CN101980465A - Serially concatenated system, data transmission method, master device and slave devices - Google Patents
Serially concatenated system, data transmission method, master device and slave devices Download PDFInfo
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Abstract
The invention discloses a serially concatenated system, a data transmission method, a master device and slave devices. The concatenated system consisting of the master device and at least two slave devices is adopted for transmitting, receiving and forwarding data. The method comprises that: the master device puts a device number of a target slave device into data to be transmitted and transmits the data to an intermediate slave device concatenated with the master device; the intermediate slave device receives data transmitted by adjacent upstream equipment, calculates whether a data check digit is correct or not, and returns a check result serving as an acknowledgement frame to the upstream equipment; and whether the device number digit is the same as that of the current device is judged, if so, contents in a data area are processed, and the data transmission is finished, otherwise, the data is continuously transmitted to the next-level intermediate slave device.
Description
Technical field
The present invention relates to a kind of data transmission technology, particularly series cascade system, data transmission method, main equipment and slave unit.
Background technology
Along with the development in fields such as electronics, communication, the communication between the distinct device becomes more and more important, and the number of devices that the information of need carrying out is transmitted is also increasing gradually, and the application of carrying out transfer of data between multiple devices is more and more general.Usually, in order to realize the transfer of data between the multiple devices, prior art adopts hub-and-spoke configuration,, sends data to many receiving devices respectively by a sending ending equipment that is.Under this data transfer mode, when a large amount of receiving device, need sending ending equipment to have a large amount of interfaces and connection cable, this hub-and-spoke configuration has brought inconvenience for the maintenance of equipment.At present, in order to realize that a plurality of data transfer between devices those skilled in the art have proposed to adopt the mode of series cascade to carry out transfer of data, not only can increase the number of connection of equipment by series cascade, effectively solve hardware one-tenth and design problem that the number of devices quantitative change is caused for a long time, and solved the connectivity problem of multiple spot cascade connected in series.But, at present existing series cascade system does not propose concrete data transmission scheme, and the intermediate equipment of concatenation system can not in time reflect the delivery status of data, whether have only transfer of data to arrive end-equipment or destination device could the judgment data transmission correct and complete, to such an extent as to when going wrong in the transfer of data, can not in time find, cause the decline of data transmission efficiency.Therefore, be necessary to provide a kind of cascade data transfer between devices scheme.
Summary of the invention
The invention provides a kind of series cascade system, data transmission method, main equipment and slave unit, in order to realize the transfer of data in the series cascade system.
A kind of series cascade system is characterized in that, comprising:
Main equipment is used for sending data to the adjacent downstream slave unit;
Middle slave unit is used to receive the data that adjacent upstream equipment sends, and judges whether the data that receive are correct;
If the data that receive are correct, then check the destination device that the data receive will arrive, if the destination device that the data that receive will arrive is this equipment, then the data that receive are handled, if the destination device that the data that receive will arrive is not this equipment, then the data that receive are sent to the adjacent downstream slave unit;
If the error in data that receives, the then information of makeing mistakes to the adjacent upstream equipment sending data;
Terminal slave unit is used to receive the data that adjacent upstream equipment sends, and judges whether the data that receive are correct, if the data that receive are correct, then the data that receive handled, otherwise, the information of makeing mistakes to the adjacent upstream equipment sending data.
In the described series cascade system, carry the data check position in the data that main equipment sends.
In the described series cascade system, whether the data check position of carrying in the data that middle slave unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
In the described series cascade system, whether the data check position of carrying in the data that terminal slave unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
Described series cascade system carries the sign of destination device in the data that main equipment sends;
The sign of the destination device that carries in the data that middle slave unit receives by inspection is checked the destination device that the data that receive will arrive.
A kind of data transmission method is applicable to described series cascade system, comprising:
Main equipment generates the data that need transmission;
Main equipment sends to the adjacent downstream slave unit with the data that generate.
Carry the data check position in the data that described main equipment generates.
Carry the sign of destination device in the data that described main equipment generates.
