CN101499043A - Single-wire bus system and communication method - Google Patents
Single-wire bus system and communication method Download PDFInfo
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- CN101499043A CN101499043A CNA2009100964966A CN200910096496A CN101499043A CN 101499043 A CN101499043 A CN 101499043A CN A2009100964966 A CNA2009100964966 A CN A2009100964966A CN 200910096496 A CN200910096496 A CN 200910096496A CN 101499043 A CN101499043 A CN 101499043A
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Abstract
The invention discloses a single line bus and communication system. A plurality of apparatuses is connected to the single line bus. At least one apparatus is a sender and at least one apparatus is a receiver. A sending step is as follows: the sender (1) detects the single line bus in an idle state; (2) generates a starting signal time sequence; (3) generates a data transmission time sequence, sends data to the single line bus; (4) repeats steps and returns to step (2) if continuously sending data, or sends a stop signal time sequence; a receiving step is as follows: the receiver (1) receives a starting signal time sequence, prepares to receive data; (2) receives the data transmission time sequence and parses data; (3) parse enough data, and compares whether address of the receiver is identical to that in the data, the receives with identical address storing the valid information. The invention realizes inter-communication of any apparatus on the single line bus. The line is simple in structure and time sequence, which is convenient to extend and maintain the bus.
Description
Technical field
The present invention relates to the single bus serial communication protocol.
Background technology
Serial communication protocol commonly used at present mainly contains I
2C bus, spi bus and SCI bus, wherein I
2The C bus is with a clock lines, and a data line serial communicates, and spi bus is then with a clock lines,, a Data In-Line, a DOL Data Output Line serial communicates, and above-mentioned serial communication needs two lines to communicate at least, the timing Design complexity, hardware spending is big, is subject to disturb.
What dallas, u.s.a semiconductor company released the single bus communication protocol employing is that single line is realized bus, but this bus protocol must have the one or more slaves of host computer control on the bus, when this master-slave communication mode causes having only main frame to call out slave, slave just can be replied, can not communicate between each slave, the transmission code rate of this communication protocol is low simultaneously, and transmission speed is slow.
Summary of the invention
The present invention is intended to solve the deficiencies in the prior art, provides a kind of and connects some individual devices by single line, can intercom mutually between each device, and wherein at least one device can send the single-wire bus system of data to one or more devices.
The invention allows for the communication means of single-wire bus system simultaneously.
The invention allows for a kind of sending device simultaneously.
Single-wire bus system comprises single bus and some devices that is connected respectively to single bus, at least one device is as sending device in the described single-wire bus system, send data by single bus, at least one device receives the data on the single bus as receiving device.
Described sending device, comprise a single bus port, switching device and timing sequence generating device, the timing sequence generating device connects the control end of switching device, two conduction terminal of switching device, one end connects the single bus port, and the other end connects first level, the conducting or the shutoff of two conduction terminal of control end control of switching device, described timing sequence generating device gauge tap device produces three kinds of sequential at least on the single bus port: stop signal sequential, start signal sequential, data transmit sequential
Wherein, described stop signal sequential is that the timing sequence generating device stops to control the single bus port by switching device, and the duration is more than or equal to T2;
Wherein, described start signal sequential is that the timing sequence generating device is more than or equal to T1 first level by switching device to single bus port sending duration;
Wherein, described data transmit sequential and are, the timing sequence generating device sends data by switching device to the single bus port, and described data time sequence is the sequential beyond stop signal and the start signal, and described data transmit sequential and follow after described start signal.
Described switching device can be managed for NMOS, and the control end of switching device is the grid of NMOS pipe, and the drain electrode of NMOS pipe connects single bus port, the source ground of NMOS pipe.
Described switching device can also be managed for PMOS, and the control end of switching device is the grid of PMOS pipe, and the drain electrode of PMOS pipe connects the single bus port, and the source electrode of PMOS pipe connects power supply.
Described sending device also comprises the conflict arbitration device, when sending device sends data transmission sequential, detect the voltage on the single bus, judge whether that the voltage that sends with this sending device is consistent, detect when inconsistent, send the stop signal sequential, abandon control the single bus port, do not detect when inconsistent, keep transmit status.
Described receiving device comprises the sequential receiving trap, described sequential receiving trap is when receiving the start signal sequential, carrying out Data Receiving prepares, when receiving data transmission sequential, resolution data, relatively whether the address that comprises in the address of receiving device and the data is consistent, corresponding to receiver preservation in address or processing effective information.
Described sending device also comprises the sequential receiving trap, and sending device is also as receiving device.
The address and the information that comprise one or more devices in the described data.
