CN102354294A - Method for detecting spatial single event upset of space-borne DSP (Digital Signal Processor) chip - Google Patents
Method for detecting spatial single event upset of space-borne DSP (Digital Signal Processor) chip Download PDFInfo
- Publication number
- CN102354294A CN102354294A CN2011102444037A CN201110244403A CN102354294A CN 102354294 A CN102354294 A CN 102354294A CN 2011102444037 A CN2011102444037 A CN 2011102444037A CN 201110244403 A CN201110244403 A CN 201110244403A CN 102354294 A CN102354294 A CN 102354294A
- Authority
- CN
- China
- Prior art keywords
- dsp chip
- dsp
- program
- program area
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to a method for detecting spatial single event upset of a space-borne DSP (Digital Signal Processor) chip. The method comprises the following steps of: performing 32bits verification on a content in a DSP chip program area in sections, storing a verification result into a three-section data area of the DSP chip, and then solidifying the chip; after electrifying the DSP and running a program, moving the content in the DSP chip program area to the three-section data area in sections by a DMA (Direct Memory Access) controller during a running process of a CPU (Central Processing Unit), and performing 32bits verification calculation on the moved sectional data by the CPU in an idle period; and comparing a calculated result with a three-modular redundancy judging result of a verification value pre-stored in the data area, thereby confirming whether a single event upset phenomenon occurs in the content of the DSP chip program area. According to the method, a DSP program is used for realizing the self-detection of the single event upset phenomenon in a chip, the DMA controller is used for moving the data and the content in the DSP chip program area is verified in sections, thereby reducing the occupied running time of the CPU and the cost of program codes.
Description
Technical field
The present invention relates to a kind of space single-particle inversion detection method of spaceborne dsp chip, is the applied research of satellite useful load platform reliability, belongs to satellite reliability application.
Background technology
Along with the development of spacecraft function, increasing useful load product has used advanced Digital Signal Processing, in order to accomplish these digital processing functions, has adopted a lot of large-scale digital ics on the hardware designs.The single particle effect of these components and parts is more and more serious; Especially need aerospace equipment continuous, long-term stable operation to adopt the responsive large scale integrated circuit of these single-particles; Reinforcing if do not take a series of measure to carry out single particle effect, is can't satisfy the user to the demand of serviceability.
Most of the time; We are that via satellite useful load functional status judges whether the large-scale digital ic in the useful load single-particle inversion phenomenon has taken place, and these have devices itself of embedded programming function and can't know whether self single-particle inversion has taken place.The result who causes like this is exactly that the satellite useful load can't be carried out the recovery certainly of function through the measure of self in case single particle phenomenon device itself has taken place at work.Need ground to intervene artificially and recover whole useful load function.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiency of prior art, a kind of space single-particle inversion detection method of spaceborne dsp chip is provided, accomplish the measuring ability of inner single-particle inversion phenomenon through the embedded program in the dsp chip.
Technical solution of the present invention:
A kind of space single-particle inversion detection method of spaceborne dsp chip comprises data field, program area, CPU and dma controller in the said dsp chip, the space single-particle inversion of said spaceborne dsp chip is following from the step that detects method:
(1) content of program area storage in the dsp chip is carried out segmentation, again each section content is carried out the 32bits verification; Said 32bits verification is meant that the mould 2 of 32bits adds computing;
(2) three segment data storage spaces are opened up in the data field in dsp chip; The result of the 32bits verification of described in the step (1) each section content being carried out is deposited in said three place's data spaces simultaneously, and the program code with dsp chip is cured among the dsp chip outer PROM or FLASH then;
(3) after dsp chip resets, promptly dsp chip is started working, and through dma controller the PROM outside the dsp chip or the program code of the said dsp chip among the FLASH is loaded in the dsp chip internal program district;
(4) through dma controller the content segmentation of program area is moved in the data field, move one section program area contents at every turn;
(5) after dma controller is operated completion to moving of one section program area contents, then this section program area contents in the data field is carried out the 32bits verification;
(6) one section pairing three check results of program area contents described in the step (5) of storing in the data field in the step (2) are carried out the triplication redundancy voting;
(7) the triplication redundancy voting result in check results in the step (5) and the step (6) is compared,, think that then single-particle inversion has taken place in the program area if both are unequal.