A kind of data processing equipment, described data processing equipment are the main equipment in the described series cascade system, comprising:
Generation unit is used to generate the data that needs send;
Transmitting element, the data that are used for generating send to the adjacent downstream slave unit.
Carry the data check position in the data that described generation generates.
Carry the sign of destination device in the data that described generation unit generates.
A kind of data transmission method is applicable to described series cascade system, comprising:
Middle slave unit receives the data that adjacent upstream equipment sends;
Middle slave unit judges whether the data that receive are correct;
If the data that receive are correct, then check the destination device that the data receive will arrive, if the destination device that the data that receive will arrive is this equipment, then the data that receive are handled, if the destination device that the data that receive will arrive is not this equipment, then the data that receive are sent to the adjacent downstream slave unit;
If the error in data that receives, the then information of makeing mistakes to the adjacent upstream equipment sending data.
Whether the data check position of carrying in the data that slave unit receives by judgement in the middle of described is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
The sign of the destination device that carries in the data that slave unit receives by inspection in the middle of described is checked the destination device that the data that receive will arrive.
A kind of data processing equipment, the middle slave unit in the described series cascade system comprises:
Receiving element is used to receive the data that adjacent upstream equipment sends;
Judging unit is used to judge whether the data that receive are correct;
Inspection unit is used for after judging unit determines that the data that receive are correct the destination device that the data that inspection receives will arrive;
Processing unit is used for after inspection unit checks out that destination device that the data that receive will arrive is this equipment the data that receiving element receives being handled;
Transmitting element is used for after the destination device that the data that inspection unit is determined to receive will arrive is not this equipment the data that receive being sent to the adjacent downstream slave unit;
If judging unit is determined the error in data that receives, the transmitting element information of makeing mistakes then to the adjacent upstream equipment sending data.
Whether the data check position of carrying in the data that described judging unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
The sign of the destination device that carries in the data that described inspection unit receives by inspection is checked the destination device that the data that receive will arrive.
A kind of data transmission method is applicable to described series cascade system, comprising:
Terminal slave unit receives the data that adjacent upstream equipment sends;
Terminal slave unit judges whether the data that receive are correct, if the data that receive are correct, then the data that receive handled, otherwise, the information of makeing mistakes to the adjacent upstream equipment sending data.
Whether the data check position of carrying in the data that described terminal slave unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
A kind of data processing equipment comprises:
Receiving element is used to receive the data that adjacent upstream equipment sends;
Judging unit is used to judge whether the data that receive are correct;
Processing unit is used for after judging unit determines that the data that receive are correct the data that receive being handled;
Transmitting element is used for behind the error in data that judging unit is determined to receive, the information of makeing mistakes to the adjacent upstream equipment sending data.
Whether the data check position of carrying in the data that described judging unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
In sum, the invention provides a kind of series cascade system, data transmission method, main equipment and slave unit can make the transmission of carrying out data at least between any level attached device that comprises main equipment and two slave units receive and forwarding.Main equipment sends data to the adjacent downstream slave unit; Middle slave unit receives the data that adjacent upstream equipment sends, and judge whether the data that receive are correct, if the data that receive are correct, then check the destination device that the data receive will arrive, if the destination device that the data that receive will arrive is this equipment, then the data that receive are handled,, then the data that receive are sent to adjacent downstream equipment if the destination device that the data that receive will arrive is not this equipment; If the error in data that receives, the then information of makeing mistakes to the adjacent upstream equipment sending data.The mode of utilization series cascade is transmitted data, not only can increase the number of connection of equipment, the hardware cost that effective solution equipment increase brings and the connectivity problem of multiple spot cascade connected in series, the middle slave unit that has further solved prior art can not reflect the problem of data transmission state, improves the correct efficiency of transmission of data.
Description of drawings
In order to be illustrated more clearly in the present invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the equipment connection diagram of a kind of series cascade provided by the invention system.
