Modular communication control system

A technology of communication control and modularization, applied in the field of control system, can solve the problem of low access efficiency of host-external equipment, achieve the effect of improving design efficiency, improving work efficiency, and simple external interface

Inactive Publication Date: 2009-05-20
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] Purpose of the invention: The technical problem to be solved by the present invention is to provide an efficient modular communication control system for the disadvantage of low access efficiency of the host computer in the prior art

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Embodiment Construction

[0018] The invention provides a modular communication control system arranged between a host computer and an external device, the system includes a local bus, a dual-port memory, a soft-core processor, a sub-bus, and four serial channel circuits; the dual-port The memory performs two-way communication with the host through the local bus; the soft-core processor reads the information of the dual-port memory through the sub-bus, and sends data to the external device through four serial channel circuits; the soft-core processor The core processor also reads the data from the external device through four serial channel circuits, and stores it into the dual-port memory through the sub-bus. Described local bus comprises address line A[23:0], data line D[15:0], control line BHE, RESET, WR, RD, READY, INT; High 8-bit data is valid; RESET means reset signal; WR means write is valid, RD means read is valid, READY means data preparation status, INT means interrupt request. The sub-bus i...

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Abstract

The invention provides a modularized communication control system arranged between a host computer and external equipment. The system comprises a local bus, a double-port memorizer, a soft-core processor, a sub-bus and four serial channel circuits. The double-port memorizer and the host computer carry out bidirectional communication through the local bus; the soft-core processor reads information of the double-port memorizer through the sub-bus and sends data to the external equipment through the four serial channel circuits; and the soft-core processor also reads data transmitted from the external equipment through the four serial channel circuits and stores the data in the double-port memorizer through the sub-bus. With the modularized communication control system, a designer can place a plurality of the modularized communication control systems on the local bus according to requirements and expands serial data channels with the number of multiple of four. The modularized communication control system improves the design efficiency of using one host computer to control a multiway serial communication passage.

Description

technical field [0001] The invention relates to a control system in the field of data communication, in particular to a modular communication control system arranged between a host computer and external equipment. Background technique [0002] There are many varieties of serial data communication products on the market, such as: synchronous, asynchronous communication cards, POS terminals, Nportserver, etc., whose main function is to realize serial data communication, but these products for commercial systems have single functions and single purposes , without scalability. At present, information systems have higher requirements for serial data communication, and different usage occasions have different requirements. Some information systems not only need synchronous and asynchronous data communication, but also need to deal with various communication procedures and protocols, so general commercial products are difficult to meet requirements of these information systems. M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
Inventor 吴刚孙小晶
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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