Manufacturing method of baud rate self-adaptive serial communication repeater

A technology of serial communication and production method, which is applied in special data processing applications, instruments, electrical digital data processing, etc., and can solve the problems of short serial communication transmission distance, bus transmission data speed and batch limit of data, manual setting, etc. , to achieve good maintainability and scalability, high communication speed and easy communication

Inactive Publication Date: 2009-10-07
DALIAN UNIV OF TECH
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the transmission distance of serial communication is short, after adopting the traditional repeater, although the problem of ...

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  • Manufacturing method of baud rate self-adaptive serial communication repeater
  • Manufacturing method of baud rate self-adaptive serial communication repeater
  • Manufacturing method of baud rate self-adaptive serial communication repeater

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Embodiment Construction

[0016] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings and technical solutions of the description: after the baud rate adaptive serial communication repeater is powered on, it is firstly initialized, and the size of the available dual-port RAM3 is set, so that each device is In the enabled state, the first baud rate adaptive serial communication device I and the second baud rate adaptive serial communication device II are in a monitoring state. Then the baud rate adaptive generator 6 completes the baud rate adaptation, and the baud rate adaptive generator 6 program state machine is attached image 3 Shown: After the system is reset, the baud rate adaptive generator 6 enters the clock control start state 101 and waits to receive the first byte, which is used as the calibration byte for the baud rate of the serial communication sending and receiving data. Select 0x55 as the calibration byte, a squa...

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Abstract

The invention provides a manufacturing method of a baud rate self-adaptive serial communication repeater, belonging to the field of electronic communication, and particularly relating to the manufacturing method of the baud rate self-adaptive serial communication repeater. The method adopts a data processing mode of connecting a first microcontroller and a second microcontroller with a double-port RAM so as to connect the first microcontroller with a first baud rate self-adaptive serial communication device through a signal line, and connect the second microcontroller with a second baud rate self-adaptive serial communication device through the signal line. The interior modules of the first baud rate self-adaptive serial communication device and the second baud rate adaptive serial communication device comprises a baud rate self-adaptive generator, a signal converter, a parallel-serial data receiving shifter, a serial-parallel data sending shifter, logic and gate and logic and nor gate which are all manufactured by adopting programming devices. The repeater has the characteristics of novel structure, stable communication, high speed, automatic recognition of data speed on a bus, double-port RAM as a shared memory, flexible and convenient interface and easy control; in addition, the repeater has good maintainability and expansibility and low cost.

Description

technical field [0001] The invention relates to a manufacturing method of a baud rate adaptive serial communication repeater, belonging to the field of electronic communication, in particular to a manufacturing method of a baud rate adaptive communication repeater. Background technique [0002] Serial communication has a simple structure and low hardware overhead, and is currently the most widely used communication method. With the expansion of the serial bus network area, it is difficult to directly transmit data between two nodes to meet the requirements of long-distance communication. The repeater is a relay station that extends the communication distance of the serial bus. Its communication efficiency and reliability of communication directly affect the communication capability of the serial bus. The traditional serial bus repeater based on a single microcontroller is difficult to meet the needs of a large amount of data. Therefore, it is very important to design a repe...

Claims

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Application Information

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IPC IPC(8): G06F13/40G06F13/42G06F15/167G06F17/50
Inventor 邱铁江贺于玉龙
Owner DALIAN UNIV OF TECH
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