Parallel-processing multiple microcontroller structure and sequential control method therefor

Abstract

The invention provides a multi micro controller and a chronological order control method. The multi micro controller comprises program execution status models of multiple micro controllers, wherein under one same clock tick, different micro controller program execution status models are executed under different chronological orders, which equals to have multiple micro controllers operated in parallel at the same time. The inventive multi micro controller and the chronological order control method have the advantages of avoiding cost adding when adding hardware circuit, and being able to control chronological order accurately when the chronological order is disturbed during program execution.

Description

technical field [0001] The invention relates to a structure and sequence control method of multiple microcontrollers, in particular to a structure and sequence control method of parallel processing multiple microcontrollers. Background technique [0002] Microcontroller / Microprocessor (MCU / MPU for short), also known as Single chip Microcomputer, is a device that can independently perform calculations without other auxiliary circuits, and is mainly responsible for the control of system products. Functional integrated circuit element, a microcontroller is almost a miniature computer, because it contains all the functions provided by a complete computer. [0003] Microcontrollers are widely used, including consumer electronics, industrial control, medical equipment, vehicle control, etc. The peripheral components controlled by different fields are also different, and the handshaking protocol of each peripheral component is also different. The difference is that common handshak...

AI Technical Summary

Problems solved by technology

In this system, since each microcontroller unit has its own program memory, all microcontroller units can operate independently, and each microcontroller can have its own clock. The disadvantage is that the program is complicated and cannot be shared. memory and the overall system cost is quite expensive

[0007] Furthermore, with the advancement of semiconductor technology, memory can support higher bandwidth, thus leading to a super-scaler / hyper-thread (super-scaler / hyper-thread) multi-microcontroller structure, its system structure is as follows image 3 As shown, a plurality of microcontrollers 31, 32 share a program memory 33 and allow multiple microcontrollers to operate together, and add an instruction buffer (instruction buffer) between each microcontroller 31, 32 and the program memory, Since each microcontroller has more instruction buffers, the chance of the microcontroller reading the program memory is reduced, and of course the chance of being interfered is also reduced, and the executed program can operate according to our needs; but obviously, it It can only reduce the probability of occurrence, but it cannot ensure no interference, and those peripheral components that need a fixed time to do a fixed timing still cannot be accurately controlled by software, and the overall hardware cost is quite high

[0008] In view of this, the present invention is aimed at the above-mentioned problems, and proposes a structure and timing control method of multiple microcontrollers processed in parallel, which can reduce manufacturing costs and effectively solve the problem of microcontroller interference

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