CN202472382U

CN202472382U - A data communication device

Info

Publication number: CN202472382U
Application number: CN2012200459733U
Authority: CN
Inventors: 苏畅
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2012-02-09
Filing date: 2012-02-09
Publication date: 2012-10-03
Anticipated expiration: 2022-02-09

Abstract

Provided is a data communication device and relates to a communication device. The data communication device comprises a DSP, a dual port RAM, and a single chip microcomputer (SCM). The DSP is interconnected with the dual port RAM via data bus while the dual port RAM is connected with the SCM via another data bus, and the SCM and the DSP are both connected with the dual port RAM via address bus and a control line. The problems of long data transmission time, low processing speed, complex structure, and influence on the performance of the overall system of the conventional data communication device are resolved by the provided data communication device. And not only the hardware configuration and the software program are simplified, but also a high communication speed of the system is achieved so that the real-time performance and the reliability of the system are maintained.

Description

Data communication equipment (DCE)

Technical field:

The utility model relates to communicator, is specifically related to data communication equipment (DCE).

Background technology:

In recent years, along with the continuous development of power electronic devices, the application of high voltage static type dynamic reactive compensation device (SVC) is also more and more, and particularly in important events such as metallurgy, mining and electric railway, the TCR device is all being played the part of important role.Regard to the control procedure of high-pressure reactive compensation controller; It is very important carrying out data processing to quick real-time; Need in the shortest time, send the data that the scene constantly changes to controller, carry out handled by controller, electricity is accomplished the control to total system eventually.General a slice DSP that adopts adds that storer, A/D converter and Peripheral Interface constitute a complete control system in the high-pressure reactive compensation equipment in the past, is infeasible but this scheme will reach high-speed real-time control.Because real-time control system generally need accomplish data acquisition, mould/number conversion, analytical calculation, D/A switch, real-time process control and man-machine interface, with tasks such as communicating by letter of external system; Depending merely on a slice DSP accomplishes these work and will certainly prolong the control cycle of system to controlling object greatly; Reduce control accuracy, thereby influenced the performance of total system.

The utility model content:

The purpose of the utility model provides data communication equipment (DCE), and it has solved, and the data communication equipment (DCE) data transmission period is long in the past, processing speed is slow, complex structure, influence the difficult problems such as performance of total system.

In order to solve the existing problem of background technology, the utility model is to adopt following technical scheme: it comprises DSP1, dual port RAM 2, single-chip microcomputer 3; DSP1 interconnects through data bus and dual port RAM 2, and dual port RAM 2 is connected with single-chip microcomputer 3 through data bus, and single-chip microcomputer 3 all is connected with dual port RAM 2 with control line through address bus with DSP1.

The utility model has not only been simplified the Hardware configuration and the software programming of system, and makes system have higher communication speed, has guaranteed the real-time and the reliability of system.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Embodiment:

Referring to Fig. 1, this embodiment adopts following technical scheme: it comprises DSP1, dual port RAM 2, single-chip microcomputer 3; DSP1 interconnects through data bus and dual port RAM 2, and dual port RAM 2 is connected with single-chip microcomputer 3 through data bus, and single-chip microcomputer 3 all is connected with dual port RAM 2 with control line through address bus with DSP1.

This embodiment at first CPU sends to data on the data bus of dual port RAM, if this moment, DSP did not write data in the same unit in dual port RAM, then the data of CPU can write in the dual port RAM; And if DSP just can take out these data from this unit reads data at this moment, handles accordingly; After treating these processing of system responses and adjustment output, DSP obtains the up-to-date real time data of system and is sent on the data bus of dual port RAM, if this moment, CPU did not carry out write operation to dual port RAM; The data of DSP just can write in the dual port RAM; Equally, CPU can read these data immediately, and these data are used for monitoring demonstration in real time.

This embodiment has not only been simplified the Hardware configuration and the software programming of system, and makes system have higher communication speed, has guaranteed the real-time and the reliability of system.

Claims

1. data communication equipment (DCE) is characterized in that it comprises DSP (1), dual port RAM (2), single-chip microcomputer (3); DSP (1) interconnects through data bus and dual port RAM (2), and dual port RAM (2) is connected with single-chip microcomputer (3) through data bus, and single-chip microcomputer (3) all is connected with dual port RAM (2) with control line through address bus with DSP (1).