CN111262666B - Method and system for testing SERDES single-particle function interruption section - Google Patents
Method and system for testing SERDES single-particle function interruption section Download PDFInfo
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Abstract
A method and a system for testing SERDES single-particle function interruption cross section are provided, the method comprises: s1: controlling the tested SERDES to operate in a near-end loopback mode, irradiating the tested SERDES by high-energy particles and counting the total fluence Q; s2: if Q reaches the preset value, turning to S9, and turning to S3; s3: closing the PRBS generator and the PRBS detector, transmitting the COMMA code and opening word boundary alignment; s4: waiting for T time, detecting whether word boundary alignment is completed or not, completing conversion to S5, and increasing the K value by 1 to S8 if the word boundary alignment is not completed; s5: stopping transmitting the COMMA code, closing word boundary alignment, and generating and detecting a PRBS code of a specified code pattern; s6: opening word boundary alignment; s7: waiting for T time, detecting whether word boundary alignment is completed or not, not completing to convert to S2, and increasing the K value by 1 to convert to S8 when the word boundary alignment is completed; s8: restarting the tested SERDES to operate in a near-end loopback mode, and turning to S2; s9: and stopping irradiation, and calculating the single-particle functional interruption section C = K/Q. The system is used for implementing the method. The method has the advantages of simple principle, easy realization, capability of improving the accuracy of SERDES single-event function interruption test and the like.
Description
Technical Field
The invention mainly relates to the technical field of single event effect testing, in particular to a method and a system for testing an SERDES single event function interruption section.
Background
With the demand for higher data transmission rates for mass data transmission, SERDES (SERializer/DESerializer) has become the mainstream of high-speed data transmission. In the SERDES, a serializer at a transmitting end converts parallel data to be transmitted into high-speed serial data and transmits the high-speed serial data to a channel, and a deserializer at a receiving end receives the high-speed serial data from the channel and converts the high-speed serial data into the parallel data to be output. SERDES applied to severe radiation environments such as aviation and aerospace are easily affected by Single-Event Upset (SEU) and Single-Event function interruption (SEFI) to cause errors, and cause immeasurable loss.
The SEU has the influence on the SERDES that error codes are generated in transmitted data, the error rate of data transmission can be increased, and the loss of connection of a transmission link cannot be caused; while the SEFI causes a great amount of errors in the data transmission of the SERDES, the effective data cannot be transmitted, even the loss of the transmission link is caused, and the SERDES can be recovered only by restarting. Therefore, it is important to accurately test the sensitivity of SERDES to SEFI.
The sensitivity of the SERDES to SEFI is generally expressed in terms of a single event functional interrupt cross section. The single-particle function interruption section C refers to the area of a region where the SERDES can generate SEFI under the bombardment of high-Energy particles with certain LET (Linear Energy Transfer, energy Transfer Linear density), the total fluence of the high-Energy particles (namely the number of the high-Energy particles bombarded to a microelectronic device in unit area) is set to be Q, and the number of the SEFI generated by the SERDES under the bombardment of the high-Energy particles is K, so that C = K/Q. The high energy particles are typically generated using a high energy particle accelerator.
At present, no report is available for a method for testing the SERDES single-particle function interruption section. The aerospace industry standard of the people's republic of China (QJ 10005-2008 semiconductor device heavy ion single event effect test guideline) defines a method for testing the SEU section of a semiconductor device for aerospace, and the SEU number is tested to calculate the SEU section. Because the SEFI generated by the SERDES once can cause a great amount of overturn of the transmitted data, the serious overestimation of the SEFI section can be caused by calculating the SEFI section by testing the overturn number of the transmitted data, and the sensitivity of the SERDES to the SEFI cannot be accurately evaluated.
The near end loopback mode is a common self-test mode for SERDES. When the SERDES is configured to the near-end loopback mode, the high-speed serial data sent by the serializer of the sending end is directly sent back to the deserializer of the sending end for testing whether the data serialization and deserialization functions are normal.
