Search results
Results from the WOW.Com Content Network
Introduction Does the world need yet another Verilog implementation of the Pulse Width Modulator? There are dozens of examples on the web with various degrees of complexity. In this post we will explore a moderately complex example. More importantly we will explore some of the design decisions that accompany the construction of Verilog modules. This includes parameterization of the PWM width ...
The included test bench was created from the “generate test bench template” command in the “HDL Diagram” window. Inspect the “LSFR_Plus_tf.v” file by reading the Verilog comments for understanding. Two files are created and opened for writing; the output data for “g_noise_out” and “u_noise_out” are written to these opened files.
Logic Home Code Downloads VGA Controller VGA Controller VHDL: vga_controller.vhd (5.3 KB) Supporting Example Material Example hardware test image generator: hw_image_generator.vhd (2.5 KB) Archived complete Quartus II project using the DE2-115 development board: vga_with_hw_test_image_v1_1.qar (27.1 KB) Note: If you are unfamiliar with Quartus II archives: you can open the archive file just ...
The included test bench was created from the “generate test bench template” command in the “HDL Diagram” window. Inspect the “noise_gen_tb.vhd” file by reading the VHDL comments for understanding. Two files are created and opened for writing; the output data for “g_noise_out” and “u_noise_out” are written to these opened files.
Block diagram of a synchronizer. A block diagram representation of the Verilog implementation of a synchronizer is included as Figure 1. This is a classic design where the asynchronous signal flows through the registers. Each register is clocked by the master clock for the new domain.
Sketch a diagram showing the quadrature moon in relationship to the earth and the sun’s rays. Describe the operation of a retroreflective sensor. Contrast and compare the operation of an inductive proximity sensor with a capacitive proximity sensor. Be sure to focus on what materials may be sensed by each device.
A VCXO (Voltage Controlled Crystal Oscillator) is a crystal oscillator whose frequency is determined by a crystal, but which can be adjusted or tuned by an external control voltage applied to the input. This type of XO (crystal oscillator) is commonly used in IC Clock generators. Below is a diagram of a typical VCXO CLK generator. A TCXO (Temperature-Compensated Crystal Oscillator) is a high ...
The most common setup to control the current through the windings is to use what’s called an H-bridge. It is a set of four transistors that can pull each wire high or low. You can also use MOSFETs in place of transistors, but the wiring will be a little different. This diagram shows how you can send current either direction through the H-bridge.
Figure 4 depicts the timing diagram of an example reception. A receive transaction is initiated by the UART’s correspondent via a logic low start bit at the rx input port. Once the UART detects that the rx input line has been low for half of a baud period, it recognizes the start bit and asserts the rx_busy signal to notify the user logic ...
As mentioned before, this will be a series of posts for tips using LTSpice. This post will be covering the basics of making usable sub-circuits and hierarchical blocks based on existing library components. I will be putting together an idealized version of an Op-Amp from Analog Devices called the OP275GPZ (Digi-Key part number OP275GPZ-ND) which is an Audio Amplifier that I am using in a ...