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Audio de2 115

By | 06.10.2020

Remember Me? For the project I'm working on we have a student sprite that can wonder through 5 rooms and is controlled with the Keys. What we're trying to do is make is it so that when the student enters a room the music will change aka a different song playing in each room. Due to the amount of memory each song will take we unfortunately have to use an SD Card and I was wondering if anyone could give us any advice of how to implement this.

Oh, we're also trying to make the music be triggered based of the x and y position of the sprite which will be tricky in itself Any and all advice will be greatly appreciated!

Last edited by yahoush; 5th April at Similar Threads hsmc interface problem altera de 1. Problem with UART. Need to test UART with variable baud rate on altera de2 board 2. Part and Inventory Search. Welcome to EDABoard. Design Resources. New Posts. Noise figure in quadrature path receivers 1. Audio amplifier relation of dB to watts Dear senior assemblers. Help reading schematics - artificial ventilator for someone Which common mode choke has the lowest leakage inductance?

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IMAGE AND VIDEO PROCESSING ON ALTERA DE2-115 USING NIOS II SOFT-CORE PROCESSOR

Measuring Photodetector's Dark Current Noise 3. PIC16F interface with ds RTC running 10 sec slow What the effect of size the patch and ground plan on antenna's performance 0. Hardware development 0. Benefits of using virtual clocks in SDR interfaces 0. Top Posters. Recently Updated Groups.All of the Verilog and Qsys components are written using Quartus The following diagram shows the overall layout and flow of the software.

Figure 44 Software Flowchart. Nearly all extra components on the DE board are used in relation to the camera integration.

The Verilog sets up the initial conditions for the capturing by setting the camera to default values for the capture size and exposure settings and turns it to continuous capture mode. Most of the settings are static but a few can be changed via switches and the push button keys. These features are listed in the following table. Adjust sensor exposure. Global reset. Stops camera capture.

Starts camera capture. Along with adjustments to the camera settings, the Verilog sets up a useful status output.

audio de2 115

The capture count from the camera is output in hex to the 7-segments displays. This is especially useful to show that the system is current functions and to watch how the key presses affect the processor. Besides those connections, the rest of the configurations are handled by Qsys and are generated from there.

These video pieces are the foundation of a large portion of this program. It uses just the I2C components to read in data from the camera for video processing. The buttons are also tied into some special functions such as moving the title bar when the button is pressed. These features are shown in the next section since the Qsys is primarily just creating the hardware connections.

The user can sit back and watch the camera feed be manipulated automatically by the program. The actual manipulation varies based on the length of time that the program has been running. The bulk of the code is dedicated to creating the video image. The main components are the clipper, mixer, control synchronizer, scaler and frame buffers. All of these are built-in features of the Altera IP core programs.Also See for DE User manual - 43 pages.

Page of Go. Table of Contents. Page 4: Chapter 7 Appendix 6. Figure shows a photograph of the DE package. A photograph of the DE board is shown in Figure Figure It depicts the layout of the board and indicates the location of the connectors and key components.

Page 9 Figure The DE board bottom view The DE board has many features that allow users to implement a wide range of designed circuits, from simple circuits to various multimedia projects.

The host computer communicates with the board through a USB connection. The facility can be used to verify the functionality of components on the board or be used as a debug tool while developing RTL code.

Page 18 Figure From the window, directly use the left-right arrows to control the 7-SEG patterns on the DE board which are updated immediately.

Figure Controlling 7-SEG display Figure Controlling the LCD display The ability to set arbitrary values into simple display devices is not needed in typical design activities. Contents of the location can be read by pressing the Read button.

The movement of the mouse and the status of the three buttons will be shown in the graphical and text interface. Page Vga Receive terminal window to verify its operation. Follow the steps below to generate the VGA pattern function Before running the HSMC loopback verification test, follow the instruction noted under the Loopback Installation section and click on Verify. Please note to turn off the DE board before the HSMC loopback adapter is installed to prevent any damage to the board. Figure depicts the IR receiver window when the IR tab is pressed.

When the scan code is received, the information will be displayed on the IR Receiver window represented in hexadecimal. The software part is implemented in C code; Page 29 Figure The block diagram of the DE control panel The procedure for downloading a circuit from a host computer to the DE board is described in the tutorial Quartus II Introduction. Using this connection, the board will be identified by the host computer as an Altera USB Blaster device.

