CN104484294A - User-defined gtx serial data transmission method - Google Patents
User-defined gtx serial data transmission method Download PDFInfo
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- CN104484294A CN104484294A CN201410656702.5A CN201410656702A CN104484294A CN 104484294 A CN104484294 A CN 104484294A CN 201410656702 A CN201410656702 A CN 201410656702A CN 104484294 A CN104484294 A CN 104484294A
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- gtx
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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
- G06F13/42—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
-
- 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
- G06F13/4072—Drivers or receivers
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Communication Control (AREA)
Abstract
The invention discloses a user-defined GTX serial data transmission method. The user-defined GTX serial data transmission method includes the following steps of (1) controlling a GTX line rate to be 2.4Gbps; (2) controlling a line coding manner to be 8B/10B; (3) setting a data receiving format of a receiver or an emitter in a manner that an actual rate is 10M*(8bits*48 bytes)=1.92Gbps, a K character comprises two bytes: 1C00, and the transmission time is completion of 48-byte parameter transmission in 100ns; (4) setting a data sending format of the receiver in a manner that the actual rate is 40M*48bits (K character + I data + Q data)= 1.92Gbps, wherein the K character, the I data, and the Q data are all in 16-bit width, the K character comprises two bytes: BC00. The user-defined GTX serial data transmission method has the advantages that under the condition of unchanged hardware, interface upgrade is achieved through software, and real-time and universal performances are good; the user-defined GTX serial data transmission method is applicable to a 12-channel radio frequency receiving module and capable of achieving stable transmission of 12-channel data and meeting the requirement of in-phase/quadrature (I/Q) data synthesis, and indexes of the whole machine meet requirements after use.
Description
Technical field
The present invention relates to a kind of self-defined GTX serial data transmission method.
Background technology
In the market for the low frequency interface of Receiver And Transmitter, discrete I/O mouth is mainly used to carry out designing, such data line is too much, interface volume is very large, speed can not design get Tai Gao (because data line length is different, data delay is different, and LVTTL level exists the problems such as overshoot).Meanwhile, as long as relate to the change of portal contents at every turn, all must carry out the change of hardware, the versatility of interface is very poor.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of and complete interface upgrade when hardware is constant by software, real-time and the good self-defined GTX serial data transmission method of versatility.
The object of the invention is to be achieved through the following technical solutions: self-defined GTX serial data transmission method, comprises the following steps:
(1) control GTX line speed is 2.4Gbps;
(2) operation circuit coded system is 8B/10B;
(3) the reception data layout of receiver or transmitter:
Actual speed rate: 10M × (8bits × 48 byte)=1.92Gbps;
K character is two byte: 1C00;
Transmission time: 100ns completes the parameter transmission of 48 bytes;
(4) the transmission data layout of receiver:
Actual speed rate: 40M × 48bits (K character+I datum+Q data)=1.92Gbps, K character, I datum, Q data are all 16 bit widths;
K character is two byte: BC00.
The invention has the beneficial effects as follows: when hardware is constant, interface upgrade can be completed by software, real-time and versatility good; Can be applicable to 12 road Receiver Modules, and realize the transmission of 12 stable circuit-switched data, meet the requirement of I/Q Data Synthesis, complete machine is by using, and index meets the requirements.
Accompanying drawing explanation
Fig. 1 is inventive receiver, transmitter receives data layout schematic diagram;
Fig. 2 is the I/Q data transmission format schematic diagram that inventive receiver exports;
Fig. 3 is the structured flowchart that the present invention is applied to 12 road Receiver Modules.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
Self-defined GTX serial data transmission method, comprises the following steps:
(1) control GTX line speed is 2.4Gbps;
(2) operation circuit coded system is 8B/10B;
(3) the reception data layout of receiver or transmitter is as shown in Figure 1:
Actual speed rate: 10M × (8bits × 48 byte)=1.92Gbps;
K character is two byte: 1C00;
Transmission time: 100ns completes the parameter transmission of 48 bytes, and in figure, the information such as transmission frequency code, DS code, uses to multiple correlator;
(4) the transmission data layout of receiver is as shown in Figure 2:
Actual speed rate: 40M × 48bits (K character+I datum+Q data)=1.92Gbps, K character, I datum, Q data are all 16 bit widths;
K character is two byte: BC00.