The present invention's beneficial effect compared with prior art:
In the space reliability research about dsp chip, all be that the measure of adopting instruction code Redundancy Design measure or in code, inserting control routine increases the fault-tolerant ability of chip and the normality of detection dsp operation basically at home and abroad.These two class methods all are that the Design of Reinforcement angle from program code considers a problem error detection and fault-tolerant probability between 74%～96%.But the memory space that this type Design of Reinforcement method is brought is up to 120%～500%, and the increment of program execution time is also between 33%～141%.Focus of the present invention is to solve the detection that the single-particle inversion phenomenon takes place in dsp chip internal processes district; The present invention design is only accomplished whole measuring ability through embedding a verification with a bit of space that is used to store correct check results of calculating the comparison program and open up in the data field; Owing to adopted the strategy of segmentation verification, on the basis of having reduced the code expense, alleviated work load and the program execution time expense of CPU again greatly simultaneously.The present invention is complicated for program structure, and the strict task of CPU work schedule has more advantage.
Description of drawings
Fig. 1 is a dsp chip structural representation of the present invention;
Fig. 2 is a detection method process flow diagram of the present invention;
Fig. 3 is applied in the process flow diagram in the dsp chip course of work for detection method of the present invention.
Embodiment
DSP adopts sequential logical circuit pipelining, that degree of parallelism is not high.For dsp chip itself, RAM on the sheet of DSP has been formed in program area and data field, and the single-particle inversion sectional area of whole procedure district and data field is the highest; That is to say; The single-particle inversion fault of program area and data field takes place in the dsp chip the most easily, but the single-particle inversion that the data field takes place maybe not can produce appreciable impact to the execution result of dsp chip, perhaps after single-particle inversion takes place; Fault hides, and maybe be showing sometime subsequently.
The single-particle inversion of the program area of DSP causes the disorder of DSP program execution flow, and this is the main forms of DSP single particle effect fault, can cause program " race flies " perhaps " deadlock ".
The invention provides a kind of space single-particle inversion detection method of spaceborne dsp chip; Dsp chip inside is divided into several sections; As shown in Figure 1; Be respectively that on-chip memory (comprising program area and data field), CPU become peripheral hardware multi-channel DMA controller etc. with chip integration, detection method of the present invention is made up of following key step: as shown in Figure 2
(1) content of program area storage in the dsp chip is carried out segmentation; (carry out the shared CPU time of self checking in order to reduce DSP; This method is divided into the M section with the content of program's memory space and carries out verification respectively; Like (address 0x00000000～0x00000fff is first section, and 0x00001000～0x00001fff is second section etc.), again each section content is carried out the 32bits verification; The 32bits verification is meant that the mould 2 of 32bits adds computing, can also use other methods of calibration, such as parity checking or the like among the present invention.
(2) three segment data storage spaces are opened up in the data field in dsp chip; The result of the 32bits verification of described in the step (1) each section content being carried out is deposited in said three place's data spaces simultaneously, and the content of finally storing in this three places data space is the same.Program code with dsp chip is cured among the dsp chip outer PROM or FLASH then; The program code of the object of the curing of mentioning here---dsp chip is meant: all the elements of storing within the program area of dsp chip and the data field, comprise DSP self the task program that will carry out, also comprise the relevant program of single-particle inversion that detects.
(3) after dsp chip resets, promptly dsp chip is started working, and through dma controller the PROM outside the dsp chip or the program code of the said dsp chip among the FLASH is loaded in the dsp chip internal program district;
(4) through dma controller the content segmentation of program area is moved in the data field, move one section program area contents at every turn;
The size of segmentation is by specific procedure district size and the decision of program run sequential; For example: for baroque program; The space of the shared program area of program is often very big, at this moment, if only program area contents is once moved operation; Then need take space, lot of data district; And carry out need taking a large amount of working times when verification is calculated at CPU, so we can be divided into the content of the every 1K byte in program area one section and carry out segmentation and move, the holding time that can either save CPU can reduce the storage overhead of data field again.
(5) after dma controller is operated completion to moving of one section program area contents, then this section program area contents in the data field is carried out the 32bits verification, promptly the mould 2 of 32bits adds computing;
(6) pairing three check results of this section program area contents of moving operation described in the step (5) of storing in the data field in the step (2) are carried out the triplication redundancy voting;
The voting principle of triplication redundancy voting: 1) if three numbers are identical, then getting first number is voting result.2) if wherein two identical, then getting these two identical numbers is voting result.3) if three numbers have nothing in common with each other, then getting first number is voting result.
(7) the triplication redundancy voting result in check results in the step (5) and the step (6) is compared,, think that then single-particle inversion has taken place in the program area if both are unequal.
Following is example with the SMJ320C6203 of TI company dsp chip, carries out the introduction of the inventive method: as shown in Figure 3, and for detection method of the present invention is applied in the process flow diagram in the dsp chip course of work.
