1. SD card hardware schematic diagramSD cards use a 9-pin interface for communication, including 3 power lines, 1 clock line, 1 command line, and 4 data lines, as follows:CLK : Clock line, generated b...
[size=4][color=#000000][backcolor=white]This example uses a web page to control a single-chip microcomputer, realizing the communication between software and hardware. [/backcolor][/color][/size] [siz...
[size=14px]The interface I want to display is as shown above. First, a large form is displayed. Click the query button, and a small form pops up. Now the large form is displayed. Click the query butto...
[color=#000]Call the elf format lib library in DSP[/color] [backcolor=white][color=#000000]Note: the lib library must be in elf format. CCS5.2 can be used to compile the elf format lib library. For de...
[size=6][font=微软雅黑, "]Abstract: [/font][/size][p=30, 2, left][font=微软雅黑, "][size=14px]This current signal detection device can amplify the signal generated by the arbitrary waveform signal generator u...
First of all, I would like to thank Qinheng Electronics and EEWORLD for providing this review opportunity!1. UnboxingThe picture below is the CH549EVT-L development board evaluated in this review, whi...
When State Grid Shandong Electric Power Company listed "Research on the top-level design and demonstration project construction of ubiquitous power Internet of Things" as a major topic in 2019, the...[Details]
In this section we will explain in detail how to debug applications using our own system calls. 1. Steps 1. Modify the executable file of the application and replace the code at a certain location wi...[Details]
1 thumb instruction set overview To be compatible with application systems with a data bus width of 16 bits, the ARM architecture supports not only the highly efficient 32-bit ARM instruction set, bu...[Details]
According to the latest survey by EnergyTrend, a new energy research center of TrendForce, due to the record high price of cobalt metal in the first quarter of 2018, the price of lithium battery ce...[Details]
Issues such as electronic waste and easily obsolete laptop all-in-ones have gradually attracted the attention and concerns of many consumers, who hope to have a greener and more environmentally frie...[Details]
1. Common options of gcc and arm-linux-gcc Common selection -v View the version of the gcc compiler and display the detailed process of gcc execution -o Place the output into specifies the output...[Details]
In audio processing, the equalizer can change the frequency response characteristics of the audio signal, thereby compensating for the defects of the signal during transmission or achieving a speci...[Details]
The existing inverters have square wave output and sine wave output. The square wave output inverter has high efficiency, but for appliances designed for sine wave power supply, it is always unsafe t...[Details]
On October 18, at the 2024 Chery Global Innovation Conference held today, Chery officially announced the Kunpeng battery brand, including three categories:
Square lithium iron phosphate ...[Details]
According to Jiwei.com news, on September 20, at the 2019 World Manufacturing Conference, the "2019 World Manufacturing Conference Innovation Product Gold Award" and the "2019 World Manufacturing Con...[Details]
The automobile flow control valve is an actuator, which is used to limit the maximum flow of the steering oil pump. The flow control valve is usually inside the oil pump. The flow of the steering oil...[Details]
When using the PIC microcontroller to communicate with Dallas' iButtON, a subroutine was written to generate and check CRC.
#include
;-------------------------------
cblock 0x20
...[Details]
Recently, when communicating with a classmate who works in a state-owned automobile enterprise, I could directly feel his anxiety in two aspects. The current anxiety is that due to the impact of th...[Details]
Yan'an High-tech Zone Investment Promotion Team went to Chengdu and Wenzhou to conduct investment promotion inspection activities. From October 14th to 19th, Qin Li, member of the Party Working Commit...[Details]
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