The PRBS (Pseudo-Random Binary Sequence) is common test data for the SERDES, and includes code patterns of PRBS7, PRBS15, PRBS23, and PRBS 31. SERDES typically has a PRBS generator and a PRBS detector built in. When PRBS generation and detection are carried out, a PRBS generator at a sending end continuously and circularly generates PRBS code parallel data of a specified code pattern and sends the PRBS code parallel data to a channel in a serialization way, a deserializer at a receiving end deserializes the PRBS code and then sends the parallel data to a PRBS detector, and the PRBS detector detects whether the received data conforms to the specified PRBS code pattern or not and counts the number of error codes, so that the functional performance of the SERDES is tested.
The COMMA code is a multi-word boundary identification code which needs to be inserted when the SERDES performs data transmission. When the deserializer of the SERDES deserializes the continuous high-speed serial data into multi-word parallel data, the start bits of the words of the parallel data at the sending end cannot be identified, so that the COMMA code is added into the parallel data sent by the sending end, and after the deserializer at the receiving end detects the COMMA code, the start bits of the words can be identified and correctly arranged, and the output of the parallel data is ensured to be correct. Typically SERDES will have built in word boundary alignment functionality based on COMMA detection and output an indication of whether word boundary alignment is complete.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the technical problems in the prior art, the invention provides the SERDES single-particle function interruption cross section testing method and the SERDES single-particle function interruption cross section testing system which are simple in principle, easy to implement and capable of improving the single-particle function interruption testing accuracy.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for testing the interruption section of a SERDES single-particle function comprises the following steps:
step S1: controlling the tested SERDES to operate in a near-end loopback mode, initializing an SEFI counting variable K to be 0, irradiating the tested SERDES by high-energy particles according to the fluence rate P and starting to count the total fluence Q;
step S2: if the total fluence Q of the high-energy particles reaches a preset value, and the preset value meets the requirement of the preset value on the total fluence of the high-energy particles, turning to the step S9, otherwise, turning to the step S3;
and step S3: controlling the tested SERDES to close the PRBS generator and the PRBS detector, transmitting a COMMA code and starting a word boundary alignment function;
and step S4: waiting for T time, detecting whether the detected SERDES indicates that word boundary alignment is completed or not, if the detected SERDES indicates that word boundary alignment is not completed, increasing the K value by 1, and turning to the step S8; if the tested SERDES indicates that word boundary alignment is completed, turning to step S5;
step S5: configuring a tested SERDES to stop transmitting a COMMA code, closing a word boundary alignment function, and generating and detecting a PRBS code of a specified code pattern;
step S6: configuring a tested SERDES to start a word boundary alignment function;
step S7: waiting for T time, detecting whether the detected SERDES indicates completion of word boundary alignment, if the detected SERDES indicates completion of word boundary alignment, increasing the K value by 1, and turning to the step S8; if the detected SERDES indicates that the word boundary alignment is not completed, turning to step S2;
step S8: restarting the tested SERDES, controlling the tested SERDES to operate in a near-end loopback mode, and turning to the step S2;
step S9: and stopping the irradiation of the high-energy particles, and calculating the single-particle function interruption section of the detected SERDES.
As a further improvement of the process of the invention: in the step S1, the constraint P × T <1,T is the longest time taken for the measured SERDES to start transmitting the COMMA code under normal operating conditions until the word boundary alignment is completed.
As a further improvement of the process of the invention: in the step S9, the single-event function interruption section C = K/Q of the measured SERDES is calculated.
As a further improvement of the process of the invention: 9000 particles cm in the step S1 are prepared by using high-energy particles -2 s -1 The fluence rate of (a) irradiates the measured SERDES and starts to count the total fluence Q.
The invention further provides a system for testing the SERDES single-event function interruption cross section, which is connected with the tested SERDES and comprises:
the resetting and starting unit is used for controlling the resetting and starting of the tested SERDES;
the first configuration unit is used for controlling the tested SERDES to be configured into a near-end loopback mode;
the second configuration unit is used for configuring the PRBS generator of the detected SERDES to generate a PRBS code of a specified code pattern, configuring the PRBS detector of the detected SERDES to detect the PRBS code of the specified code pattern, and configuring the detected SERDES to transmit a COMMA code;
the detection unit is used for detecting whether the detected SERDES completes the indication of word boundary alignment or not;
and the computing unit is used for performing variable operation, logic judgment and computation and counting the number of single event functional interrupts.
As a further improvement of the invention: and the timing unit is used for calculating the waiting T time.