1) after accomplishing the program design of DSP task function; Divide 10 sections moulds 2 that carry out 32bits to add calculating to the content of program area; And 3 samples of result of calculation are kept at 3 diverse locations of data space, Chk_Data_R1 [10], Chk_Data_R2 [10], Chk_Data_R3 [10] through program code.Recompility, linked code form load document and are cured in the sheet external memory space (FLASH, PROM) of DSP afterwards.
2) after program powers on, move in the ram in slice space of DSP through dma controller being stored in the outer program code of sheet.
3) the CPU program that brings into operation is accomplished each control register parameter of DSP the initial work with the task of DSP own is set, and accomplishes the initial work of DMA1 passage simultaneously, enables the DMA1 interruption.
4) open the DMA1 controller; Make it move the content among the 1st section 0x00000000～0x00000fff of address field; And it is stored in (content-length in one piece of data district is the number of 1024 32bits) among the int type array Chk_Data [1024] who defines in the data space; Simultaneously, the DMA1 control register is set, after the DMA1 controller is accomplished the data-moving operation, produces the internal interrupt signal of DMA1.
5) CPU continues the program task of operation DSP itself.(often in the satellite load application, the DSP program is circular flow).
6) after DMA1 accomplishes and to move operation, the internal interrupt that DSP responding DMA 1 produces (when CPU does not respond other interruption with high priority more).In the DMA1 interrupt routine, move complement mark flag with one and be changed to 1.
When 7) CPU circular flow is to judgement flag program segment, judge whether the flag sign is 1, jumps to the 5th if be not 1) step, if 1 changes the 8th over to) step.
8) flag sign is changed to 0, the mould 2 that simultaneously data among the Chk_Data [1024] is carried out 32bits adds calculating.
The 1st Elements C hk_Data R1 [0], Chk_Data_R2 [0], Chk_Data_R3 [0] among three verifications that 9) will deposit in advance and array Chk_Data_R1 [10], Chk_Data_R2 [10], the Chk_Data_R3 [10] carries out the triplication redundancy voting.
The decision method of triplication redundancy design adopts space, three data fields to store same variant content, during use the content of these three data fields is adjudicated the correct values that decides variable.Program circuit is following:
In program, during to a certain variable assignments, carry out 3 times operations, respectively in assignment to the 3 different data field.
As, x is composed data2 and data3 to data1
When needs use the value of being somebody's turn to do, need adjudicate three numbers
If data1 equals data2, this value is got the value of data1 so, and changes the value of data3 the value of data1 into.
If else data1 equals data3, this value is got the value of data1 so, and changes the value of data2 the value of data1 into.
The value that this value of else is got data1, and data2 and data3 changed into the value of data1.
10) with the 8th) step result calculated and the 9th) result after the step voting compares, if come to the same thing, then continues the step (11) of bottom.If inequality, then the single-particle inversion phenomenon has taken place in the read-me district.At this moment, DSP stops the dog feeding operation of house dog, realizes reloading the DSP program through watchdog reset.
11) open the DMA1 controller, make its content 0x00001000 that moves next section program area～0x00001fff.Forward the 5th afterwards to) step.
Claims (2)
1. the space single-particle inversion detection method of a spaceborne dsp chip is characterized in that: comprise data field, program area, CPU and dma controller in the said dsp chip, the space single-particle inversion of said spaceborne dsp chip is following from the step that detects method:
(1) content of program area storage in the dsp chip is carried out segmentation, again each section content is carried out the 32bits verification;
(2) three segment data storage spaces are opened up in the data field in dsp chip; The result of the 32bits verification of described in the step (1) each section content being carried out is deposited in said three place's data spaces simultaneously, and the program code with dsp chip is cured among the dsp chip outer PROM or FLASH then;
(3) after dsp chip resets, promptly dsp chip is started working, and through dma controller the PROM outside the dsp chip or the program code of the said dsp chip among the FLASH is loaded in the dsp chip internal program district;
(4) through dma controller the content segmentation of program area is moved in the data field, move one section program area contents at every turn;
(5) after dma controller is operated completion to moving of one section program area contents, then this section program area contents in the data field is carried out the 32bits verification;
(6) one section pairing three check results of program area contents described in the step (5) of storing in the data field in the step (2) are carried out the triplication redundancy voting;
(7) the triplication redundancy voting result in check results in the step (5) and the step (6) is compared,, think that then single-particle inversion has taken place in the program area if both are unequal.
