C2220X223K2GAC7210

The execution process of network card dm9000 (u-boot version: u-boot-1.1.6): There is eth_initialize(gd- bd) in board.c; The implementation of eth_initialize is in eth.c, but there is no initializati...[Details]

　　PM2.5 monitoring is increasingly receiving attention from the government, the public and the media. At present, everyone has a certain understanding of its sources and hazards. As netizens gradually...[Details]

Input capture mode Library function routine location: STM32F10x_StdPeriph_Lib_V3.3.0\Project\STM32F10x_StdPeriph_Examples\TIM\InputCapture In input capture mode, when the corresponding edge on the ...[Details]

According to the identifier codes, the S8 chip in the Apple Watch Series 8, Apple Watch Ultra, and Apple Watch SE 2 has the same CPU as the S6 and S7 chips. The CPU in Apple's S8 SiP carries the sam...[Details]

    In recent years, during the promotion of perimeter intrusion detection devices in prisons, it has been found that immature or unsuitable products are widely sold to prisons under the names of "ne...[Details]

　　An important characteristic of any solar panel is that it can achieve peak power output at a relatively constant operating voltage (V MP ), regardless of illumination levels (see Figure 1). The LT36...[Details]

Adjustable switching power supply circuit composed of L4970A The circuit in the figure uses a -5V auxiliary power supply to expand the continuous adjustment range of low voltage...[Details]

This is a 2 x 3W Stereo Audio Amplifier based on IC Power BA5406. This circuit will give you 3W power in each channel. This circuit is perfect for indoor sound systems. Components List: ...[Details]

　　FTS-300 fiber optic cable tester is an optical tool test instrument that integrates OTDR, fiber optic cable search, red light source, light source, optical power meter and fiber end face detection ...[Details]

       The batteries in our phones will inevitably age over time, but there are still things you can do to extend the life of your battery as much as possible. 　　Apple has given some suggestions on...[Details]

 　　Calibration of the current probe requires a fixture consisting of two coaxial converter halves. When the current probe is assembled on it, a coaxial line is formed: the outer conductor surrounding...[Details]

On August 31, the Guangdong Regulatory Bureau disclosed the acceptance information of the coaching registration and filing of Guangzhou Langguo Electronic Technology Co., Ltd. (hereinafter referred t...[Details]

1. Special Function Register SFIOR         ADTS2 ADTS1 ADTS0 --- ACME PUD PSR2 PSR10 Bit 2——PUD is the pull-up resistor disable bit             When set, the pull-up resistors of the I/O ports wi...[Details]

Details can be found in the FHS document, which can  be downloaded from the website: http://www.pathname.com/fhs/ / ____/bin ____/sbin ____/dev ____/etc ____/lib ____/home ____/root ____/usr ____/va...[Details]

At present, the analysis and design theories based on the S parameters of transistor amplifiers are very mature and can be found in many books and materials. The implementation of these theories is...[Details]