Fig. 2 is main equipment transfer of data flow process figure in a kind of data transmission method provided by the invention;
Fig. 3 is the building-block of logic of main equipment in a kind of data processing equipment provided by the invention;
Fig. 4 is middle slave unit transfer of data journey figure in a kind of data transmission method provided by the invention;
Fig. 5 is the building-block of logic of middle slave unit in a kind of data processing equipment provided by the invention;
Fig. 6 is terminal slave unit transfer of data flow process figure in a kind of data transmission method provided by the invention;
Fig. 7 is the building-block of logic of terminal slave unit in a kind of data transmission method provided by the invention;
Fig. 8 is the equipment connection diagram of a kind of series cascade system embodiment provided by the invention.
Fig. 9 is the flow chart of an embodiment provided by the invention.
Embodiment
The invention provides a kind of series cascade system, data transmission method main equipment and slave unit, can make main equipment any one slave unit in the level connected link send data by the present invention.Main equipment sends to the data that generate and the middle slave unit in the downstream of its cascade, whether slave unit receives correctly by data check position judgment data in the middle of the downstream, if it is correct, judge again then whether these data send to current device, if then data are handled according to data content; If not, then continue to the next stage equipment sending data of cascade with it, the rest may be inferred, arrives the receiving equipment or the level connected link end of appointment up to data.
In order to make those skilled in the art person understand technical scheme in the embodiment of the invention better, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing skill among the present invention are stated scheme and be described in further detail:
The present invention at first provides a kind of series cascade system, and as shown in Figure 1, this system comprises:
Main equipment 101 is used for sending data to the adjacent downstream slave unit;
Middle slave unit 102 is used to receive the data that adjacent upstream equipment sends, and judges whether the data that receive are correct;
If the data that receive are correct, then check the destination device that the data receive will arrive, if the destination device that the data that receive will arrive is this equipment, then the data that receive are handled, if the destination device that the data that receive will arrive is not this equipment, then the data that receive are sent to the adjacent downstream slave unit;
If the error in data that receives, the then information of makeing mistakes to the adjacent upstream equipment sending data;
Terminal slave unit 103 is used to receive the data that adjacent upstream equipment sends, and judges whether the data that receive are correct, if the data that receive are correct, then the data that receive handled, otherwise, the information of makeing mistakes to the adjacent upstream equipment sending data.
In the level connected link, main equipment and terminal slave unit have only respectively outside the data port, and middle slave unit all has two ports, and one is the transmitting uplink data port, and one is the downlink data transmission port.
In the serially concatenated provided by the invention system, carry the data check position in the data that main equipment 101 sends.
In the serially concatenated provided by the invention system, whether the data check position of carrying in the data that middle slave unit 102 receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
In the series cascade provided by the invention system, whether the data check position of carrying in the data that terminal slave unit 103 receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
Carry the sign of destination device in the data that series cascade system master provided by the invention 101 sends: the sign of the destination device that carries in the data that middle slave unit 102 receives by inspection, check the destination device that the data that receive will arrive.
The invention provides a kind of data transmission method, be applicable to described series cascade system, as shown in Figure 2, this method comprises:
S201: main equipment generates the data that need transmission;
S202: main equipment sends to the adjacent downstream slave unit with the data that generate.
In the data transmission method provided by the invention, carry the data check position in the data that main equipment generates.
In the data transmission method provided by the invention, carry the sign of destination device in the data that main equipment generates.
The invention provides a kind of data processing equipment, described data processing equipment is the main equipment in the described series cascade system, and described data processing equipment comprises:
Transmitting element 302, the data that are used for generating send to the adjacent downstream slave unit.
In the data processing equipment provided by the invention, carry the data check position in the data that generation unit 301 generates.
In the data processing equipment provided by the invention, carry the sign of destination device in the data that generation unit 301 generates.
The invention provides a kind of data transmission method, be applicable to described series cascade system, as shown in Figure 4, this method comprises:
S401: middle slave unit receives the data that adjacent upstream equipment sends;
S402: middle slave unit judges whether the data that receive are correct;
If the data that receive are correct, then check the destination device that the data receive will arrive, if the destination device that the data that receive will arrive is this equipment, then the data that receive are handled, if the destination device that the data that receive will arrive is not this equipment, then the data that receive are sent to the adjacent downstream slave unit;
If the error in data that receives, the then information of makeing mistakes to the adjacent upstream equipment sending data.