The single bus communication means is, some devices are connected respectively to single bus, and when once sending, at least one device is as sending device, and at least one device is characterized in that comprising following forwarding step as receiving device:
(1) sending device detects single bus, and when single bus is in the duration for more than or equal to second level of T2 the time, promptly single bus is in idle condition, and sending device is prepared once to send;
(2) sending device produces the start signal sequential;
(3) sending device produces data and transmits sequential;
(4) continue to send data as sending device, then return step (2), otherwise execution in step (5);
(5) sending device sends the stop signal sequential, once sends and finishes;
In the described single bus communication, in the time of need repeatedly sending, repeating step (1)～(5).
Wherein, described stop signal sequential is, it is more than or equal to T2 that sending device stops the control of single bus and duration, during this period if there is not other sending device control single bus, then the single bus generation duration is second level more than or equal to T2, and promptly single bus is in idle condition; Described start signal sequential is, when single bus was in idle condition, the sending device sending duration was that first level more than or equal to T1 is to single bus; Described data transmit sequential, after sending device sends the start signal sequential, send data to single bus, and described data time sequence is the sequential beyond stop signal and the start signal.
Described forwarding step is also to comprise the conflict arbitration step in the process of transmitting: when having a plurality of sending device, the conflict arbitration device of each sending device detects the voltage on the single bus, judge whether that the voltage that sends with this sending device is consistent, detect both when inconsistent, its conflict arbitration device sends the stop signal sequential, this sending device is abandoned the control to single bus, does not detect inconsistent sending device and keeps transmit status.
Described single bus communication means also comprises receiving step, and when once receiving, it comprises the steps:
When (1) receiving device receives the start signal sequential, carry out Data Receiving and prepare;
When (2) receiving device receives data transmission sequential, resolution data;
(3) after receiving device was resolved to enough data, relatively whether the address that comprises in the address of receiving device and the data was consistent, corresponding to receiver preservation in address or processing effective information.
In the described single bus communication, in the time of need repeatedly receiving, repeating step (1)～(3).
Beneficial effect of the present invention is: single-wire bus system and communication means that the present invention proposes are realized based on single bus, any device on the bus all can be used as sending device and sends information to one or more receiving devices, realize each device intercommunication, line construction of the present invention is simple, sequential is simple, and antijamming capability is strong, and hardware spending is few, bus expansion and maintenance are convenient in exploitation easily.
Description of drawings
Fig. 1 is a single-wire bus system synoptic diagram of the present invention
Fig. 2 is the sequential chart of single bus of the present invention in once sending
Fig. 3 is a forwarding step process flow diagram of single bus communication of the present invention
Fig. 4 is a receiving step process flow diagram of single bus communication of the present invention
Embodiment
Below in conjunction with accompanying drawing content of the present invention is further specified.
A kind of single-wire bus system connects two devices: device 1, device 2 on the single bus.What device 1, device 2 may be in the following structures in actual applications is a kind of: (1) as shown in Figure 1, device 1 and device 2 are as sending device and receiving device; (2) device 1 is as sending device and receiving device, and device 2 is only as receiving device; (3) device 1 is only as sending device, and device 2 is only as receiving device, and all at least one device is as sending device in above-mentioned 3 kinds of structures, and at least one device is as receiving device.
Described sending device, comprise a single bus port, switching device and timing sequence generating device 11, timing sequence generating device 11 connects the control end of switching device, device 1 as shown in Figure 1, the switching device of device 2 is the NMOS pipe, timing sequence generating device 11 connects the grid of NMOS pipe, the single bus port connects the drain electrode of NMOS pipe, the source ground of NMOS pipe, it is characterized in that described timing sequence generating device 11 control NMOS pipes produce three kinds of sequential at least on the single bus port: the stop signal sequential, the start signal sequential, data transmit sequential
Wherein, described stop signal sequential is that timing sequence generating device 11 stops to control the single bus port by the NMOS pipe, and the duration is more than or equal to T2;
Wherein, described start signal sequential is that timing sequence generating device 11 is more than or equal to T1 first level by the NMOS pipe to single bus port sending duration;
Wherein, described data transmit sequential and are, timing sequence generating device 11 sends data by the NMOS pipe to the single bus port, and described data time sequence is the sequential beyond stop signal and the start signal, and described data transmit sequential and follow after described start signal.
Accompanying drawing 1 described device 1, device 2 also comprise conflict arbitration device 12, when sending device 1,2 sends data transmission sequential, detect the voltage on the single bus port, judge whether that the voltage that sends with this sending device is consistent, detect when inconsistent, send the stop signal sequential, abandon control the single bus port, do not detect when inconsistent, keep transmit status.
