Manufacturing method of baud rate self-adaptive serial communication repeater
A technology of serial communication and production method, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of manual setting, bus transmission data speed and batch limitation of data, short serial communication transmission distance and other problems , to achieve the effects of easy and control, high stable communication speed, good maintainability and scalability
Inactive Publication Date: 2011-07-20
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 communication distance is solved, the transmission data speed and the batch of data on the bus have certain restrictions, and It is necessary to manually set the communication baud rate of the repeater
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[0016] The specific embodiment of the present invention is described in detail below in conjunction with description accompanying drawing and technical scheme: After the baud rate self-adaptive serial communication repeater is powered on and started, at first carry out initialization, the size of available dual-port RAM3 is set, makes each device all In the enabling 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 complete the self-adaptation of the baud rate by the baud rate adaptive generator 6, the baud rate adaptive generator 6 program state machine is as attached image 3 Shown: After the system is reset, the baud rate adaptive generator 6 enters the clock control start state 101, waiting to receive the first byte, this byte is used as the calibration byte for the baud rate of the serial communication sending and receiving data, the system Select 0x55 as the c...
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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-portRAM 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 gatewhich 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 self-adaptive serial communication repeater, belonging to the field of electronic communication, in particular to a manufacturing method of a baud rate self-adaptive communication repeater. Background technique [0002] The serial communication structure is simple, the hardware overhead is small, it is the most widely used communication method at present. 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 transfer station that extends the communication distance of the serial bus. Its communication efficiency and reliability directly affect the communication capability of the serial bus. The traditional serial bus repeater based on a single microcontroller is difficult to meet the requirements of large amounts of data. Transit requirements, so it is very imp...
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IPC IPC(8): G06F13/40G06F13/42G06F15/167G06F17/50
Inventor邱铁江贺于玉龙
OwnerDALIAN UNIV OF TECH