CN114499756A - Point-to-point Aurora communication system, transmitting and receiving method and application thereof - Google Patents
Point-to-point Aurora communication system, transmitting and receiving method and application thereof Download PDFInfo
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- 238000002360 preparation method Methods 0.000 claims description 4
- 230000007175 bidirectional communication Effects 0.000 abstract description 2
- IYZMXHQDXZKNCY-UHFFFAOYSA-N 1-n,1-n-diphenyl-4-n,4-n-bis[4-(n-phenylanilino)phenyl]benzene-1,4-diamine Chemical group C1=CC=CC=C1N(C=1C=CC(=CC=1)N(C=1C=CC(=CC=1)N(C=1C=CC=CC=1)C=1C=CC=CC=1)C=1C=CC(=CC=1)N(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 IYZMXHQDXZKNCY-UHFFFAOYSA-N 0.000 description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- G—PHYSICS
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- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- H—ELECTRICITY
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/24—Negotiation of communication capabilities
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0096—Channel splitting in point-to-point links
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Abstract
The invention provides a point-to-point Aurora communication system, a sending and receiving method and application thereof, the invention is provided by an Aurora IP core based on Xilinx, the system comprises the Aurora IP core and a user unit module, the Aurora IP core is used for sending data to the user unit module and receiving the data sent by the user unit module, the Aurora IP core is connected with the user unit module through an Aurora receiving and sending control module, and the Aurora receiving and sending control module is used for error retransmission. The system provided by the invention has the advantages of less overall resource consumption, no increase of complexity, improvement of the reliability of bidirectional communication of sending and receiving, and realization of point-to-point high-speed Aurora communication.
Description
Technical Field
The invention belongs to the technical field of Aurora communication, and particularly relates to a point-to-point Aurora communication system, a sending and receiving method and application thereof.
Background
The Aurora communication protocol is an extensible lightweight link layer protocol for moving data between point-to-point serial links, providing a transparent interface for the physical layer, allowing proprietary or industry standard protocol upper layers to conveniently use high-speed transceivers. Although using very few logic resources, the Aurora communication protocol can provide a low latency, high bandwidth, and highly configurable feature set.
The Aurora communication protocol has no error control mechanism, when the channel quality is not good, the error rate is high, system faults are further caused, the error control is to carry out error detection and error correction on the transmitted data signals, and the error control has three modes of automatic error detection and retransmission (ARQ), Forward Error Correction (FEC) and Hybrid Error Correction (HEC).
The FEC and HEC methods consume more resources at high rate, while the existing protocol of arq (automatic Repeat request) method has the highest rate limit, for example, the Serial RapidIO protocol temporarily does not support the line rate of more than 6.25 Gbps.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a point-to-point Aurora communication system, which comprises an Aurora IP core and a user unit module, wherein the Aurora IP core is used for sending data to the user unit module and receiving the data sent by the user unit module;
the Aurora IP core is connected with the user unit module through an Aurora receiving and transmitting control module, and the Aurora receiving and transmitting control module is used for error retransmission.
Specifically, the Aurora IP core sends a received data signal, an indication received data valid byte signal, an indication received frame tail signal, a received data valid signal, a CRC sampling signal, and a CRC detection signal to the Aurora transceiving control module, where the CRC sampling signal is used to sample the CRC detection signal, and the Aurora IP core receives a sent data signal, an indication sent data valid byte signal, an indication sent frame tail signal, and a sent data valid signal sent by the Aurora transceiving control module;
the user unit module sends a data sending signal, a data effective byte sending indication signal, a frame tail sending indication signal and a data effective signal to the Aurora transceiving control module, and receives a data receiving signal, a data effective byte receiving indication signal, a frame tail receiving indication signal and a data effective signal sent by the Aurora transceiving control module.
Furthermore, the Aurora transceiving control module comprises a sending control module, a receiving control module, a sending BRAM and a receiving BRAM, wherein the receiving control module is connected with the sending control module, and is used for transmitting a retransmission signal and a retransmission data packet number to the sending control module;
the sending control module is connected with the sending BRAM, the sending BRAM is used for storing the data sent by the sending control module, and the sending control module can read the data stored by the sending BRAM;
the receiving control module is connected with the receiving BRAM, the receiving BRAM is used for storing the data received by the receiving control module, and the receiving control module can read the data stored by the receiving BRAM;
the sending control module sends an address signal and a read enable signal to the sending BRAM, and the sending control module receives data sent by the sending BRAM; the receiving control module sends an address signal and a read enable signal to the receiving BRAM, and the receiving control module receives data sent by the receiving BRAM.