As shown in Figure 3, the principle of work of 12 road Receiver Modules is as follows:
12 road Receiver Modules directly gather the L-band signal of 950MHz ~ 1200MHz, then, the i/q signal of 40M is generated afterwards by digital mixing, filtering, extraction, the standardization of data is carried out by self-defined GTX serial data transport protocol, then, output to the process such as digital signal processing module is weighted, synthesis, export the data-signal needed.During transmission, GTX module is according to combination of protocols i/q signal, and the serial data generating 2.4G sends to digital signal processing module; During reception, GTX module receives the weighting parameters that digital signal processing module sends.
The above is only the preferred embodiment of the present invention, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (1)
1. self-defined GTX serial data transmission method, is characterized in that: comprise the following steps:
(1) control GTX line speed is 2.4Gbps;
(2) operation circuit coded system is 8B/10B;
(3) the reception data layout of receiver or transmitter:
Actual speed rate: 10M × (8bits × 48 byte)=1.92Gbps;
K character is two byte: 1C00;
Transmission time: 100ns completes the parameter transmission of 48 bytes;
(4) the transmission data layout of receiver:
Actual speed rate: 40M × 48bits (K character+I datum+Q data)=1.92Gbps, K character, I datum, Q data are all 16 bit widths;
K character is two byte: BC00.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410656702.5A CN104484294A (en) | 2014-11-18 | 2014-11-18 | User-defined gtx serial data transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410656702.5A CN104484294A (en) | 2014-11-18 | 2014-11-18 | User-defined gtx serial data transmission method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104484294A true CN104484294A (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410656702.5A Pending CN104484294A (en) | 2014-11-18 | 2014-11-18 | User-defined gtx serial data transmission method |
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| CN (1) | CN104484294A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631636A (en) * | 2020-12-25 | 2021-04-09 | 成都九洲迪飞科技有限责任公司 | FPGA (field programmable Gate array) online upgrading method based on GTX (Gate Bipolar translator) and FPGA product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100080248A1 (en) * | 2008-10-01 | 2010-04-01 | Nortel Networks Limited | Techniques for time transfer via signal encoding |
| CN102523142A (en) * | 2011-11-28 | 2012-06-27 | 曙光信息产业(北京)有限公司 | GTX (Gigabit texture per second)-based 20-port gigabit Ethernet access system and method |
| CN104063342A (en) * | 2014-05-30 | 2014-09-24 | 中国电子科技集团公司第十研究所 | IP core based on JESD 204 protocol |
-
2014
- 2014-11-18 CN CN201410656702.5A patent/CN104484294A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100080248A1 (en) * | 2008-10-01 | 2010-04-01 | Nortel Networks Limited | Techniques for time transfer via signal encoding |
| CN102523142A (en) * | 2011-11-28 | 2012-06-27 | 曙光信息产业(北京)有限公司 | GTX (Gigabit texture per second)-based 20-port gigabit Ethernet access system and method |
| CN104063342A (en) * | 2014-05-30 | 2014-09-24 | 中国电子科技集团公司第十研究所 | IP core based on JESD 204 protocol |
Non-Patent Citations (1)
| Title |
|---|
| 李坤，朱红: "virtex-6 GTX高速串行传输原理与仿真", 《大众科技》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631636A (en) * | 2020-12-25 | 2021-04-09 | 成都九洲迪飞科技有限责任公司 | FPGA (field programmable Gate array) online upgrading method based on GTX (Gate Bipolar translator) and FPGA product |
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Application publication date: 20150401 |
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| RJ01 | Rejection of invention patent application after publication |