Microcontroller operation method and terminal

Abstract

The invention discloses a microcontroller operation method and terminal. The method comprises the following steps: allocating corresponding independent storage spaces for a kernel program, an application program and an equipment driving program of a microcontroller according to a space allocation request, so that the situation that due to the fact that no memory management unit exists, all the programs run in the same or overlapped space can be avoided; and using the kernel program to obtain creation information of the application program and the equipment driving program, and creating and starting the application program and the equipment driving program, so that data of the application program and the equipment driving program in the storage spaces are directly called through the kernel program, and a file system does not need to be introduced to manage memory. Therefore, the file size of the microcontroller is greatly reduced, the storage space of the kernel program, the storage space of the application program and the storage space of the equipment driving program can be independent of one another, and the application rate of the microcontroller is increased.

Description

technical field [0001] The present invention relates to the technical field of controllers, in particular to a microcontroller operating method and a terminal. Background technique [0002] With the increasing living standards, people have more and more demands on the functions of electronic products, which makes the program design more and more complicated. If the program structure is not well designed, the program will be complicated, which is not conducive to the development and maintenance of product programs. And transplantation, so large-scale operating systems for high-end controllers, such as windows, linux, android, and ios, have emerged as the times require, all of which can realize the independence of operating system programs, device drivers, and application programs, making the program structure clear. [0003] However, the ROM (Read-Only Memory, read-only memory) and RAM (Random Access Memory, random access memory) space required to run a large-scale operating ...

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Problems solved by technology

[0003] However, the ROM (Read-Only Memory, read-only memory) and RAM (Random Access Memory, random access memory) space required to run a large-scale operating system are very large, and the controller itself needs to have an MMU (Memory Management Unit, memory management unit) function to realize the conversion between virtual addresses and physical addresses, and prevent applications from running in the same or overlapping space. Due to the limitations of the above conditions, the program structure of large operating systems is not suitable for microcontrollers

[0004] Therefore, small real-time operating systems tailored for microcontrollers have appeared, such as free-rtos, rt-thread, ucos, uclinux, etc., but currently in the application field of microcontrollers, in addition to uclinux, operating system programs can be implemented. , device drivers, and application independence, others do not support this method

Moreover, although uclinux can implement this method, it needs the support of the file system, so that the minimum consumed ROM space needs to be hundreds of KB, which cannot meet the requirements of many microcontrollers.

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