Described receiving device comprises sequential receiving trap 13, described sequential receiving trap 13 is when receiving the start signal sequential, carrying out Data Receiving prepares, when receiving data transmission sequential, resolution data, relatively whether the address that comprises in the address of receiving device and the data is consistent, corresponding to receiver preservation in address or processing effective information.
Because accompanying drawing 1 described device 1, device 2 comprise sequential receiving trap 13, so device 1, device 2 can be used as dispensing device, also can be used as receiving device.
The communication means of single-wire bus system as shown in Figure 1 is, device 1, device 2 are connected respectively to single bus, when once sending, at least one device is as sending device, at least one device in this communication, is a sending device with device 1 as receiving device, device 2 is characterized in that comprising following forwarding step (as shown in Figure 3) for receiving device is that example describes:
(1) sending device (device 1) detects single bus, and when single bus is in the duration for more than or equal to second level of T2 the time, promptly single bus is in idle condition, and sending device (device 1) is prepared once to send;
(2) sending device (device 1) produces the start signal sequential;
(3) sending device (device 1) produces data and transmits sequential;
(4) continue to send data as sending device (device 1), then return step (2), otherwise execution in step (5);
(5) sending device (device 1) sends the stop signal sequential, once sends and finishes;
In the described single bus communication, in the time of need repeatedly sending, repeating step (1)～(5).
Described forwarding step is also to comprise the conflict arbitration step in the process of transmitting: the conflict arbitration device of device 1, device 2 detects the voltage on the single bus, judge whether that the voltage that sends with this sending device is consistent, detect both when inconsistent, its conflict arbitration device sends the stop signal sequential, this sending device is abandoned the control to single bus, does not detect inconsistent sending device and keeps transmit status.
The communication means of single-wire bus system as shown in Figure 1 is, also comprises receiving step, and when once receiving, it comprises the steps (as shown in Figure 4):
(1) receiving device (device 1, device 2) is carried out Data Receiving and is prepared when receiving the start signal sequential;
When (2) receiving device (device 1, device 2) receives data transmission sequential, resolution data;
(3) after receiving device (device 1, device 2) was resolved to enough data, relatively whether the address that comprises in the address of receiving device and the data was consistent, corresponding to receiver preservation in address or processing effective information.
In the described single bus communication, in the time of need repeatedly receiving, repeating step (1)～(3).
When having a plurality of device in the single line communication system, its principle of work is same as above.
What should be understood that is, the foregoing description is just to explanation of the present invention, rather than limitation of the present invention, and any innovation and creation that do not exceed in the connotation scope of the present invention all fall within the protection domain of the present invention.
Claims (12)
1. single-wire bus system, comprise single bus and some devices that is connected respectively to single bus, at least one device sends data as sending device by single bus in the described single-wire bus system, at least one device receives the data on the single bus as receiving device.
2. single-wire bus system as claimed in claim 1, it is characterized in that described sending device, comprise a single bus port, switching device and timing sequence generating device, the timing sequence generating device connects the control end of switching device, two conduction terminal of switching device, one end connects the single bus port, the other end connects first level, the conducting or the shutoff of two conduction terminal of control end control of switching device, described timing sequence generating device gauge tap device produces three kinds of sequential at least on the single bus port: the stop signal sequential, the start signal sequential, data transmit sequential
Wherein, described stop signal sequential is that the timing sequence generating device stops to control the single bus port by switching device, and the duration is more than or equal to T2;
Wherein, described start signal sequential is that the timing sequence generating device is more than or equal to T1 first level by switching device to single bus port sending duration;
Wherein, described data transmit sequential and are, the timing sequence generating device sends data by switching device to the single bus port, and described data time sequence is the sequential beyond stop signal and the start signal, and described data transmit sequential and follow after described start signal.
3. single-wire bus system as claimed in claim 2, it is characterized in that described sending device also comprises the conflict arbitration device, when sending device sends data transmission sequential, detect the voltage on the single bus, judge whether that the voltage that sends with this sending device is consistent, detect when inconsistent, send the stop signal sequential, abandon control, do not detect when inconsistent, keep transmit status the single bus port.
4. single-wire bus system as claimed in claim 1, it is characterized in that described receiving device comprises the sequential receiving trap, described sequential receiving trap is when receiving the start signal sequential, carrying out Data Receiving prepares, when receiving data transmission sequential, resolution data, relatively whether the address that comprises in the address of receiving device and the data is consistent, corresponding to receiver preservation in address or processing effective information.
