CN104219004A - Electronic device and data processing method and device thereof - Google Patents
Electronic device and data processing method and device thereof Download PDFInfo
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- CN104219004A CN104219004A CN201310215535.6A CN201310215535A CN104219004A CN 104219004 A CN104219004 A CN 104219004A CN 201310215535 A CN201310215535 A CN 201310215535A CN 104219004 A CN104219004 A CN 104219004A
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Abstract
The data processing method is applied in an electronic device with a UART interface. The data processing method comprises: judging whether the UART interface sends data or receives data; if the UART interface sends data, conducting negation operation on the data to be sent so as to obtain first verification data; controlling the UART interface to send data to be sent and the first verification data to a receiving side according to a preset sending sequence; if the UART interface receives data, identifying data to be received and second verification data according to the preset sending sequence; conducting negation operation on one of the data to be received and second verification data so as to obtain verification data; checking whether the verification data is the identical to the other one of the data to be received and second verification data; and if the verification data is not identical to the other one of the data to be received and second verification data, sending a retransmission instruction to the receiving side.
Description
Technical field
The present invention relates to a kind of electronic installation, particularly relate to a kind of there is UART interface electronic installation and UART interface data processing method and device.
Background technology
Existing many electronic installations adopt UART interface and other electronic installation to carry out communication, but this electronic installation does not detect the data of UART interface transmission.When UART interface communication occurs abnormal, will there is exception in the data of UART interface transmission, but electronic installation cannot be learnt, thus can cause cannot normal communication between electronic installation.
Summary of the invention
In view of this, be necessary to provide a kind of data processing method that can detect UART interface data in fact.
In addition, be necessary to provide a kind of data processing equipment that can detect UART interface data in fact.
In addition, be necessary to provide a kind of electronic installation that can detect UART interface data in fact.
This data processing method is applied to be had in the electronic installation of UART interface, the receipt that this electronic installation is sent data to recipient by UART interface and received from transmit leg.This data processing method comprises the steps:
Judge that UART interface sends data and still receives data;
If UART interface sends data, carry out negate computing by needing the data sent and obtain the first checking data;
Control UART interface according to preset sending order send need send data and the first checking data to this recipient;
If UART interface receives data, the sending order preset according to this identifies the data and the second checking data that need to receive;
One in the data needing to receive and the second checking data is carried out negate computing and is verified data;
Whether detection validation data are identical with the another one in the second checking data with the data needing to receive; And
If verification msg and need the data that receive not identical with the another one in the second checking data, then send retransmission instructions to this transmit leg, to retransfer the data of these needs reception to ask this transmit leg.
This data processing equipment is applied in electronic installation, and this electronic installation comprises UART interface and processor, and this processor, when this UART interface sends data to recipient, produces and sends instruction; This processor, when this UART interface receives the data of transmit leg transmission, produces and receives instruction.This data processing equipment comprises judge module, computing module, control device, identification module and detection module.This judge module is used for judging whether UART interface sends data or receive data according to transmission instruction or reception instruction, if UART interface sends data produce operational order, if when UART interface receives data, and generation recognition instruction.This computing module produces the first checking data for responding operational order to needing the data sent to carry out negate.This control device for control UART interface according to preset sending order send these needs send data and this first checking data to this recipient.This identification module is for responding recognition instruction and identify the data and the second checking data that need to receive according to the sending order preset from the data received, and the data received by these needs send to this computing module to be verified data to carry out negate computing with the one in this second checking data.Whether this detection module is used for detection validation data identical with the another one in this second checking data with the data that these needs receive, if verification msg is not identical with the another one in this second checking data with the data that these needs receive, this detection module sends retransmission instructions and resends to ask this transmit leg the data needing reception to this transmit leg.
