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The current signal output by instruments and sensors is mostly 4-20mA. Why is it 4-20mA? Because 4-20mA sensors are mostly two-wire systems, that is, the signal line and the power line share two wire...[Details]
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Many medical applications require portable, self-powered devices that do not require external power and data cables. The most obvious example is a portable data logger that patients carry with the...[Details]
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When learning about various hardware, the serial port is an essential and first peripheral to learn, because with the serial port, you can interact with the hardware in a simple way, and it is al...[Details]
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Introduction
When designing a PC-based data acquisition system, engineers all believe that in order to obtain better performance, they need to use the PCI bus. In fact, this is not the case. With th...[Details]
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1. First we need to calibrate , turn on the power, turn on the instrument and prepare for calibration . 2. Connect the two wires. 3 Adjust to get square wave and triangle wave 4Adjust the frequenc...[Details]
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On June 15, China Micro's first 8-inch VHF decoupled reactive ion (CCP) etching equipment, Primo AD-RIE 200, was successfully delivered to the customer's production line. It is reported that Primo A...[Details]
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1. Configure the memory controller registers When our S3C2440 accesses SDRAM, it first sends out an address, and then the memory controller first sends out a chip select signal nGCS6 according to the...[Details]
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Abstract: In order to solve the problem that there are only national testing standards and no standardized testing instruments for testing geotextile permeability, an intelligent geotextile perm...[Details]
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Preview of Highlights of 2022 Hangzhou·Cloud Conference 1. Overview of the conference About Yunqi Conference: In 2009, a conference called "China Local Website Development Forum" was held ...[Details]
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Recently, the Nikkei Asian Review reported that OPPO is independently developing high-end mobile chips for its high-end mobile phones in order to gain control over core components and reduce its depe...[Details]
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The selection of a single-chip microcomputer is an important and troublesome matter. If the single-chip microcomputer model is selected appropriately, the single-chip microcomputer application syst...[Details]
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The hottest industry at present is new energy vehicles, and one of the most important features of new energy vehicles is intelligence, automatic driving, and intelligent perception, which can be sa...[Details]
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I have recently learned about ARM register addressing modes and ARM instructions, and now I summarize them as follows:
1. ARM assembly instructions that affect the CPSR status register
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The dotted box shown in Figure 1 is an interface circuit. By analyzing the truth table, its sending and receiving processes are as follows:
when DI=0 at the sending end, DE/RE=1 sends a 0...[Details]
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CNC machine tools, the full name of which is Computer Numerical Control Machine Tool, are automated machine tools that are controlled by computers. CNC machine tools are widely used in mechanical p...[Details]
Test/Measurement
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