Serial communication control system and method based on single chip microcomputer

Abstract

The invention provides a serial communication control system and method based on a single chip microcomputer. The serial communication control system comprises a program storage area, a data storage area, a 232 serial interface, an SPI (serial peripheral interface), an eight-bit parallel interface and an interrupt signal line, the program storage area is used for storing control parameters transmitted to a processing module, the data storage area is used for storing application data, the processing module transmits the application data to the single chip microcomputer, the 232 serial interface is used for communication between an upper computer and the single chip microcomputer, the SPI is used for communication lines transmitting the control parameters between the single chip microcomputer and the processing module, the processing module is used for receiving the control parameters transmitted by the single chip microcomputer and transmitting the application data to the single chip microcomputer, the eight-bit parallel interface is used for transmitting application data generated by the processing module, and the interrupt signal line is used for returning data interrupt signals generated by the processing module to the single chip microcomputer. The serial communication control system needs few signal lines and is simple in structure and high in universality, expansibility is improved, and cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of communication control, in particular to a serial communication control system and method for communication between a single chip microcomputer, a computer and a processing module. Background technique [0002] With the development of electronic technology and the increase of demand for electronic systems, various large and small communication control systems emerge in an endless stream, and the data communication control is usually realized by a dedicated controller. Although the use of a dedicated controller can complete the function of communication control, because it is specially designed for a specific application scenario, it will inevitably lead to its application limitations, and the original controller will not be compatible if the application scenario is replaced. At the same time, if a dedicated controller is used, a circuit interface must be reserved for it, which increases the complexity of design and ...

AI Technical Summary

Problems solved by technology

Although the function of communication control can be completed by using a dedicated controller, because it is specially designed for a specific application scenario, it will inevitably lead to its application limitations, and the original controller will not be compatible if the application scenario is replaced.

At the same time, if a dedicated controller is used, a circuit interface must be reserved for it, which increases the complexity of design and structure.

However, special-purpose controllers are often expensive, which is not conducive to controlling development costs, and it does not make much sense to use them in simple system applications.

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