Principle of CAN bus, 8 characteristics of CAN bus

1、 What is can bus Can bus is an industrial control communication system different from serial bus. It is the upgrade service of Bosch Company in Germany to provide automotive electronic products, so it is more used for automotive control. Why is it so suitable for the automobile industry? There are several reasons 1. The […]

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Analysis of I2C bus protocol

Recently, I’ve been busy with my work. I haven’t found time to write articles to share with you. I’ve made some time to settle down these two days. Look at the title, you already know, is to summarize the I2C bus, I believe you have more or less contact with the I2C bus, this article […]

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The development course of DP interface, the advantages of DP interface

With several major revolutions of computer technology, computers have entered most families. With the increase of people’s use times, people have more and more understanding of computer configuration information. The image quality is the pursuit of most people, so the importance of graphics card is unknown. Of course, in addition to graphics card support, the […]

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Functions and common faults of FlexRay bus system

1. Functions of FlexRay bus system (1) Wake up If the FlexRay bus is in sleep mode, the system will first change the FlexRay bus into standby mode through the wake-up process. The FlexRay bus cannot actively communicate even if all the users of terminal 3 are activated. (2) Start up phase Wait for the […]

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What are the common interfaces of laptop

The various interfaces of notebook computers are really a headache. One is that there are many kinds of interfaces, one is that new and old interface standards coexist, the other is that many interfaces look similar and are not easy to distinguish, which brings a big problem for the purchase of notebook computers. Next, let’s […]

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Analysis of RS-485 MODBUS serial communication scheme based on Arduino Uno

In this paper, Arduino is used as MODBUS master to communicate with MODBUS slave. In this paper, the computer installed with MODBUS slave software is used as MODBUS slave station. So, let’s first briefly introduce RS-485 and MODBUS. RS-485 serial communication RS-485 is an asynchronous serial communication protocol without clock. It uses a technique called […]

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Pin definition of VGA interface

VGA terminal (video graphics array (VGA) connector), (other name RGB terminal, d-sub15, or minid15) is a three row 15 pin de-15. VGA terminals are usually used in computer graphics cards, monitors and other devices. It is used to send analog signals. VGA interface is also called D-sub interface. A computer display standard using analog signals […]

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Definition and pin description of LPT interface

At present, the LPT interface provided on the mainstream PC motherboard adopts the A-type interface db-25 in IEEE1284 standard, as shown in Figure 4-2. The definition of LPT interface is shown in Figure 4-3. The definition of each pin is shown in table 4-3. Table 4-3 description of LPT interface pins (db-25) (Continued) In lab […]

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Which is better between type-C interface and micro USB interface

I still remember that before 2010, there was a big gap in the USB data cable models of various mobile phone brands, so the data cable between mobile phone manufacturers was not universal. Until 2014 and 2015, most Android phones used the same data interface, which also made it more convenient to cross use data […]

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