5. as claim 2 or 3 described single-wire bus systems, it is characterized in that described sending device also comprises the sequential receiving trap, sending device is also as receiving device.
6. the single bus communication means is, some devices are connected respectively to single bus, and when once sending, at least one device is as sending device, and at least one device is characterized in that comprising following forwarding step as receiving device:
(1) sending device detects single bus, and when single bus is in the duration for more than or equal to second level of T2 the time, promptly single bus is in idle condition, and sending device is prepared once to send;
(2) sending device produces the start signal sequential;
(3) sending device produces data and transmits sequential;
(4) continue to send data as sending device, then return step (2), otherwise execution in step (5);
(5) sending device sends the stop signal sequential, once sends and finishes;
In the described single bus communication, in the time of need repeatedly sending, repeating step (1)～(5).
7. single bus communication means as claimed in claim 6 is, it is characterized in that described forwarding step is also to comprise the conflict arbitration step in the process of transmitting: when having a plurality of sending device, the conflict arbitration device of each sending device detects the voltage on the single bus, judge whether that the voltage that sends with this sending device is consistent, detect both when inconsistent, its conflict arbitration device sends the stop signal sequential, this sending device is abandoned the control to single bus, does not detect inconsistent sending device and keeps transmit status.
8. single bus communication means as claimed in claim 6 is characterized in that also comprising receiving step, and when once receiving, it comprises the steps:
When (1) receiving device receives the start signal sequential, carry out Data Receiving and prepare;
When (2) receiving device receives data transmission sequential, resolution data;
(3) after receiving device was resolved to enough data, relatively whether the address that comprises in the address of receiving device and the data was consistent, corresponding to receiver preservation in address or processing effective information.
In the described single bus communication, in the time of need repeatedly receiving, repeating step (1)～(3).
9. as claim 6 or 8 described single bus communication meanss, it is characterized in that described stop signal sequential is, it is more than or equal to T2 that sending device stops the control of single bus and duration, during this period if there is not other sending device control single bus, then the single bus generation duration is second level more than or equal to T2, and promptly single bus is in idle condition; Described start signal sequential is, when single bus was in idle condition, the sending device sending duration was that first level more than or equal to T1 is to single bus; Described data transmit sequential, after sending device sends the start signal sequential, send data to single bus, and described data time sequence is the sequential beyond stop signal and the start signal.
10. sending device, comprise a single bus port, switching device and timing sequence generating device, described timing sequence generating device connects the control end of switching device, two conduction terminal of described switching device, one end connects the single bus port, the other end connects first level, the conducting or the shutoff of two conduction terminal of control end control of switching device, it is characterized in that described timing sequence generating device gauge tap device produces three kinds of sequential at least on the single bus port: the stop signal sequential, the start signal sequential, data transmit sequential
Wherein, described stop signal sequential is that the timing sequence generating device stops to control the single bus port by switching device, and the duration is more than or equal to T2;
Wherein, described start signal sequential is that the timing sequence generating device is more than or equal to T1 first level by switching device to single bus port sending duration;
Wherein, described data transmit sequential and are, the timing sequence generating device sends data by switching device to the single bus port, and described data time sequence is the sequential beyond stop signal and the start signal, and described data transmit sequential and follow after described start signal.
11. sending device as claimed in claim 10, it is characterized in that also comprising the conflict arbitration device, when sending device sends data transmission sequential, detect the voltage on the single bus, judge whether that the voltage that sends with this sending device is consistent, detect when inconsistent, send the stop signal sequential, abandon control, do not detect when inconsistent, keep transmit status the single bus port.
12. as claim 10 or 11 described single-wire bus systems, its feature also comprises the sequential receiving trap at described sending device, sending device is also as receiving device.