The invention also discloses a point-to-point Aurora communication sending and receiving method, which uses the point-to-point Aurora communication system,
the point-to-point Aurora communication sending method comprises the following steps:
judging whether a retransmission request exists;
judging whether data to be sent exist or not, if so, judging whether the number of the data packet is completely distributed, and if not, finishing data sending;
and distributing data packet numbers, writing the data frame to be sent into a BRAM (block address register), and sending data.
Specifically, the determining whether there is a retransmission request includes:
if the retransmission request exists, after the data in the BRAM is read and sent, whether the data are to be retransmitted or not is judged;
if no retransmission request exists, whether the data is to be retransmitted or not is directly judged.
The judging whether the data packet numbers are completely distributed comprises the following steps:
if the data packet numbers are distributed completely, discarding the oldest data packet numbers, and distributing the data packet numbers;
and if the data packet number is not distributed completely, directly distributing the data packet number.
The point-to-point Aurora communication receiving method comprises the following steps:
detecting whether CRC errors exist;
judging whether an error frame is to be received or not;
if the error frame is to be received, the data is written into the receiving BRAM to be received, and then the data is received, and if the error frame is not to be received, the data is directly received.
Specifically, the detecting whether there is a CRC error includes:
if CRC errors exist, the data packet numbers are transmitted to a sending controller;
if no CRC error exists, whether an error frame is to be received is judged.
The invention also discloses a transmitting state machine and a receiving state machine, using the system as described above,
the sending state machine comprises an idle state machine, a data sending state machine and a retransmission request state machine, wherein the idle state machine is used for prompting a data preparation signal for the data sending state machine and/or transmitting a retransmission request signal for the retransmission request state machine;
the data sending state machine is used for sending data after receiving a data sending preparation signal of the idle state machine and transmitting a data sending completion signal to the idle state machine;
and the retransmission request state machine is used for prompting the idle state machine that the retransmission request is sent completely after receiving the retransmission request signal transmitted by the idle state machine.
The receiving state machine comprises an idle state machine, a data checking state machine and a retransmission request state machine, wherein the idle state machine is used for prompting a data arrival signal to the data checking state machine;
the data checking state machine is used for detecting whether CRC errors exist in the data after receiving a data arrival signal transmitted by the idle state machine;
if CRC errors exist, transmitting a CRC error signal to the retransmission request state machine, and if CRC errors do not exist, prompting that the idle state machine finishes receiving data and has no CRC errors;
and the retransmission request state machine is used for transmitting a retransmission request signal to the idle state machine after receiving the CRC error signal transmitted by the data check state machine.
The invention has at least the following beneficial effects:
the system provided by the invention improves the reliability of Aurora communication, ensures bidirectional communication between sending and receiving, consumes less resources for communication, and realizes high-speed communication;
furthermore, the system provided by the invention does not increase the overall complexity, and can identify CRC errors and retransmit the errors.
Therefore, the invention provides a point-to-point Aurora communication system, a sending and receiving method and application thereof, and the invention is provided based on the Aurora IP core of Xilinx, thereby improving the communication reliability and realizing the point-to-point high-speed reliable Aurora communication.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a functional block configuration diagram of a point-to-point Aurora communication system according to embodiment 1;
fig. 2 is a schematic flowchart of a point-to-point Aurora communication transmission method according to embodiment 2;
fig. 3 is a schematic flowchart of a point-to-point Aurora communication receiving method according to embodiment 2;
fig. 4 is a schematic structural diagram of a sending state machine provided in embodiment 3;
fig. 5 is a schematic structural diagram of a receiving state machine provided in embodiment 3.
Reference numerals:
300-an idle state machine; 310-a data transmission state machine; 320-request retransmission state machine; 330-data check State machine.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a point-to-point Aurora communication system, which comprises an Aurora IP core and a USER _ MODELE MODULE, wherein the USER _ MODELE MODULE is a USER unit MODULE, and the Aurora IP core is used for sending data to the USER unit MODULE and receiving the data sent by the USER unit MODULE;
the Aurora IP core is connected with the user unit module through an AUR _ CTRL module, and the AUR _ CTRL module is an Aurora receiving and transmitting control module and is used for error retransmission.