2. the space single-particle inversion detection method of a kind of spaceborne dsp chip according to claim 1, it is characterized in that: said 32bits verification is meant that the mould 2 of 32bits adds computing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110244403.7A CN102354294B (en) | 2011-08-23 | 2011-08-23 | Method for detecting spatial single event upset of space-borne DSP (Digital Signal Processor) chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110244403.7A CN102354294B (en) | 2011-08-23 | 2011-08-23 | Method for detecting spatial single event upset of space-borne DSP (Digital Signal Processor) chip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102354294A true CN102354294A (en) | 2012-02-15 |
| CN102354294B CN102354294B (en) | 2015-04-22 |
Family
ID=45577861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110244403.7A Active CN102354294B (en) | 2011-08-23 | 2011-08-23 | Method for detecting spatial single event upset of space-borne DSP (Digital Signal Processor) chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102354294B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103955411A (en) * | 2014-05-21 | 2014-07-30 | 北京空间机电研究所 | On-orbit transmitting and configuring method for spaceborne high-capacity FPGA (Field Programmable Gate Array) program |
| CN104133738A (en) * | 2014-07-11 | 2014-11-05 | 中国人民解放军信息工程大学 | SEU-resistant method for satellite-borne MIMO detector based on SEC-DED |
| CN104484238A (en) * | 2014-12-16 | 2015-04-01 | 北京控制工程研究所 | CRC (Cyclic Redundancy Check) method for SRAM (Static Random Access Memory) type FPGA (Field Programmable Gate Array) configuration refreshment |
| CN105446842A (en) * | 2015-12-03 | 2016-03-30 | 南京南瑞继保电气有限公司 | ADI DSP code online monitoring method |
| CN105760248A (en) * | 2016-02-15 | 2016-07-13 | 上海卫星工程研究所 | Efficient FPGA configuration backward-reading device and method |
| CN106339282A (en) * | 2016-08-26 | 2017-01-18 | 哈尔滨工业大学 | Triple modular redundancy information storage system for complex space environment and program burning and program boot-loading methods |
| CN106407056A (en) * | 2016-09-21 | 2017-02-15 | 哈尔滨工业大学 | A detection and restoration system and method for a programmable computing unit for space information processing |
| WO2017036202A1 (en) * | 2015-08-28 | 2017-03-09 | 中兴通讯股份有限公司 | Bit-flipping detection method and device |
| CN107239420A (en) * | 2012-11-21 | 2017-10-10 | 相干逻辑公司 | With the processing system for spreading processor DMA FIFO |
| CN107273240A (en) * | 2017-05-18 | 2017-10-20 | 北京空间飞行器总体设计部 | A kind of spaceborne phased array TR components single-particle inversion means of defence |
| CN107301042A (en) * | 2017-06-06 | 2017-10-27 | 北京航天自动控制研究所 | A kind of SoC application program bootstrap techniques with self-checking function |
| CN111190772A (en) * | 2020-01-02 | 2020-05-22 | 上海航天测控通信研究所 | DSP secondary starting system and method for resisting space single event upset |
| CN111966525A (en) * | 2020-10-23 | 2020-11-20 | 中国人民解放军国防科技大学 | DSP program operation method of satellite-borne navigation equipment and DSP system thereof |
| CN112115017A (en) * | 2020-08-07 | 2020-12-22 | 航天科工空间工程发展有限公司 | Logic code monitoring method and device of satellite-borne software program |
| CN112559071A (en) * | 2020-12-14 | 2021-03-26 | 上海航天控制技术研究所 | Segmented dual-redundancy boot loading method for DSP |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458638A (en) * | 2007-12-13 | 2009-06-17 | 安凯（广州）软件技术有限公司 | Large scale data verification method for embedded system |
| CN101477480A (en) * | 2009-02-05 | 2009-07-08 | 华为技术有限公司 | Memory control method, apparatus and memory read-write system |
| CN101976212A (en) * | 2010-10-27 | 2011-02-16 | 西安空间无线电技术研究所 | Small amount code reloading-based DSP anti-single-event error correction method |
-
2011
- 2011-08-23 CN CN201110244403.7A patent/CN102354294B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458638A (en) * | 2007-12-13 | 2009-06-17 | 安凯（广州）软件技术有限公司 | Large scale data verification method for embedded system |
