 NTSC signal from input video device (720x486 resolution I believe) It then converts to RGB and sends through vga at 640x480 by downsizing the horizontal resolution (skipping every 9th or 10th pixel). I'm
Is this system possible?? cable tv from co-axial cable is plugged to external TV-tuner that converts analogue signal to digital and o/p digital video from its vga port is connected to the cctv ip router and then watching live TV on android devices via the broadcasted ip. i would like to do it for my final year project.. :idea:
In my application I've got the vga followed by 12-bit ADC (differential signal). System works with IF signal which is undersample in ADC. Should I include any lowpass filter between vga and ADC? (vga and ADC bandwith is 10x more then my signal frequency). I ask because in analog devices adcs (...)
Hi everyone, Here are the main and resumed questions: - can SDR SDRAM run at any frequency? - if I was supposed to assert a signal on clock N, but I assert on clock N+1, will the SDR SDRAM be damaged? Any other suggestions on how to implement videoram are welcome! :D Here is the full context: I am trying to create a vga controller +
Hi; There ara many different timing standarts, vesa document could be received via some payment as i know, so cannot be found on web. On the other hand any monitor doesn't need to support all resolutions. Normally there is an eeprom placed on monitor (it can be read by i2c over the vga connector pin12 and 15). It is called edid or ddc. Any graphics
Hi, What do you think about software generating vga signal under embedded linux to drive external computer display using Atmel ARM9 microcontroller AT91SAM9260 using triple channel ADC like the analog devices one ADV7123. Have someone tried this idea ? Hope that all the people together we try to develop and discuss further this subj
You have posted the standard vga connector and pinout. Are you sure that's what the CRT monitor has for a connection? If so, then it should also work with the LCD monitor.
83371 as the above picture shows, a photodiode receives the IR photo current, and through R1, generating a signal voltage, then, through vga-BPF-notch-amp-comp-integrator... among them, bpf is gm-c structure with center frequency f0=20khz, Q=9, notch filter is Twin-T structure, with center frequency f0=50khz, amp is an inve
Hi, Please look at this link: :-)
You can use a vga (Variable Controlled Amplifier) controlled by an AGC circuit (Automatic Gain Control). If your sync level can be lower than -15dBm, you can use a variable attenuator controlled by an AGC circuit.