This electronic installation comprises UART interface and processor, and this processor, when this UART interface sends data to recipient, produces and sends instruction; This processor, when this UART interface receives the data of transmit leg transmission, produces and receives instruction.This electronic installation also comprises data processing equipment.This data processing equipment comprises judge module, computing module, control device, identification module and detection module.This judge module is used for judging whether UART interface sends data or receive data according to transmission instruction or reception instruction, if UART interface sends data produce operational order, if when UART interface receives data, and generation recognition instruction.This computing module produces the first checking data for responding operational order to needing the data sent to carry out negate.This control device for control UART interface according to preset sending order send these needs send data and this first checking data to this recipient.This identification module is for responding recognition instruction and identify the data and the second checking data that need to receive according to the sending order preset from the data received, and the data received by these needs send to this computing module to be verified data to carry out negate computing with the one in this second checking data.Whether this detection module is used for detection validation data identical with the another one in this second checking data with the data that these needs receive, if verification msg is not identical with the another one in this second checking data with the data that these needs receive, this detection module sends retransmission instructions and resends to ask this transmit leg the data needing reception to this transmit leg.
Above-mentioned electronic installation and data processing equipment thereof and method can process the data of UART interface, to make electronic installation when receiving the data of UART interface, can detect the data of UART interface.And when UART interface data occur abnormal, electronic installation can ask transmit leg to resend data, thus the phenomenon that effectively prevent UART interface communication abnormality occurs.
Accompanying drawing explanation
Fig. 1 is the applied environment schematic diagram of the data processing equipment of a better embodiment.
Fig. 2 is the functional block diagram of the data processing equipment of a better embodiment.
Fig. 3 is the data processing method flow chart of a better embodiment.
Main element symbol description
| Data processing equipment | 10 |
| Electronic installation | 100a、100b |
| Processor | 20a、20b |
| Memory | 30a、30b |
| UART interface | 40a、40b |
| Judge module | 11 |
| Computing module | 12 |
| Control module | 13 |
| Identification module | 14 |
| Detection module | 15 |
| Step | S301~S313 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Please refer to Fig. 1, it illustrates the schematic diagram of the applied environment of data processing equipment 10.In the electronic installation 100a that two data processing equipments 10 are applied to communication respectively and electronic installation 100b.Electronic installation 100a comprises processor 20a, memory 30a and UART interface 40a.Electronic installation 100b comprises processor 20b, memory 30b and UART interface 40b.Electronic installation 100a is communicated with UART interface 40b by UART interface 40a with electronic installation 100b.UART interface 40a and UART interface 40b all comprises the transmission pin TXD for sending data and the reception pin RXD for receiving data.Electronic installation 100a and electronic installation 100b is chip, also can be electronic product, such as, and computer, multimedia player etc.
Please refer to Fig. 2, each data processing equipment 10 comprises judge module 11, computing module 12, control module 13, identification module 14 and detection module 15.Module 11 ~ 15 comprises computer program instructions.These computer program instructions are stored in memory 30a, and processor 20a performs these computer program instructions, provide corresponding data processing function.When detailed description electronic installation 100a sends data to electronic installation 100b and receives the data from electronic installation 100b respectively below, how module 11 ~ 15 provides corresponding data processing capacity.
When electronic installation 100a needs to send data to electronic installation 100b(recipient by UART interface 40a) time, processor 20a produces and sends instruction.When electronic installation 100a needs to receive electronic installation 100b(transmit leg by UART interface 40a) data that send time, processor 20a produces and receives instruction.
Judge module 11 is for the transmission instruction that produces according to processor 20a or receive instruction and judge whether UART interface 40a sends data or receive data.If when judge module 11 judges that UART interface 40a sends data, when namely transmitting pin TXD transmission data, judge module 11 produces operational order.
Computing module 12 obtains the first checking data according to this operational order to needing the data sent to carry out negate computing.Such as, transmission 0000, first checking data is needed to be 1111.
Needs transmission data and the first checking data are sent to electronic installation 100b according to the sending order preset by control module 13 controls transfer pin TXD.In the present embodiment, the sending order preset is first send the data needing to send, rear transmission first checking data.In other embodiments, after also first can sending the first checking data, send the data needing to send, or the first checking data is needing to send between the data sent.