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| CNA2009100964966A CN101499043A (en) | 2009-03-12 | 2009-03-12 | Single-wire bus system and communication method |
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| CNA2009100964966A CN101499043A (en) | 2009-03-12 | 2009-03-12 | Single-wire bus system and communication method |
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| CN102968082A (en) * | 2012-11-21 | 2013-03-13 | 成都金亚科技股份有限公司 | Method for realizing single line communication of singlechip |
| CN103425618A (en) * | 2012-05-16 | 2013-12-04 | 立锜科技股份有限公司 | Transmission method of single transmission line |
| CN106802871A (en) * | 2015-11-26 | 2017-06-06 | 新唐科技股份有限公司 | Bus system |
| CN107220198A (en) * | 2017-06-22 | 2017-09-29 | 深圳天珑无线科技有限公司 | Communication terminal and mongline two-way communication system |
| CN107315698A (en) * | 2016-04-27 | 2017-11-03 | 西部数据科技股份有限公司 | From the collision detection of storage facilities |
| CN108287800A (en) * | 2017-12-26 | 2018-07-17 | 北京七芯中创科技有限公司 | A kind of bus arbitration system and method based on single bus communication protocol |
| CN108521854A (en) * | 2017-05-17 | 2018-09-11 | 深圳市大疆创新科技有限公司 | Communication control method, communication master device and communication system |
| CN108536085A (en) * | 2018-04-23 | 2018-09-14 | 北京和利时智能技术有限公司 | A kind of monobus means of communication and system |
| CN108595362A (en) * | 2018-04-20 | 2018-09-28 | 青岛海信电器股份有限公司 | A kind of electronic equipment and the method for operating electronic equipment |
| CN108897712A (en) * | 2018-07-09 | 2018-11-27 | 北京集创北方科技股份有限公司 | Single line transmission method, chip and communication system |
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- 2009-03-12 CN CNA2009100964966A patent/CN101499043A/en active Pending
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| CN103425618A (en) * | 2012-05-16 | 2013-12-04 | 立锜科技股份有限公司 | Transmission method of single transmission line |
| CN102968082A (en) * | 2012-11-21 | 2013-03-13 | 成都金亚科技股份有限公司 | Method for realizing single line communication of singlechip |
| CN106802871A (en) * | 2015-11-26 | 2017-06-06 | 新唐科技股份有限公司 | Bus system |
| KR102075197B1 (en) | 2016-04-27 | 2020-02-07 | 웨스턴 디지털 테크놀로지스, 인코포레이티드 | Collision detection for slave storage devices |
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| KR20170122648A (en) * | 2016-04-27 | 2017-11-06 | 웨스턴 디지털 테크놀로지스, 인코포레이티드 | Collision detection for slave storage devices |
| CN107315698B (en) * | 2016-04-27 | 2020-12-08 | 西部数据技术公司 | Conflict detection from storage devices |
| US10761923B2 (en) | 2016-04-27 | 2020-09-01 | Western Digital Technologies, Inc. | Collision detection for slave storage devices |
| CN108521854A (en) * | 2017-05-17 | 2018-09-11 | 深圳市大疆创新科技有限公司 | Communication control method, communication master device and communication system |
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| CN108287800A (en) * | 2017-12-26 | 2018-07-17 | 北京七芯中创科技有限公司 | A kind of bus arbitration system and method based on single bus communication protocol |
| CN108595362A (en) * | 2018-04-20 | 2018-09-28 | 青岛海信电器股份有限公司 | A kind of electronic equipment and the method for operating electronic equipment |
| CN108536085A (en) * | 2018-04-23 | 2018-09-14 | 北京和利时智能技术有限公司 | A kind of monobus means of communication and system |
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| CN110708137A (en) * | 2018-07-09 | 2020-01-17 | 北京集创北方科技股份有限公司 | Single-wire transmission method, chip and communication system |
| US11403251B2 (en) | 2018-07-09 | 2022-08-02 | Chipone Technology (Beijing) Co., Ltd. | Single-wire transmission method, chip and communication system |
| WO2020010742A1 (en) * | 2018-07-09 | 2020-01-16 | 北京集创北方科技股份有限公司 | Single-line transmission method, chip, and communication system |
| CN110708137B (en) * | 2018-07-09 | 2022-05-20 | 北京集创北方科技股份有限公司 | Single wire transmission method |
| CN108897712A (en) * | 2018-07-09 | 2018-11-27 | 北京集创北方科技股份有限公司 | Single line transmission method, chip and communication system |
| CN109062850B (en) * | 2018-08-09 | 2021-10-15 | 广州麦芮声电子有限公司 | Data sending and receiving method of single chip microcomputer |
| CN109062850A (en) * | 2018-08-09 | 2018-12-21 | 广州麦芮声电子有限公司 | A kind of data transmission and reception method of single-chip microcontroller |
| CN114363106A (en) * | 2020-09-29 | 2022-04-15 | 深圳英集芯科技股份有限公司 | Single-wire communication apparatus, communication system, and single-wire communication method |
| CN111901008A (en) * | 2020-09-29 | 2020-11-06 | 深圳英集芯科技有限公司 | Single-wire communication apparatus, communication system, and single-wire communication method |
| CN114363106B (en) * | 2020-09-29 | 2024-01-05 | 深圳英集芯科技股份有限公司 | Single-wire communication device, communication system, and single-wire communication method |
| CN116578521A (en) * | 2023-07-14 | 2023-08-11 | 深圳中安辰鸿技术有限公司 | Single-bus communication method, device, system and equipment |
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