In the data transmission method provided by the invention, whether the data check position of carrying in the data that middle slave unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct:
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
In the data transmission method provided by the invention, the sign of the destination device that carries in the data that middle slave unit receives by inspection is checked the destination device that the data that receive will arrive.
The invention provides a kind of data processing equipment, described data processing equipment is the middle slave unit in the described series cascade system, and as shown in Figure 5, described data processing equipment comprises:
Receiving element 501 is used to receive the data that adjacent upstream equipment sends;
Judging unit 502 is used to judge whether the data that receive are correct;
Transmitting element 505 is used for after the destination device that the data that inspection unit 503 is determined to receive will arrive is not this equipment the data that receive being sent to the adjacent downstream slave unit;
If judging unit 502 is determined the error in data that receives, transmitting element 505 information of makeing mistakes then to the adjacent upstream equipment sending data.
In the data processing equipment provided by the invention, whether the data check position of carrying in the data that judging unit 502 receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
In the data processing equipment provided by the invention, the contents equipment mark of carrying in the data that inspection unit 503 receives by inspection is checked the destination device that the data that receive will arrive.
The invention provides a kind of data transmission method, be applicable to described series cascade system, as shown in Figure 6, this method comprises:
S601: terminal slave unit receives the data that adjacent upstream equipment sends;
S602: terminal slave unit judges whether the data that receive are correct, if the data that receive are correct, then the data that receive handled, otherwise, the information of makeing mistakes to the adjacent upstream equipment sending data.
In the data transmission method provided by the invention, data check position of carrying and the data check position that calculates judge for not identical whether the data that receive are correct in the data that terminal slave unit receives by judgement;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
The invention provides a kind of data processing equipment, described data processing equipment is the terminal slave unit in the described series cascade system, and as shown in Figure 7, described data processing equipment comprises:
Receiving element 701 is used to receive the data that adjacent upstream equipment sends;
Judging unit 702 is used to judge whether the data that receive are correct;
Transmitting element 704 is used for behind the error in data that judging unit 702 is determined to receive, the information of makeing mistakes to the adjacent upstream equipment sending data.
In the data processing equipment provided by the invention, whether the data check position of carrying in the data that judging unit 702 receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
More clearly understand the present invention for ease of those skilled in the art, the present invention is described in detail more below.As shown in Figure 8, a main equipment and three slave units are arranged in the present embodiment, adopt the mode of cascade to connect between them, and slave unit all uses two ports in the middle of all the other except that terminal slave unit, one of them is the transmitting uplink data port, be used for being connected with upper level equipment, another is the downlink data transmission port, is used for being connected with next stage equipment.In the present embodiment, main equipment 801 be numbered 01, middle slave unit 802 be numbered 02, middle slave unit 803 be numbered 03, terminal slave unit 804 be numbered 04.
In the present embodiment, slave unit 802 in the middle of main equipment 801 sends data to second.Main equipment 801 places the data that will send with the device numbering 03 of middle slave unit 803, and then data are sent to middle slave unit 802 with its cascade by downlink port, send downwards step by step up to the receiving equipment of appointment or till the level connected link end.
Fig. 9 is cascade transfer of data flow process figure of the present invention.Concrete steps are as follows:
S901: main equipment places the data that will send with the device numbering of purpose slave unit, and sends to the middle slave unit of cascade with it.
S902: slave unit receives the data that upstream equipment sends in the middle of the downstream.
S903: after all Data Receiving in the Frame were finished, whether complete sum was correct at first to verify the data that received by the data check position, and check results is returned to upper level equipment as the data validation frame.If Data Receiving is correct, then continue execution in step S904; If mistake then continue to wait for that higher level equipment resends data.
S904: after confirming that Data Receiving is correct, whether the data of current device judgment device numbering position are identical with the device numbering of current device.If identical, execution in step S905 then; Difference is execution in step S906 then.