As a further improvement of the invention: the designated code pattern of the PRBS code includes but is not limited to PRBS7, PRBS15, PRBS23 and PRBS31 code patterns, but does not contain code patterns which can complete word boundary alignment.
Compared with the prior art, the invention has the advantages that:
1. according to the method and the system for testing the SERDES single-particle function interruption section, the word boundary alignment function and the PRBS generation detection function are dynamically switched, so that a large number of error codes caused by SEFI can be detected through word boundary alignment failure, interference of SEU on the SEFI test is eliminated, the SERDES function errors caused by SEFI can be found through no change of word boundary alignment indication, and the accuracy of the SERDES single-particle function interruption test is improved.
2. The method and the system for testing the SERDES single-particle function interruption section eliminate the possibility of generating SEFI for multiple times in one function switching period by matching the fluence rate of high-energy particles with the function switching period, and further improve the accuracy of the SERDES single-particle function interruption test.
Drawings
FIG. 1 is a schematic flow chart of the test method of the present invention.
FIG. 2 is a schematic diagram of a test system according to an embodiment of the present invention.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
As shown in fig. 1, the method for testing the SERDES single-event functional interrupt cross section of the present invention includes:
step S1: and controlling the tested SERDES to operate in a near-end loopback mode, initializing an SEFI counting variable K to be 0, irradiating the tested SERDES by using high-energy particles according to the fluence rate P and starting to count the total fluence Q.
In a specific application example, the constraint P × T <1,T is the maximum time it takes for the measured SERDES to start transmitting COMMA codes under normal operating conditions until word boundary alignment is completed.
Step S2: and (5) if the total fluence Q of the high-energy particles reaches a preset value, and the preset value meets the requirement of the QJ10005-2008 on the total fluence of the high-energy particles, turning to the step S9, otherwise, turning to the step S3.
And step S3: and controlling the tested SERDES to turn off the PRBS generator and the PRBS detector, transmitting the COMMA code and turning on a word boundary alignment function.
And step S4: waiting for T time, detecting whether the detected SERDES indicates that word boundary alignment is completed or not, if the detected SERDES indicates that word boundary alignment is not completed, increasing the K value by 1, and turning to the step S8; if the tested SERDES indicates that word boundary alignment is completed, go to step S5.
Step S5: and configuring the tested SERDES to stop transmitting the COMMA code, closing the word boundary alignment function, and generating and detecting the PRBS code of the specified code pattern.
Step S6: the tested SERDES is configured to start a word alignment function.
Step S7: waiting for T time, detecting whether the detected SERDES indicates completion of word boundary alignment, if the detected SERDES indicates completion of word boundary alignment, increasing the K value by 1, and turning to the step S8; and if the tested SERDES indicates that word boundary alignment is not completed, turning to step S2.
Step S8: and restarting the tested SERDES, controlling the tested SERDES to operate in a near-end loopback mode, and turning to the step S2.
Step S9: stopping high-energy particle irradiation, and calculating the single-particle function interruption section C = K/Q of the tested SERDES.
The tested SERDES has a near-end loopback mode, can transmit a COMMA code, is internally provided with a word boundary alignment function based on COMMA detection and can be configured to be turned on or turned off, can output an indication whether the word boundary alignment is completed, is internally provided with a PRBS generator and a PRBS detector and can be configured to be turned on or turned off, and is connected with a single event function interrupt test system. As shown in fig. 2, the present invention further provides a system for testing a SERDES single-event functional interrupt cross section, wherein the system is connected to a tested SERDES, and comprises:
the resetting and starting unit is used for controlling the resetting and starting of the tested SERDES;
the first configuration unit is used for controlling the configuration of the tested SERDES to be in a near-end loopback mode;
the second configuration unit is used for configuring the PRBS generator of the detected SERDES to generate a PRBS code of a specified code pattern, configuring the PRBS detector of the detected SERDES to detect the PRBS code of the specified code pattern, and configuring the detected SERDES to transmit a COMMA code;
the detection unit is used for detecting whether the detected SERDES completes the indication of word boundary alignment or not;
and the computing unit is used for performing variable operation, logic judgment and computation and counting the number of single event functional interrupts.
In a specific application example, the system further comprises a timing unit for calculating the waiting T time.
In a specific application example, the specified code pattern of the PRBS code includes, but is not limited to, the PRBS7, PRBS15, PRBS23, and PRBS31 code patterns, but does not include a code pattern that can perform word alignment.
