Dear experts, I have been learning SDRAM reading and writing recently. I started with the FPGA reading and writing SDRAM program of Teacher Quanyou, and combined with the post written by Xiaomo, I hav...
[i=s]This post was last edited by hhxianzi on 2014-10-12 20:42[/i] I haven't been very busy recently, and when I was sorting out my things, I found that some of the samples given by TI had not been te...
[i=s]This post was last edited by wudianjun2001 on 2019-4-27 17:22[/i] [align=left] I received the board yesterday. When I got up this morning, I took out the soldering iron that I hadn't used for a l...
;5. To reduce PLL lock time, adjust the LOCKTIME register. ;To reduce PLL lock time, adjust the LOCKTIME register. ldr r0,=LOCKTIME ldr r1,=0xffffff;The default value of reset str r1,[r0] The datashee...
u-boot_smdkv210 Analysis 1: Source code directory structure 1.board This directory stores files related to existing development boards. Each development board has a subdirectory, which only stores c f...
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
With the continuous advancement of various technologies in the field of measurement and control, the baseband subsystem of general measurement and control equipment has entered the fourth generation o...[Details]
Abstract: Based on the ZigBee parking lot SMS car search system, the location of the vehicle in the parking lot is sent to the owner through SMS, which is convenient for the owner to quickly find ...[Details]
Nowadays, more and more people have digital cameras. The convenience and speed of digital cameras have gradually replaced film cameras and become the main tool for people's daily photography. The n...[Details]
The 8051 microcontroller is the most common microcontroller we have. I have been using 8051 for a long time and have also taught microcontroller courses for a period of time. Here I would like to s...[Details]