These switches are not debounced, and are assumed for use as level-sensitive data inputs to a circuit. These displays are arranged into two pairs and a group of four, behaving the intent of displaying numbers of various sizes.

The distributing clock signals are connected to the FPGA that are used for clocking the user logic.The controller handles the data transmission to and from the chip. The chip configuration is handled by the separate configuration module.

The configuration module must be instantiated separately when using the audio controller. This document will describe the interface and operation of the audio controller and give an overview of the audio data format required to encode the sound waves. You can download the source code in Verilog for the audio controller here. Ports are used as follows:. The audio input data, if available, will be placed on the data lines on the next clock cycle.

Reads will have no effect unless this signal is high. Level-sensitive, data is written on every clock edge when this signal is high.

Write will have no effect unless this signal is high. The audio controller is capable of a full-duplex audio input and output. The data ports are bit wide by default and are connected to the data buffers. The data itself is a signed integer representing one audio sample.

All the signals are synchronized to the same clock. The audio controller consists of two main parts: the input module and the output module. This section will provide a short overview of each.

The audio input and output modules consist of the shift registers connected to the data buffers. In the case of the audio output, the data received from the user is buffered and then shifted-out to the audio chip at the appropriate rate. The audio chip then feeds this data directly to the DACs. In the case of the audio input, the process is reversed: the data received from the audio chip is shifted-in and placed in the data buffers.

The data comes directly from the ADCs on-board the audio chip. The audio controller uses the raw PCM data streams, both for the input and for the output. The PCM data stream is essentially a sequence of numbers representing the intensity of the signal at a given moment. Each of these numbers is called a sample.You seem to have CSS turned off. Please don't fill out this field. Calibre has the ability to view, convert, edit, and catalog e-books of almost any e-book format.

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Altera DE2-115 FPGA - Unpacking and Demonstration

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Learn More. Additional Project Details Report inappropriate content. Oh no! Some styles failed to load. Thanks for helping keep SourceForge clean. X You seem to have CSS turned off.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again.

If nothing happens, download the GitHub extension for Visual Studio and try again. The board's included line-in and line-out audio jacks will be used in combination with the Wolfson WM IC to convert the audio from analog to digital and back. The modified audio will then be sent back to the Woflson IC to be converted to analog and played through the line-out audio jack.

audio de2 115

Audio is often transmitted as an analog signal. The DE board is equipped with several 3. These are the same kind connectors running the same kinds of analog audio signals you'd find on a laptop or phone. The first step to applying effects to audio is getting the audio to the FPGA. When a source of audio is connected to the Line-in audio jackit's sending an analog signal.

Now, the FPGA can only work with digital signals. This means the signal is represented as a stream of binary numbers. Each of these numbers is called a sample. These samples don't stay on the FPGA for long. The IC then converts these digital samples back to an analog signal and sends the signal to the Line-out audio jack. From there, any standard audio output device such as headphones or speakers can be connected to hear the modified sound.

When the Wolfson IC is powered on, it's not ready to send and receive digital audio samples. It has to be initialized by the FPGA.

In general, are many different protocols that IC's use to talk to each other. These are equivalent to the different spoken lanuages that exist throughout the world. The Wolfson is specified as a slave only devicemeaning it just listens to what it's told to do. This means the FPGA will do most all the talking.

In I 2 C, the data line is shared. One chip will send 8 bits of dataand then will listen for a 1 bit reply from the other chip. This single bit reply is called the ACK bit acknowledge bit and tells the sender that the data was received.

The purpose of the clock line is to tell the listening chip exactly when to listen. The listening chip will only read a bit of data when the clock line goes from low to high.

These registers are akin to very simple "preferences". The FPGA has to write to these registers to control and initialize things on the Wolfson IC such as digital audio format, which parts of the chip to power up, when to start listening and converting analog audio to digital, ect.

According to the data sheet, the Wolfson IC can generate its own clock.You seem to have CSS turned off. Please don't fill out this field. Please provide the ad click URL, if possible:. Help Create Join Login. Operations Management. IT Management.

audio de2 115

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IMAGE AND VIDEO PROCESSING ON ALTERA DE2-115 USING NIOS II SOFT-CORE PROCESSOR

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audio de2 115

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