Communication method for implementing multi-process control through single hardware serial port

Abstract

The invention discloses a communication method for implementing multi-process control through a single hardware serial port, which comprises the steps that: as much as 16 virtual serial port channels are provided on the single hardware serial port, a transmitting party transmits an application data packet to a receiving party on a multi-process control protocol layer according to the generation mode of the data packet, the receiving party unpacks and analyzes the data packet on the peer-to-peer multi-process control protocol layer. The method has the advantages that: multi-process control is offered to application by utilizing one essential hardware serial port, thereby saving the pin of hardware chip which increasingly becomes valuable in product design and being favorable for chip minimization; only 4 bytes are used as the control bytes for the data packet, which greatly improves the transmission speed and efficiency of data on the hardware serial port; and the data packet adopts the simple and effective generation mode which only takes up quite less memory and calculation resource, so the communication method is particularly suitable for high-speed data transmission and portable electronic products.

Description

technical field [0001] The invention relates to a communication method for realizing process control between hardware serial ports, in particular to a communication method for realizing multi-process control through a single hardware serial port. Background technique [0002] In the current three-generation wireless communication standard communication protocol (3GPP 27.010 standard), a very popular multiplexer communication protocol between user equipment and terminal equipment is defined, which provides multiple channels for communication between devices on a single hardware serial port. Virtual serial channel to realize multi-process communication. However, the communication method of using this protocol to realize process transmission is too complicated, and the protocol control byte occupies too much data packet space, resulting in low data efficiency and consuming too many computing resources. In practical applications, this protocol can even consume up to 50% to 75% ...

AI Technical Summary

Problems solved by technology

However, the communication method of using this protocol to realize process transmission is too complicated, and the protocol control byte occupies too much data packet space, resulting in low data efficiency and consuming too many computing resources. In practical applications, this protocol can even consume up to 50% to 75% of the computing resources of the central processing unit cannot be used on high-speed serial ports such as USB

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