The Aurora IP core sends RX _ TDATA signals, RX _ TKEEP signals, RX _ TLAST signals, RX _ TVALID signals, CRC _ VALID signals and CRC _ PASS _ FAIL _ N signals to the Aurora transceiving control module, and the Aurora IP core receives TX _ TDATA signals, TX _ TKEEP signals, TX _ TLAST signals and TX _ TVALID signals sent by the Aurora transceiving control module;
and performing packet check by using a CRC option of a Xilinx Aurora IP core, wherein the CRC _ VALID signal is used for sampling the CRC _ PASS _ FAIL _ N signal when the CRC _ VALID signal is high, the CRC _ PASS _ FAIL _ N signal indicates that the receiving CRC is consistent with the sending CRC when the CRC _ PASS _ FAIL _ N signal is high, and the CRC _ PASS _ FAIL _ N signal indicates that the receiving CRC is inconsistent with the sending CRC when the CRC is low.
The user unit module transmits a TX _ TDATA signal, a TX _ TKEEP signal, a TX _ TLAST signal and a TX _ TVALID signal to the Aurora transceiving control module, and the user unit module receives an RX _ TDATA signal, an RX _ TKEEP signal, an RX _ TLAST signal and an RX _ TVALID signal transmitted by the Aurora transceiving control module.
Specifically, the RX _ TDATA signal is a received data signal, the RX _ TKEEP signal is a signal indicating a received data valid byte, the RX _ TLAST signal is a signal indicating a received frame tail, and the RX _ TVALID signal is a received data valid signal;
the TX _ TDATA signal is a data sending signal, the TX _ TKEEP signal is a signal indicating to send a data valid byte, the TX _ TLAST signal is a signal indicating to send a frame tail, and the TX _ TVALID signal is a signal indicating to send a data valid byte;
the CRC _ VALID signal is a CRC sampling signal, and the CRC _ PASS _ FAIL _ N signal is a CRC detection signal.
It should be noted that, in this embodiment, the RX _ TKEEP signal is all 1 when all bytes are valid.
An Aurora transceiving control module is arranged at the upper layer of the Aurora IP core, and is used for error retransmission and comprises a TX _ CTRL module, an RX _ CTRL module, a TX _ BRAM module and an RX _ BRAM module, wherein the TX _ CTRL module is a sending control module, the RX _ CTRL module is a receiving control module, the TX _ BRAM module is a sending BRAM, the RX _ BRAM module is a receiving BRAM, and the receiving control module is connected with the sending control module and is used for transmitting a retransmission signal and a retransmission packet ID to the sending control module;
the sending control module is connected with the sending BRAM, the sending BRAM is used for storing the data sent by the sending control module, and the sending control module can read the data stored by the sending BRAM;
the receiving control module is connected with the receiving BRAM, the receiving BRAM is used for storing the data received by the receiving control module, and the receiving control module can read the data stored by the receiving BRAM.
The packet ID is a number of a data packet, and for example, when the packet ID is 8 bits wide, the packet ID is allocated from 0 to 255, and when the packet ID is allocated, the allocation is continued from 0.
Specifically, the sending control module sends an address signal and a read enable signal to the sending BRAM, and the sending control module receives data sent by the sending BRAM; the receiving control module sends an address signal and a read enable signal to the receiving BRAM, and the receiving control module receives data sent by the receiving BRAM.
It should be noted that the Aurora IP core is a hard core developed by Xilinx corporation based on Aurora protocol and high-speed serial transceiver socket. The core is embedded in the RockettI/O module, provides a simple user interface, and greatly facilitates signal operability. The complicated control structure in socket I/O can be changed through an IP core user interface. The Aurora IP core mainly comprises a local flow control module, a user data interface, a clock input and clock correction module, a high-speed serial transceiving module, a state information control module and the like.
In this embodiment, two BRAMs are added, and if only 16 packets need to be buffered during transceiving, and the length of each packet is 1KB, only a small number of BRAMs and control logic need to be added to improve the communication reliability.
The BRAM is a Block Memory and is a storage RAM unit of an internal data cache of the FPGA, the BRAM is composed of a certain number of storage blocks with fixed sizes, the BRAM resources do not occupy extra logic resources and are high in speed, and the BRAM resources consumed during use are integral multiples of the Block sizes. The BRAM can be configured as a dual-port RAM and used for realizing internal data caching of the FPGA.