Further, if when judge module 11 judges that UART interface 40a receives data, when namely receiving pin RXD reception data, judge module 11 produces recognition instruction.Understandably, the data that UART interface 40a receives comprise data and second checking data of the reception of electronic installation 100a needs, and this second checking data obtains needing the data received to carry out negate computing.
Identification module 14 identifies the data and the second checking data that need to receive from the data received according to the sending order preset according to this recognition instruction.Understandably, which identification module 14 identifies according to the sequencing of the data from electronic installation 100b is the data needing to receive, and which is the second checking data.
Computing module 12, for the one in the data needing to receive and the second checking data is carried out negate computing, is verified data.Such as, the data if desired received are 0111 and carry out negate computing to the data that needs receive, and verification msg is 1000.If the second checking data is 1110 and carry out negate computing to the second checking data, verification msg is 0001.
Whether detection module 15 is identical with the another one in the second checking data with the data needing to receive for detection validation data.If verification msg is identical with the another one in the second checking data with the data needing to receive, detection module 15 detects that UART interface communication is normal.If verification msg is not identical with the another one in the second checking data with the data needing to receive, detection module 15 judges UART interface communication abnormality, and sends retransmission instructions to electronic installation 100b with the data of asking electronic installation 100b to resend needs reception by transmission pin TXD.
Please refer to Fig. 3, it is the flow chart of data processing method.Data processing method is applied to be had in the electronic installation of UART interface.When UART interface sends data to recipient, electronic installation produces and sends instruction.When UART interface receives the data of transmit leg, electronic installation produces and receives instruction.
Step S301, judges whether UART interface receives data or send data.If UART interface sends data, perform step S303; If UART interface receives data, perform step S307.If UART interface does not send data yet not received data, repeat step S301.
Step S303, carries out negate computing by needing the data sent and obtains checking data.
Step S305, the data needed according to the sending order transmission preset and checking data are to recipient.In present embodiment, preset sending order be first send need send data after send the first checking data.In other embodiments, after also first can sending the first checking data, send the data needing to send, or the first checking data is needing to send between the data sent.
Step S307, from the data received, identify the data and the second checking data that need to receive according to the sending order preset, the data that these needs receive are transmitted by recipient.
Step S309, carries out negate by the one in the data needing to receive and the second checking data, is verified data.
Step S311, whether detection validation data are identical with the another one in the second checking data with the data needing to receive.If verification msg is identical with the another one in the second checking data with the data needing to receive, namely UART interface communication is normal, performs step S313; If verification msg is not identical with the another one in the second checking data with the data needing to receive, i.e. UART interface communication abnormality, flow process terminates.
Step S313, sends retransmission instructions and to retransfer data with request recipient.
Above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to above preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not depart from the spirit and scope of technical solution of the present invention.
Claims (9)
1. an electronic installation, it comprises UART interface and processor, and described processor, when described UART interface sends data to recipient, produces and sends instruction; Described processor, when described UART interface receives the data of transmit leg transmission, produces and receives instruction; It is characterized in that: described electronic installation also comprises data processing equipment, described data processing equipment comprises:
Judge module, for judging whether UART interface sends data or receive data according to transmission instruction or reception instruction, if UART interface sends data produce operational order, if when UART interface receives data, generation recognition instruction;
Computing module, produces the first checking data for responding operational order to needing the data sent to carry out negate;
Control device, for control UART interface according to preset sending order send described need send data and described first checking data to described recipient;
Identification module, for responding recognition instruction and identify the data and the second checking data that need to receive according to default sending order from the data received, and the one in the data of reception and described second checking data is needed to send to described computing module to be verified data to carry out negate computing by described;
Detection module, whether identical with the another one in described second checking data with the described data needing to receive for detection validation data, if verification msg is not identical with the another one in described second checking data with the described data needing to receive, described detection module sends retransmission instructions and resends to ask described transmit leg the data needing reception to described transmit leg.
2. electronic installation as claimed in claim 1, is characterized in that: described default sending order is the data first sending needs transmission, rear transmission checking data.
3. electronic installation as claimed in claim 2, is characterized in that: described default sending order is for first to send checking data, and rear transmission needs the data sent.
