CN201897790U - Multiple-MCU (micro-control unit) information exchange device - Google Patents
Multiple-MCU (micro-control unit) information exchange device Download PDFInfo
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- CN201897790U CN201897790U CN2010206001062U CN201020600106U CN201897790U CN 201897790 U CN201897790 U CN 201897790U CN 2010206001062 U CN2010206001062 U CN 2010206001062U CN 201020600106 U CN201020600106 U CN 201020600106U CN 201897790 U CN201897790 U CN 201897790U
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Abstract
The utility model relates to a multiple-MCU (micro-control unit) information exchange device. A multiple-MCU interface unit is connected with a command analyzing unit by a multiple-MCU bus, the command analyzing unit analyzes and routes commands from different MCUs and is connected with a control unit by a control wire, the control unit is connected with a data output control table, an interruption processing unit and a reading/writing driving unit by control lines, the reading/writing driving unit is connected with a data exchange cell, the data exchange cell is connected with the data output control table so as to map outputted data into the data output control table, the data output control table is connected with the multiple-MCU interface unit by multiple channels of data output buses, and the interruption processing unit is connected with the multiple-MCU interface unit by a multiple-interruption control wire. The multiple-MCU information exchange device has the advantages that the multiple-MCU information exchange device can realize information exchange among two to five MCUs, is simple in control mode and flexible and convenient in use, adopts a specially designed control structure, is speedy and controllable in data exchange, and is simple in structure and high in reliability by adopting a programmable logic device for realization.
Description
Technical field
The utility model relates in a kind of automation field, particularly many MCU message exchange of the message exchange between the different communication systems.
Background technology
Message exchange is used for the message exchange between the different control system more, and present message exchange adopts the serial communication mode more, only limits to two message exchanges between the system, and takies a large amount of system resources.
Summary of the invention
In view of the deficiency that prior art exists, the utility model provides a kind of and carries out message exchange, the message exchange of many MCU flexibly easy to use between a plurality of control system.
The utility model for achieving the above object, the technical scheme of being taked is: a kind of many MCU message exchange, it is characterized in that: comprise FPGA, described FPGA internal circuit comprises many MCU interface unit, command resolution unit, control module, output data control table, Interrupt Process unit, read/write driver element and exchanges data pond, many MCU interface unit is connected with command resolution unit by many MCU bus, by command resolution unit to resolving and route from the order of different MCU; Command resolution unit is connected with control module by control line, control module is connected with output data control table, Interrupt Process unit, read/write driver element by control line, and control module is according to the drive signal that generates other functional unit from the control signal of command resolution unit; The read/write driver element is connected with the exchanges data pond by control line, and the exchanges data pond is connected with the output data control table by the multichannel data line, and the read/write driver element is finished the read/write that data is exchanged the pond, with the data map exported in the output data control table; The output data control table is connected with many MCU interface unit by the multichannel data output bus, and the data map that requires to export is arrived the MCU data-out bus; The Interrupt Process unit is connected with many MCU interface unit by the multiple interrupt control line, with the interrupt map that requires to export to different MCU look-at-me lines.
Characteristics of the present utility model are: 1, can finish 2 ~ 5 message exchanges between the MCU, control mode is simple, and is flexible and convenient to use; 2, adopt custom-designed control structure, exchanges data is fast controlled; 3, adopt programmable logic device (PLD) to realize, simple in structure, the reliability height.
Description of drawings
Fig. 1 connects block diagram for the utility model circuit.
Fig. 2 is a MCU port synoptic diagram.
Embodiment
As shown in Figure 1, many MCU(single-chip microcomputer) message exchange, comprise FPGA (FPGA), the FPGA internal circuit is made up of many MCU interface unit, command resolution unit, control module, output data control table, Interrupt Process unit, read/write driver element and exchanges data pond, many MCU interface unit is connected with command resolution unit by many MCU bus, by command resolution unit to resolving and route from the order of different MCU; Command resolution unit is connected with control module by control line, control module is connected with output data control table, Interrupt Process unit, read/write driver element by control line, and control module is according to the drive signal that generates other functional unit from the control signal of command resolution unit; The read/write driver element is connected with the exchanges data pond by control line, and the exchanges data pond is connected with the output data control table by the multichannel data line, and the read/write driver element is finished the read/write that data is exchanged the pond, with the data map exported in the output data control table; The output data control table is connected with many MCU interface unit by the multichannel data output bus, and the data map that requires to export is arrived the MCU data-out bus; The Interrupt Process unit is connected with many MCU interface unit by the multiple interrupt control line, with the interrupt map that requires to export to different MCU look-at-me lines.External interface is 5 MCU interfaces, and 5 MCU interfaces are connected with many MCU interface unit respectively by the MCU bus.
As shown in Figure 2, A is the MCU data input pin among the figure, and B is the MCU command input end, and C is a MCU gating signal input end, and D is a MCU feedback data output terminal, and E is that MCU interrupts output terminal, and F is that the MCU read-write enables input end, and G is a MCU write pulse input end.Control mode shown in the MCU interface is: in the MCU gating signal with write enable signal when effective, with MCU order and data writing information switch, according to MCU order target setting MCU, generate the look-at-me of importing target MCU at the rising edge of MCU write pulse.Target MCU is had no progeny in receiving, reads interrupt type, and judgment data source MCU then reads relevant register and obtains information in view of the above.
Claims (1)
1. MCU message exchange more than a kind, it is characterized in that: comprise FPGA, described FPGA internal circuit comprises many MCU interface unit, command resolution unit, control module, output data control table, Interrupt Process unit, read/write driver element and exchanges data pond, many MCU interface unit is connected with command resolution unit by many MCU bus, by command resolution unit to resolving and route from the order of different MCU; Command resolution unit is connected with control module by control line, control module is connected with output data control table, Interrupt Process unit, read/write driver element by control line, and control module is according to the drive signal that generates other functional unit from the control signal of command resolution unit; The read/write driver element is connected with the exchanges data pond by control line, and the exchanges data pond is connected with the output data control table by the multichannel data line, and the read/write driver element is finished the read/write that data is exchanged the pond, with the data map exported in the output data control table; The output data control table is connected with many MCU interface unit by the multichannel data output bus, and the data map that requires to export is arrived the MCU data-out bus; The Interrupt Process unit is connected with many MCU interface unit by the multiple interrupt control line, with the interrupt map that requires to export to different MCU look-at-me lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206001062U CN201897790U (en) | 2010-11-10 | 2010-11-10 | Multiple-MCU (micro-control unit) information exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206001062U CN201897790U (en) | 2010-11-10 | 2010-11-10 | Multiple-MCU (micro-control unit) information exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897790U true CN201897790U (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206001062U Expired - Fee Related CN201897790U (en) | 2010-11-10 | 2010-11-10 | Multiple-MCU (micro-control unit) information exchange device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201897790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904882A (en) * | 2021-09-24 | 2022-01-07 | 广东汇天航空航天科技有限公司 | Communication control system and communication control method of multiple MCU units |
-
2010
- 2010-11-10 CN CN2010206001062U patent/CN201897790U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904882A (en) * | 2021-09-24 | 2022-01-07 | 广东汇天航空航天科技有限公司 | Communication control system and communication control method of multiple MCU units |
| CN113904882B (en) * | 2021-09-24 | 2023-08-18 | 广东汇天航空航天科技有限公司 | Communication control system and communication control method for multiple MCU units |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20111110 |