By using the point-to-point Aurora communication system provided by the invention, the resources consumed by communication are less, and meanwhile, the high-speed communication is ensured.
Example 2
Based on the point-to-point Aurora communication system provided by the embodiment of the invention, the invention also provides a point-to-point Aurora communication sending and receiving method, wherein the point-to-point Aurora communication sending method comprises the following steps:
s100: data transmission is started, and the process advances to step S110.
S110: and judging whether the receiving control module has a retransmission request or not.
If an erroneous retransmission is required, there will be a retransmission request.
If there is a retransmission request, go to step S111; if there is no retransmission request, the process goes to step S120.
S111: the data frame in the transmission BRAM corresponding to the retransmission packet number is retransmitted, and the process proceeds to step S120.
S120: and judging whether the sending control module has data to be sent or not.
If the data to be sent exists, the step S130 is entered; if there is no data to be sent, go to step S140.
S130: and judging whether the data packet numbers are distributed completely.
It should be noted that the packet number is a number of a packet, for example, the packet number is 8bit wide, the packet number is allocated from 0 to 255, and if the allocation is completed, the allocation is continued from 0.
If the data packet number is completely allocated, go to step S131; if the packet number is not assigned, go to step S132.
S131: the oldest packet number is discarded, and the process proceeds to step S132.
S132: the packet number is assigned, and the data frame to be transmitted is written in the transmission BRAM, and the process proceeds to step S133.
The data to be sent is written into the sending BRAM, and if the subsequent error needs to be retransmitted, the data written in the step can be read in step S111.
S133: the data transmission proceeds to step S140.
S140: and finishing data transmission.
The point-to-point Aurora communication receiving method provided by the invention comprises the following steps:
s200: data reception is started, and the process advances to step S210.
S210: it is detected whether the received data has a CRC error.
It should be noted that CRC is Cyclic Redundancy Check (Cyclic Redundancy Check), which is a channel coding technique for generating a short fixed bit Check code according to data such as network data packets or computer files, and is mainly used to detect or Check errors that may occur after data transmission or storage, and generally uses the principle of division and remainder to detect errors.
If there is CRC error in the received data, go to step S211; if the received data has no CRC error, go to step S220.
S211: the packet number is transmitted to the transmission controller.
S220: and judging whether an error frame is to be received or not.
If there is an error frame to be received, go to step S221; if there is no error frame to be received, go to step S222.
S221: the process proceeds to step S222.
S222: data reception proceeds to step S230.
S230: the data reception is ended.
Example 3
Based on the point-to-point Aurora communication system and the point-to-point Aurora communication sending and receiving method provided by the embodiment of the invention, the embodiment of the invention also discloses a sending state machine and a receiving state machine, wherein the sending state machine comprises an IDLE state machine 300, an ST _ SEND _ DATA module and an ST _ RETRY module, the ST _ SEND _ DATA module is the DATA sending state machine 310, and the ST _ RETRY module is the request retransmission state machine 320. In the transmit state machine, the request for retransmission state machine 320 is used to implement the receive data request for retransmission state.
The idle state machine 300 is configured to prompt the data sending state machine 310 for a data ready signal and/or to communicate a retransmission request signal to the retransmission request state machine 320;
the data sending state machine 310 is configured to send data after receiving a data sending preparation signal of the idle state machine 300, and transmit a data sending completion signal to the idle state machine 300;
the retransmission request state machine 320 is configured to prompt the idle state machine 300 that the retransmission request is completely sent after receiving the retransmission request signal transmitted by the idle state machine 300.
It should be noted that the data transmission state machine 310 and the retransmission request state machine 320 of the transmitter execute self-loop when not receiving the signal transmitted by the idle state machine 300.
It should be noted that, in this embodiment, the data sent by the data sending state machine 310 is a frame, and a frame of data is a group of continuously sent data, and is composed of a frame header, data content, and a frame trailer.
The receiving state machine comprises an IDLE module, an ST _ SEND _ CHK module and an ST _ RETRY module, wherein the ST _ SEND _ CHK module is a data checking state machine 330. In the receiving state machine, the retransmission request state machine 320 is used to implement the retransmission request state for the received erroneous data, and the data check state machine 330 is used to implement the received data check state.