4. a data processing method, it is applied to has in the electronic installation of UART interface, the receipt that described electronic installation is sent data to recipient by UART interface and received from transmit leg, it is characterized in that: described data processing method comprises the steps:
Judge that UART interface sends data and still receives data;
If UART interface sends data, carry out negate computing by needing the data sent and obtain the first checking data;
Control UART interface according to preset sending order send need send data and the first checking data to described recipient;
If UART interface receives data, identify the data and the second checking data that need to receive according to described default sending order;
One in the data needing to receive and the second checking data is carried out negate computing and is verified data;
Whether detection validation data are identical with the another one in the second checking data with the data needing to receive; And
If verification msg and need the data that receive not identical with the another one in the second checking data, then send retransmission instructions to described transmit leg, to retransfer the described data needing reception to ask described transmit leg.
5. data processing method as claimed in claim 4, is characterized in that: described default sending order is send checking data after the data first sending needs transmission.
6. data processing method as claimed in claim 4, is characterized in that: described default sending order is for first to send checking data, and rear transmission needs the data sent.
7. a data processing equipment, it is applied in electronic installation, and described electronic installation comprises UART interface and processor, and described processor, when described UART interface sends data to recipient, produces and sends instruction; Described processor, when described UART interface receives the data of transmit leg transmission, produces and receives instruction; It is characterized in that: described data processing equipment comprises:
Judge module, for judging whether UART interface sends data or receive data according to transmission instruction or reception instruction, if UART interface sends data produce operational order, if when UART interface receives data, generation recognition instruction;
Computing module, produces the first checking data for responding operational order to needing the data sent to carry out negate;
Control device, for control UART interface according to preset sending order send described need send data and described first checking data to described recipient;
Identification module, for responding recognition instruction and identify the data and the second checking data that need to receive according to default sending order from the data received, and the one in the data of reception and described second checking data is needed to send to described computing module to be verified data to carry out negate computing by described;
Detection module, whether identical with the another one in described second checking data with the described data needing to receive for detection validation data, if verification msg is not identical with the another one in described second checking data with the described data needing to receive, described detection module sends retransmission instructions and resends to ask described transmit leg the data needing reception to described transmit leg.
8. data processing equipment as claimed in claim 7, is characterized in that: described default sending order is the data first sending needs transmission, rear transmission checking data.
9. data processing equipment as claimed in claim 7, is characterized in that: described default sending order is for first to send checking data, and rear transmission needs the data sent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215535.6A CN104219004A (en) | 2013-06-03 | 2013-06-03 | Electronic device and data processing method and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215535.6A CN104219004A (en) | 2013-06-03 | 2013-06-03 | Electronic device and data processing method and device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104219004A true CN104219004A (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310215535.6A Pending CN104219004A (en) | 2013-06-03 | 2013-06-03 | Electronic device and data processing method and device thereof |
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| CN (1) | CN104219004A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107085507A (en) * | 2016-02-16 | 2017-08-22 | 三星电子株式会社 | Data receiving-transmitting method and device |
| CN109271099A (en) * | 2018-08-22 | 2019-01-25 | 郑州云海信息技术有限公司 | The method realized the write protection of I2C data with CPLD and read confirmation |
| CN112416839A (en) * | 2020-11-02 | 2021-02-26 | 光华临港工程应用技术研发(上海)有限公司 | System for realizing UART (universal asynchronous receiver transmitter) communication |
-
2013
- 2013-06-03 CN CN201310215535.6A patent/CN104219004A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107085507A (en) * | 2016-02-16 | 2017-08-22 | 三星电子株式会社 | Data receiving-transmitting method and device |
| CN109271099A (en) * | 2018-08-22 | 2019-01-25 | 郑州云海信息技术有限公司 | The method realized the write protection of I2C data with CPLD and read confirmation |
| CN112416839A (en) * | 2020-11-02 | 2021-02-26 | 光华临港工程应用技术研发(上海)有限公司 | System for realizing UART (universal asynchronous receiver transmitter) communication |
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Application publication date: 20141217 |