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Working principle of single chip microcomputer

Source: unknown Editor: admin Time: 16:41, May 14, 2019

Single chip microcomputer is an integrated circuit chip used to control the system or equipment, which is equivalent to a microcomputer system. It includes CPU with data processing ability, static random processor SRAM, flash memory, various IO ports and interrupt system, timer / counter and other functions.  

How is the SCM controlled?  

The single chip microcomputer can be regarded as a micro machine, the programmer input commands to it, it will execute the corresponding operation. The process is as follows: in the general user mode, the MCU first reads the instruction from the flash, the decoding circuit identifies which instruction is, and outputs the corresponding control signal to each component in the MCU, and each component performs the corresponding operation after receiving the control signal .. 

The above process involves the concept of the first to explain: working mode, flash, instructions  

There is a proper metaphor to help you understand the process of MCU executing commands. The process of single-chip microcomputer executing commands is very similar to the process of cooking. The following is a single-chip microcomputer instruction assembly line and cooking process pictures for comparison.  

First of all, the waiter writes the dish name on the task menu, and then puts the task menu on the shelf. The chef goes to this place to get the menu, and then according to the name of the menu, he takes the raw materials (tomato, egg, pepper, etc.), and then makes the dishes (cut vegetables, steamed, fried, boiled, etc.). Finally, the dishes are ready and need to be put on the plate
 

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Shenzhen Jiexun Yilian Technology Co., Ltd. is a high-tech enterprise which develops, produces and sells micro power wireless data communication module and related application products OEM / ODM. The main products are industrial communication data transmission module / data transmission radio station / mesh routing ad hoc network module / ZigBee smart home module / Lora / lorawan communication module / nb-iot communication module / 4G Lora acquisition concentrator gateway, cloud platform system integration development includes wireless security alarm / low power meter reading / Agricultural Internet of things Management System and other related products and solutions.