The idle state machine 300 is used to prompt the data check state machine 330 for a data arrival signal;
the data check state machine 330 is configured to detect whether a CRC error exists in the data after receiving the data arrival signal transmitted by the idle state machine 300, transmit a CRC error signal to the retransmission request state machine 320 if the CRC error exists, and prompt the idle state machine 300 that the data reception is completed and there is no CRC error if the CRC error does not exist;
the retransmission request state machine 320 is configured to deliver a retransmission request signal to the idle state machine 300 after receiving the CRC error signal delivered by the data check state machine 330.
It should be noted that the data check state machine 330 of the receiver performs self-loop when the signal transmitted by the idle state machine 300 is not received.
In summary, the present invention provides a point-to-point Aurora communication system, a sending and receiving method and an application thereof, which is proposed based on the Aurora IP core of Xilinx, and can improve the communication reliability only by adding a small amount of BRAMs and control logic, thereby realizing point-to-point high-speed Aurora reliable communication.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A point-to-point Aurora communication system is characterized by comprising an Aurora IP core and a user unit module, wherein the Aurora IP core is used for sending data to the user unit module and receiving the data sent by the user unit module;
the Aurora IP core is connected with the user unit module through an Aurora receiving and transmitting control module, and the Aurora receiving and transmitting control module is used for error retransmission.
2. The point-to-point Aurora communication system according to claim 1, wherein the Aurora IP core transmits a received data signal, a valid byte signal indicating received data, a frame tail signal indicating received, a valid signal receiving data, a CRC sampling signal, and a CRC detection signal to the Aurora transceiving control module, the CRC sampling signal is used for sampling the CRC detection signal, and the Aurora IP core receives a transmitted data signal, a valid byte signal indicating transmitted data, a frame tail signal indicating transmitted, and a valid signal transmitting data transmitted from the Aurora transceiving control module;
the user unit module sends a data sending signal, a data effective byte sending indication signal, a frame tail sending indication signal and a data effective signal to the Aurora transceiving control module, and receives a data receiving signal, a data effective byte receiving indication signal, a frame tail receiving indication signal and a data effective signal sent by the Aurora transceiving control module.
3. The ad-hoc Aurora communication system according to any one of claims 1 or 2, wherein the Aurora transceiving control module comprises a transmission control module, a reception control module, a transmission BRAM and a reception BRAM, the reception control module is connected to the transmission control module, and the reception control module is used for transmitting a retransmission signal and a retransmission packet number to the transmission control module;
the sending control module is connected with the sending BRAM, the sending BRAM is used for storing the data sent by the sending control module, and the sending control module can read the data stored by the sending BRAM;
the receiving control module is connected with the receiving BRAM, the receiving BRAM is used for storing the data received by the receiving control module, and the receiving control module can read the data stored by the receiving BRAM;
the sending control module sends an address signal and a read enable signal to the sending BRAM, and the sending control module receives data sent by the sending BRAM; the receiving control module sends an address signal and a read enable signal to the receiving BRAM, and the receiving control module receives data sent by the receiving BRAM.
4. A point-to-point Aurora communication transmission method, characterized in that the system according to any one of claims 1-3 is used, the Aurora transceiving control module comprises a transmission control module, a receiving control module and a transmission BRAM, the receiving control module is connected with the transmission control module, and the receiving control module is used for transmitting retransmission signals and retransmission data packet numbers to the transmission control module;
the sending control module is connected with the sending BRAM, the sending BRAM is used for storing the data sent by the sending control module, and the sending control module can read the data stored by the sending BRAM;
the method comprises the following steps:
judging whether the receiving control module has a retransmission request or not;
judging whether the sending control module has data to be sent or not, if so, judging whether the data packet number is completely distributed or not, and if not, ending the data sending;
and allocating a data packet number, writing a data frame to be sent into a sending BRAM, and sending data.
5. The method as claimed in claim 2, wherein the determining whether there is a retransmission request comprises:
if the retransmission request exists, after the data in the BRAM is read and sent, whether the data are to be retransmitted or not is judged;
if no retransmission request exists, whether the data is to be retransmitted or not is directly judged.
6. The method as claimed in claim 2, wherein said determining whether the packet number is completely allocated comprises:
if the data packet numbers are distributed completely, discarding the oldest data packet numbers, and distributing the data packet numbers;
and if the data packet number is not distributed completely, directly distributing the data packet number.
