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1. Preparation before transplantation Preparation of uboot source code ported by Samsung Ubuntu14.04 restart network card command, ifdown eth0, ifup eth0 Install openssh and log in to Linux remotely ...[Details]

Voice chip selection With the development of technology and the integration of products, voice chips have gradually replaced a variety of voice devices for various applications. The main featu...[Details]

Transformer ratio polarity tester The conventional transformer ratio inspection method is the current method, which is an easy-to-understand and feasible inspection method in principle. However,...[Details]

GPACON             EQU            0x56000000 GPADAT             EQU            0x56000004 GPAUP              EQU            0x56000008                         EXPORT xmain                         A...[Details]

The above figure is the structure diagram of the LPC1114 system tick timer (SysTick). The system tick timer is located in the Cortex-M0 core, that is, whether it is LPC1114 or other Cortex-M0 core m...[Details]

In order for the cold cathode lamp to work safely, efficiently and stably, its power supply and excitation must conform to the characteristics of the lamp. Specifically, the power supply of the la...[Details]

First of all, let's talk about why we need to build a flashing project - there is only one reason. Because you can't give the source code project to others to help you burn the program. - -Then I w...[Details]

OFweek Cup · OFweek 2023 China Robot Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]

I found that some friends who have just started amateur radio communications do not have a clear understanding of the relationship between sideband, difference frequency and sum frequency. It is n...[Details]

The current wave of semiconductor and IC packaging shortages is expected to continue into 2022, but there are also signs that supply may eventually catch up with demand. The same is true for capaci...[Details]

1. Experimental tasks As shown in Figure 4.14.2, use the parallel port P1 of AT89S51 to connect to a 4×4 matrix keyboard, use P1.0-P1.3 as the input line, and use P1.4-P1.7 as the output line; it ...[Details]

1 Overview MPXY8020A is a tire pressure monitoring sensor for automobiles launched by Motorola in 2003. It integrates pressure sensor, temperature sensor and digital interface circuit, and is p...[Details]

   Systems using the latest "portable" processors require a large number of high-current, low-voltage rails, typically 1.8V or less. In addition to the numerous low-voltage rails, many of these appl...[Details]

Since Japan removed South Korea from its white list, South Korean companies have taken countermeasures one after another. Samsung Electronics began to replace some Japanese hydrogen fluoride products...[Details]

On the afternoon of October 29, the Weifang Special Promotion Conference on Green, Low-carbon and High-quality Development was held in Beihai Hall of Weifang Fuhua Hotel. The conference was jointly...[Details]