It mainly includes the following types: The fill-in-the-blank questions are relatively basic, most of which are single-chip microcomputers. I remember there are interrupt-filling questions, and there ...
[i=s]This post was last edited by le062 on 2018-11-5 05:53[/i] The Vllink lite hardware made with GD32F350 is very simple: [list=1] [*]One SPI to implement SWD timing[*]Two SPI master-slave cooperatio...
"Bad Apple exists wherever there is a screen." We have now transplanted Bad Apple onto our Zero Knowledge development board, using SD card storage and OLED display. This is mainly to help everyone get...
[i=s]This post was last edited by zzzy11 on 2022-9-15 15:05[/i]The Starlink project uses phased array technology. How does it focus electromagnetic waves? How does it track low-orbit satellites in rea...
I recently got a few diodes and looked at the datasheets. The datasheets did not include power. What is the power of SMA, SMB, SMC at a normal room temperature of 25 degrees? The supplier's datasheets...
I soldered the PCB yesterday, and at first the voltage couldn't be changed. Today I changed a USB cable and finally I could change the voltage. Here is the effect picture:USB and CH221 in PCBChange th...
SolidRun's equipment uses an integrated V2X chip provided by NXP, implements the RoadLink SAF5400 secure modem, and creates a new system on a new module. With it, engineers can develop new V2I, V2X a...[Details]
An "artistic photo" of the "Shennan" supercomputer. Image source: British "New Scientist" weekly website
According to a report on the website of the British New Scientist magazine on t...[Details]
Introduction: The device is connected to the host computer via RS485 (＄49.9800) bus. As a remote relay output module, it is used to receive computer instructions and execute remote control or automat...[Details]
The application of high-brightness LEDs is becoming more and more widespread. This article collects a variety of LED application circuits for your reference. Many circuits use AC power. Pay attenti...[Details]
1. Introduction
The Chinese character display screen composed of dot matrix LEDs is widely used in public places. For example, the departure time reminder of the station, the stock price display...[Details]
Recently, there was news that OPPO will soon release the OPPO A93 5G mid-range phone in China. Recently, the official pictures and specifications of this phone have appeared on e-commerce websites. ...[Details]
Developed by Alif Semiconductor, the Ensemble and Crescendo product families represent the latest in securely connected, AI-enabled and high-powered MCUs and fusion processors designed to enable al...[Details]
Since there are many types of speakers nowadays, the system needs to flexibly configure the functions and frequency division of the electronic crossover. The commonly used electronic crossovers are...[Details]
1.2 PMOS varactor connection and voltage control characteristics analysis
Figure 2 is a schematic diagram of a PMOS tube connected to a voltage-controlled variable capacitor. Specifically, the ...[Details]
On November 7, 2024, Tailan New Energy and Changan Automobile jointly held a diaphragm-free solid-state lithium battery technology conference in Chongqing. The two parties jointly launched diaphrag...[Details]
Reversing radar is a car safety aid that helps drivers detect obstacles when reversing by using ultrasonic or radar technology. It works by emitting harmless ultrasonic or radar signals and calcula...[Details]
Volumetric flow measurement uses a fixed small volume to repeatedly measure the volume of fluid passing through the flowmeter. Therefore, there must be a space that constitutes a standard volume insid...[Details]
1. Hardware Introduction
The Linux-2.6.32.2 kernel does not provide the ADC driver for S3C2440. The ADC driver is a character device driver. The following is an explanation of the driver imple...[Details]
The need for speed
Today, the performance requirements for electronic systems have exceeded the capabilities of general-purpose DSP processors. Figure 1 shows the difference between the perfor...[Details]
Changes in power management methods in the new version of Linux system device architecture based on linux-2.6.32 1. Power management part of each data structure of the device model The Linux devi...[Details]
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