S905: carry out respective handling according to the content in the data field, and the end data transmission.
S906: continue to the next stage equipment sending data of its cascade.
Continue execution in step S902～S906, send to up to data till the receiving equipment or link end of appointment.
As mentioned above, the invention provides a kind of series cascade system, data transmission method, main equipment and slave unit.Main equipment places the data that will send to send to middle slave unit with its cascade the device numbering of purpose slave unit; Middle slave unit receives the data that adjacent upstream equipment sends, and judges that the data that receive are incorrect, and the result is returned to upstream equipment as acknowledgement frame; Whether judgment device numbering position is identical with current device, if identical, then the content in the data field handled, and if the end data transmission different, then continues to send to the middle slave unit of next stage.The mode of utilization series cascade is transmitted data, can increase the number of connection of equipment, the hardware cost that effective solution equipment increase brings and the connectivity problem of design problem and multiple spot cascade connected in series, the middle slave unit that has further solved prior art can not reflect the problem of data transmission state, improves the correct efficiency of transmission of data.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (21)
1. a series cascade system is characterized in that, comprising:
Main equipment is used for sending data to the adjacent downstream slave unit;
Middle slave unit is used to receive the data that adjacent upstream equipment sends, and judges whether the data that receive are correct;
If the data that receive are correct, then check the destination device that the data receive will arrive, if the destination device that the data that receive will arrive is this equipment, then the data that receive are handled, if the destination device that the data that receive will arrive is not this equipment, then the data that receive are sent to the adjacent downstream slave unit;
If the error in data that receives, the then information of makeing mistakes to the adjacent upstream equipment sending data;
Terminal slave unit is used to receive the data that adjacent upstream equipment sends, and judges whether the data that receive are correct, if the data that receive are correct, then the data that receive handled, otherwise, the information of makeing mistakes to the adjacent upstream equipment sending data.
2. series cascade as claimed in claim 1 system is characterized in that, carries the data check position in the data that main equipment sends.
3. series cascade as claimed in claim 1 or 2 system is characterized in that, whether the data check position of carrying in the data that middle slave unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
4. series cascade as claimed in claim 1 or 2 system is characterized in that, whether the data check position of carrying in the data that terminal slave unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
5. series cascade as claimed in claim 1 system is characterized in that, carries the sign of destination device in the data that main equipment sends;
The sign of the destination device that carries in the data that middle slave unit receives by inspection is checked the destination device that the data that receive will arrive.
6. a data transmission method is characterized in that, is applicable to the described system of claim 1, and described method comprises:
Main equipment generates the data that need transmission;
Main equipment sends to the adjacent downstream slave unit with the data that generate.
7. data transmission method as claimed in claim 6 is characterized in that, carries the data check position in the data that main equipment generates.
8. data transmission method as claimed in claim 6 is characterized in that, carries the sign of destination device in the data that main equipment generates.
9. a data processing equipment is characterized in that, described data processing equipment is the main equipment in the described system of claim 1, and described data processing equipment comprises:
Generation unit is used to generate the data that needs send;
Transmitting element, the data that are used for generating send to the adjacent downstream slave unit.
10. data processing equipment as claimed in claim 9 is characterized in that, carries the data check position in the data that generation unit generates.
11. data processing equipment as claimed in claim 9 is characterized in that, carries the sign of destination device in the data that generation unit generates.
12. a data transmission method is characterized in that, is applicable to the described system of claim 1, described method comprises:
Middle slave unit receives the data that adjacent upstream equipment sends;
Middle slave unit judges whether the data that receive are correct;
If the data that receive are correct, then check the destination device that the data receive will arrive, if the destination device that the data that receive will arrive is this equipment, then the data that receive are handled, if the destination device that the data that receive will arrive is not this equipment, then the data that receive are sent to the adjacent downstream slave unit;
If the error in data that receives, the then information of makeing mistakes to the adjacent upstream equipment sending data.