In a specific application example, the single-event functional interrupt test is carried out on a certain type of SERDES. The SERDES can be configured in a near-end loop-back mode, can transmit COMMA codes '1111100 XXX' (XXX is three-bit arbitrary binary number), is internally provided with a word boundary alignment function based on the COMMA detection and can be configured to be turned on or turned off, can output an indication whether the word boundary alignment is completed, and is internally provided with a PRBS generator and a PRBS detector supporting a PRBS7 code type and can be configured to be turned on or turned off. The maximum time it takes for the SERDES to start transmitting the above COMMA code under normal operating conditions until word boundary alignment is completed is 100 microseconds.
The specific implementation steps are as follows:
firstly, a single-event functional interrupt test system is constructed. The single-particle functional interruption test system consists of the PPGA and auxiliary components thereof. The FPGA is connected with the SERDES to be tested, can control the reset and start of the SERDES to be tested, can control the SERDES to be configured into a near-end loopback mode, can configure a PRBS generator of the SERDES to be tested to generate a PRBS7 code, can configure a PRBS detector of the SERDES to be tested to detect the PRBS7 code, can configure the SERDES to be tested to transmit a COMMA code '1111100 XXX', can detect whether the SERDES to be tested finishes word boundary alignment indication, can perform variable operation, logic judgment and calculation, counts the number of single-event function interrupts, and can perform timing.
Secondly, the FPGA controls the tested SERDES to operate in a near-end loopback mode, the SEFI counting variable K is initialized to be 0, and 9000 particles cm are measured by using high-energy particles -2 s -1 The fluence rate of (a) irradiates the measured SERDES and starts to count the total fluence Q.
The third step: if the total fluence of the high-energy particles Q reaches 10 7 Particle per cm -2 And if not, turning to the fourth step.
And fourthly, controlling the tested SERDES to close the PRBS generator and the PRBS detector by the FPGA, transmitting the COMMA code and starting a word boundary alignment function.
The fifth step: waiting for 100 microseconds, detecting whether the detected SERDES indicates that word boundary alignment is completed or not by the FPGA, if the detected SERDES indicates that word boundary alignment is not completed, increasing the K value by 1, and turning to the ninth step; and if the tested SERDES indicates that word boundary alignment is completed, the sixth step is carried out.
And sixthly, the FPGA configures the tested SERDES to stop transmitting the COMMA code, closes the word boundary alignment function, and generates and detects the PRBS7 code.
The seventh step: and the FPGA configures the tested SERDES to start a word boundary alignment function.
Eighthly, waiting for 100 microseconds, detecting whether the detected SERDES indicates that word boundary alignment is finished or not by the FPGA, increasing the K value by 1 if the detected SERDES indicates that the word boundary alignment is finished, and turning to the ninth step; if the detected SERDES indicates that the word boundary alignment is not completed, go to the third step.
The ninth step: and restarting the tested SERDES by the FPGA, controlling the tested SERDES to operate in a near-end loopback mode, and turning to the third step.
And step ten, stopping irradiation of the high-energy particles, and calculating the single-particle function interruption section C = K/Q of the detected SERDES.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention may be apparent to those skilled in the relevant art and are intended to be within the scope of the present invention.
Claims (7)
1. A method for testing the interruption section of a SERDES single-particle function is characterized by comprising the following steps:
step S1: controlling the tested SERDES to operate in a near-end loopback mode, initializing an SEFI counting variable K to be 0, irradiating the tested SERDES by high-energy particles according to the fluence rate P and starting to count the total fluence Q;
step S2: if the total fluence Q of the high-energy particles reaches a preset value, and the preset value meets the requirement of the preset value on the total fluence of the high-energy particles, turning to the step S9, otherwise, turning to the step S3;
and step S3: controlling the tested SERDES to close the PRBS generator and the PRBS detector, transmitting a COMMA code and starting a word boundary alignment function;
and step S4: waiting for T time, detecting whether the detected SERDES indicates that word boundary alignment is completed or not, if the detected SERDES indicates that word boundary alignment is not completed, increasing the K value by 1, and turning to the step S8; if the tested SERDES indicates that the word boundary alignment is completed, turning to step S5;
step S5: configuring a tested SERDES to stop transmitting a COMMA code, closing a word boundary alignment function, and generating and detecting a PRBS code of a specified code pattern;
step S6: configuring a tested SERDES to start a word boundary alignment function;
step S7: waiting for T time, detecting whether the detected SERDES indicates completion of word boundary alignment, if the detected SERDES indicates completion of word boundary alignment, increasing the K value by 1, and turning to the step S8; if the detected SERDES indicates that the word boundary alignment is not completed, turning to step S2;
step S8: restarting the tested SERDES, controlling the tested SERDES to operate in a near-end loopback mode, and turning to the step S2;
step S9: and stopping the irradiation of the high-energy particles, and calculating the single-particle function interruption section of the detected SERDES.