7. A point-to-point Aurora communication receiving method, characterized in that, the system according to any one of claims 1-3 is used, the Aurora transceiving control module comprises a sending control module, a receiving control module and a receiving BRAM, the receiving control module is connected with the sending control module, and the receiving control module is used for transmitting a retransmission signal and a retransmission ID to the sending control module;
the receiving control module is connected with the receiving BRAM, the receiving BRAM is used for storing the data received by the receiving control module, and the receiving control module can read the data stored by the receiving BRAM;
the method comprises the following steps:
detecting whether the received data has CRC errors;
judging whether an error frame is to be received or not;
if the error frame is to be received, the data is written into the receiving BRAM to be received, and then the data is received, and if the error frame is not to be received, the data is directly received.
8. The method for receiving peer-to-peer Aurora communication according to claim 5, wherein said detecting whether the received data has a CRC error comprises:
if the received data has CRC errors, transmitting the data packet number to a sending controller;
if the received data has no CRC error, whether an error frame is to be received is judged.
9. A transmission state machine, characterized in that a system according to any of claims 1-3 is used, said transmission state machine comprising an idle state machine, a data transmission state machine and a retransmission request state machine, said idle state machine being adapted to prompt said data transmission state machine for a data ready signal and/or to communicate a retransmission request signal to said retransmission request state machine;
the data sending state machine is used for sending data after receiving a data sending preparation signal of the idle state machine and transmitting a data sending completion signal to the idle state machine;
and the retransmission request state machine is used for prompting the idle state machine that the retransmission request is sent completely after receiving the retransmission request signal transmitted by the idle state machine.
10. A receiving state machine, characterised in that a system according to any of claims 1-3 is used, said receiving state machine comprising an idle state machine, a data checking state machine and a request for retransmission state machine, said idle state machine being adapted to signal to said data checking state machine that data is arriving;
the data checking state machine is used for detecting whether CRC errors exist in the data after receiving a data arrival signal transmitted by the idle state machine;
if CRC errors exist, transmitting a CRC error signal to the retransmission request state machine, and if CRC errors do not exist, prompting that the idle state machine finishes receiving data and has no CRC errors;
and the retransmission request state machine is used for transmitting a retransmission request signal to the idle state machine after receiving the CRC error signal transmitted by the data check state machine.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115543908A (en) * | 2022-11-28 | 2022-12-30 | 成都航天通信设备有限责任公司 | Aurora bus data interaction system and method based on FPGA |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1755251A2 (en) * | 2005-08-19 | 2007-02-21 | Samsung Electronics Co.,Ltd. | Method and apparatus for controlling reliability of feedback signal in a mobile communication system supporting HARQ |
| WO2020015201A1 (en) * | 2018-07-14 | 2020-01-23 | 苏州大学张家港工业技术研究院 | Single chip onu of fpga transceiver facing multi-application pon |
| CN111030747A (en) * | 2019-11-22 | 2020-04-17 | 中国科学院国家空间科学中心 | FPGA-based SpaceFibre node IP core |
| CN112084137A (en) * | 2020-08-20 | 2020-12-15 | 南京航空航天大学 | SerDes high-robustness transceiver circuit |
| CN112118042A (en) * | 2020-09-16 | 2020-12-22 | 西安空间无线电技术研究所 | Data transmission method and device based on satellite-borne optical fiber interface |
-
2022
- 2022-01-05 CN CN202210011074.XA patent/CN114499756A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1755251A2 (en) * | 2005-08-19 | 2007-02-21 | Samsung Electronics Co.,Ltd. | Method and apparatus for controlling reliability of feedback signal in a mobile communication system supporting HARQ |
| WO2020015201A1 (en) * | 2018-07-14 | 2020-01-23 | 苏州大学张家港工业技术研究院 | Single chip onu of fpga transceiver facing multi-application pon |
| CN111030747A (en) * | 2019-11-22 | 2020-04-17 | 中国科学院国家空间科学中心 | FPGA-based SpaceFibre node IP core |
| CN112084137A (en) * | 2020-08-20 | 2020-12-15 | 南京航空航天大学 | SerDes high-robustness transceiver circuit |
| CN112118042A (en) * | 2020-09-16 | 2020-12-22 | 西安空间无线电技术研究所 | Data transmission method and device based on satellite-borne optical fiber interface |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115543908A (en) * | 2022-11-28 | 2022-12-30 | 成都航天通信设备有限责任公司 | Aurora bus data interaction system and method based on FPGA |
| CN115543908B (en) * | 2022-11-28 | 2023-03-28 | 成都航天通信设备有限责任公司 | Aurora bus data interaction system based on FPGA |
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