13. method as claimed in claim 12 is characterized in that, whether the data check position of carrying in the data that middle slave unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
14. method as claimed in claim 12 is characterized in that, the sign of the destination device that carries in the data that middle slave unit receives by inspection is checked the destination device that the data that receive will arrive.
15. a data processing equipment is characterized in that, described data processing equipment is the middle slave unit in the described system of claim 1, and described data processing equipment comprises:
Receiving element is used to receive the data that adjacent upstream equipment sends;
Judging unit is used to judge whether the data that receive are correct;
Inspection unit is used for after judging unit determines that the data that receive are correct the destination device that the data that inspection receives will arrive;
Processing unit is used for after inspection unit checks out that destination device that the data that receive will arrive is this equipment the data that receiving element receives being handled;
Transmitting element is used for after the destination device that the data that inspection unit is determined to receive will arrive is not this equipment the data that receive being sent to the adjacent downstream slave unit;
If judging unit is determined the error in data that receives, the transmitting element information of makeing mistakes then to the adjacent upstream equipment sending data.
16. data processing equipment as claimed in claim 15 is characterized in that, whether the data check position of carrying in the data that judging unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
17. data processing equipment as claimed in claim 15 is characterized in that, the sign of the destination device that carries in the data that inspection unit receives by inspection is checked the destination device that the data that receive will arrive.
18. a data transmission method is characterized in that, is applicable to the described system of claim 1, described method comprises:
Terminal slave unit receives the data that adjacent upstream equipment sends;
Terminal slave unit judges whether the data that receive are correct, if the data that receive are correct, then the data that receive handled, otherwise, the information of makeing mistakes to the adjacent upstream equipment sending data.
19. data transmission method as claimed in claim 18 is characterized in that, whether the data check position of carrying in the data that terminal slave unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, determine the error in data that receives.
20. a data processing equipment is characterized in that, described data processing equipment is the terminal slave unit in the described system of claim 1, and described data processing equipment comprises:
Receiving element is used to receive the data that adjacent upstream equipment sends;
Judging unit is used to judge whether the data that receive are correct;
Processing unit is used for after judging unit determines that the data that receive are correct the data that receive being handled;
Transmitting element is used for behind the error in data that judging unit is determined to receive, the information of makeing mistakes to the adjacent upstream equipment sending data.
21. data processing equipment as claimed in claim 20 is characterized in that, whether the data check position of carrying in the data that judging unit receives by judgement is identical with the data check position that calculates, and judges whether the data that receive are correct;
If identical, determine that then the data that receive are correct, otherwise, the error in data that receives.
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| CN2010105274245A CN101980465A (en) | 2010-11-02 | 2010-11-02 | Serially concatenated system, data transmission method, master device and slave devices |
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| CN2010105274245A CN101980465A (en) | 2010-11-02 | 2010-11-02 | Serially concatenated system, data transmission method, master device and slave devices |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103577485A (en) * | 2012-08-07 | 2014-02-12 | 上海达实联欣科技发展有限公司 | Master and slave mode inquiry system and method |
| CN104253667A (en) * | 2013-06-28 | 2014-12-31 | 联芯科技有限公司 | System and method for check and feedback of serial synchronous bus for mobile phone platform |
| CN114675698A (en) * | 2022-03-17 | 2022-06-28 | 北京芯格诺微电子有限公司 | Voltage regulation method of multi-load system based on single bus communication |
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| US20080052417A1 (en) * | 2006-08-24 | 2008-02-28 | Fanuc Ltd | Data transfer method and data transfer apparatus |
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| CN103577485B (en) * | 2012-08-07 | 2016-10-19 | 上海达实联欣科技发展有限公司 | Master slave mode inquiry system and method |
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| CN114675698A (en) * | 2022-03-17 | 2022-06-28 | 北京芯格诺微电子有限公司 | Voltage regulation method of multi-load system based on single bus communication |
| CN114675698B (en) * | 2022-03-17 | 2023-09-29 | 北京芯格诺微电子有限公司 | Voltage regulation method of multi-load system based on single bus communication |
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