2. The SERDES single-event functional interrupt cross-section testing method according to claim 1, wherein in step S1, the constraint PxT <1,T is the maximum time it takes for the tested SERDES to start transmitting COMMA codes under normal operating conditions until word boundary alignment is completed.
3. The method for testing the SERDES single-particle functional interruption section according to claim 1, wherein in the step S9, the single-particle functional interruption section C = K/Q of the tested SERDES is calculated.
4. A SERDES single particle functional interruption cross-section testing method according to any of claims 1 to 3 wherein 9000 particles-cm of high energy particles are used in step S1 -2 s -1 The fluence rate of (a) irradiates the measured SERDES and starts to count the total fluence Q.
5. A SERDES single-event functional interrupt cross section test system based on the method of any one of claims 1 to 4, wherein the SERDES to be tested is connected with the test system, and the method comprises the following steps:
the resetting and starting unit is used for controlling the resetting and starting of the tested SERDES;
the first configuration unit is used for controlling the tested SERDES to be configured into a near-end loopback mode;
the second configuration unit is used for configuring a PRBS generator of the detected SERDES to generate a PRBS code of a specified code pattern, configuring a PRBS detector of the detected SERDES to detect the PRBS code of the specified code pattern, and configuring the detected SERDES to transmit a COMMA code;
the detection unit is used for detecting whether the detected SERDES completes the indication of word boundary alignment;
and the computing unit is used for performing variable operation, logic judgment and computation and counting the number of single event functional interrupts.
6. The SERDES single event function interrupt cross-section test system according to claim 5, further comprising a timing unit for calculating a wait T time.
7. The system for testing the SERDES single event function interrupt cross section according to claim 5, wherein the specified patterns of the PRBS code include PRBS7, PRBS15, PRBS23 and PRBS31 patterns, but do not include patterns that can complete word alignment.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8467436B1 (en) * | 2009-04-29 | 2013-06-18 | Pmc-Sierra Us, Inc. | DSP-based diagnostics for monitoring a SerDes link |
| CN108491296A (en) * | 2018-03-09 | 2018-09-04 | 中国人民解放军国防科技大学 | Method for testing single event upset section of microprocessor |
| CN110024214A (en) * | 2016-12-30 | 2019-07-16 | 英特尔公司 | Pass through the millimeter wave optical fiber network of Medium Wave Guide |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7251764B2 (en) * | 2003-05-27 | 2007-07-31 | International Business Machines Corporation | Serializer/deserializer circuit for jitter sensitivity characterization |
| US9825842B2 (en) * | 2013-12-23 | 2017-11-21 | Bae Systems Information And Electronic Systems Integration Inc. | Network test system |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8467436B1 (en) * | 2009-04-29 | 2013-06-18 | Pmc-Sierra Us, Inc. | DSP-based diagnostics for monitoring a SerDes link |
| CN110024214A (en) * | 2016-12-30 | 2019-07-16 | 英特尔公司 | Pass through the millimeter wave optical fiber network of Medium Wave Guide |
| CN108491296A (en) * | 2018-03-09 | 2018-09-04 | 中国人民解放军国防科技大学 | Method for testing single event upset section of microprocessor |
Non-Patent Citations (2)
| Title |
|---|
| ingle Event Effects Testing on the SERDES, Fabric Flip-Flops and PLL in a Radiation-Hardened Flash-Based FPGA-RT4G150;Jih-Jong Wang等;《IEEE》;20160715;全文 * |
| 星载高速SerDes电路的设计与实现;刘军峰等;《空间电子技术》;20141225(第04期);全文 * |
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