What is embedded? What is SCM? What is the difference between both and contact? Aimed at the problems between the two small make up an article, hope to understand the basic concepts, as well as the difference between help.


1, the difference from the system composition, single-chip microcomputer by the controller, alu, memory, input and output devices, and embedded in the first step requires a combination of specific applications, considering cost, performance, scalability, and so on various aspects of the development cycle requirements, determine the system after the master device, to join the microprocessor, peripheral hardware, embedded operating systems, applications,

2, the difference from the hardware composition, single-chip computer consists of a piece of integrated circuit chips, concrete containing micro controller circuit, the control input/output interface, and embedded, with the development of electronic technology, now which can be realized with single chip microcomputer, you can also use other programmable electronic devices,

From five aspects to analyze the difference between single-chip microcomputer and embedded

3, the difference from the software composition, general MCU doesn't run directly, because there are no applications, and embedded systems must have control software, the control method can use the hardware circuit, software programs are available, and also

4, from the difference between primary and secondary relations, single-chip microcomputer has been identified as common electronic devices, as an independent subject, and embedded systems on the relationship between physical structure is subordinate relationship, is embedded in the target application system, from the control, control of the target application system operation logic processing, at this time is the dominant,

5, the relationship in difference from the system, the embedded system is a very wide definition of the scope, the single chip microcomputer can be said to be one of his important part, so we can use the single chip microcomputer to realize the embedded system, also can use the other to realize embedded systems, such as mobile phone, on the basic function to join other application processor, enhancements, also belong to the embedded system,

We use single chip microcomputer is used for industrial automation, industrial control, generally is multifunctional, multiple systems cooperate with each other, these functions don't usually use independently, so using single-chip computer need to cooperate with other system, so in a broad sense, microcontroller applications generally belongs to a branch of an embedded system,

CodePudding user response:

The building Lord said is at an early age 51 single chip microcomputer, the 8-bit microcontroller is not so bad, only the bottom few cents of (5) under MAO MCU are so poor;

CodePudding user response:

These two concepts together say

CodePudding user response:

The building Lord, now many of the single chip microcomputer than a PC 80286 performance was tough! STM32F42X chips, for example, bring their own hardware floating-point arithmetic, 80286 are not achieve the function of the ah!

CodePudding user response:

Single chip microcomputer is run bare-metal, embedded is run Linux and Android, this is the biggest difference

CodePudding user response:

In fact, there is no difference between, each other containing
SCM is a kind of embedded,

CodePudding user response:

MCU is MCU, the processor is the MPU, which usually has a memory management unit and CACHE, higher performance,