| CN101477480A (en) * | 2009-02-05 | 2009-07-08 | 华为技术有限公司 | Memory control method, apparatus and memory read-write system |
| CN101976212A (en) * | 2010-10-27 | 2011-02-16 | 西安空间无线电技术研究所 | Small amount code reloading-based DSP anti-single-event error correction method |
Non-Patent Citations (3)
| Title |
|---|
| 张路等: "空间DSP加载系统可靠性设计", 《计算机工程》 * |
| 李志刚等: "抗单粒子翻转的可重构卫星通信系统", 《宇航学报》 * |
| 邢克飞等: "数字信号处理器抗辐射设计技术研究", 《应用基础与工程科学学报》 * |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107239420B (en) * | 2012-11-21 | 2020-05-05 | 相干逻辑公司 | Processing system with interspersed processors DMA-FIFO |
| CN107239420A (en) * | 2012-11-21 | 2017-10-10 | 相干逻辑公司 | With the processing system for spreading processor DMA FIFO |
| CN103955411A (en) * | 2014-05-21 | 2014-07-30 | 北京空间机电研究所 | On-orbit transmitting and configuring method for spaceborne high-capacity FPGA (Field Programmable Gate Array) program |
| CN104133738A (en) * | 2014-07-11 | 2014-11-05 | 中国人民解放军信息工程大学 | SEU-resistant method for satellite-borne MIMO detector based on SEC-DED |
| CN104133738B (en) * | 2014-07-11 | 2017-04-12 | 中国人民解放军信息工程大学 | SEU-resistant method for satellite-borne MIMO detector based on SEC-DED |
| CN104484238A (en) * | 2014-12-16 | 2015-04-01 | 北京控制工程研究所 | CRC (Cyclic Redundancy Check) method for SRAM (Static Random Access Memory) type FPGA (Field Programmable Gate Array) configuration refreshment |
| CN104484238B (en) * | 2014-12-16 | 2016-02-10 | 北京控制工程研究所 | A kind of CRC check method refreshed for SRAM type FPGA configuration |
| WO2017036202A1 (en) * | 2015-08-28 | 2017-03-09 | 中兴通讯股份有限公司 | Bit-flipping detection method and device |
| CN105446842A (en) * | 2015-12-03 | 2016-03-30 | 南京南瑞继保电气有限公司 | ADI DSP code online monitoring method |
| CN105446842B (en) * | 2015-12-03 | 2019-01-04 | 南京南瑞继保电气有限公司 | A kind of ADI DSP code in-service monitoring method |
| CN105760248A (en) * | 2016-02-15 | 2016-07-13 | 上海卫星工程研究所 | Efficient FPGA configuration backward-reading device and method |
| CN106339282A (en) * | 2016-08-26 | 2017-01-18 | 哈尔滨工业大学 | Triple modular redundancy information storage system for complex space environment and program burning and program boot-loading methods |
| CN106339282B (en) * | 2016-08-26 | 2019-02-19 | 哈尔滨工业大学 | A kind of information storage system and program burn writing and program start-up loading method |
| CN106407056A (en) * | 2016-09-21 | 2017-02-15 | 哈尔滨工业大学 | A detection and restoration system and method for a programmable computing unit for space information processing |
| CN106407056B (en) * | 2016-09-21 | 2019-06-11 | 哈尔滨工业大学 | The detection repair system and method for the programmable computing unit of Technology for Spatial Information System processing |
| CN107273240A (en) * | 2017-05-18 | 2017-10-20 | 北京空间飞行器总体设计部 | A kind of spaceborne phased array TR components single-particle inversion means of defence |
| CN107273240B (en) * | 2017-05-18 | 2020-04-28 | 北京空间飞行器总体设计部 | Single event upset protection method for satellite-borne phased array TR (transmitter-receiver) assembly |
| CN107301042A (en) * | 2017-06-06 | 2017-10-27 | 北京航天自动控制研究所 | A kind of SoC application program bootstrap techniques with self-checking function |
| CN107301042B (en) * | 2017-06-06 | 2020-07-14 | 北京航天自动控制研究所 | SoC application program guiding method with self-checking function |
| CN111190772A (en) * | 2020-01-02 | 2020-05-22 | 上海航天测控通信研究所 | DSP secondary starting system and method for resisting space single event upset |
| CN111190772B (en) * | 2020-01-02 | 2023-03-31 | 上海航天测控通信研究所 | DSP secondary starting system and method for resisting space single event upset |
| CN112115017A (en) * | 2020-08-07 | 2020-12-22 | 航天科工空间工程发展有限公司 | Logic code monitoring method and device of satellite-borne software program |
| CN112115017B (en) * | 2020-08-07 | 2022-07-12 | 航天科工空间工程发展有限公司 | Logic code monitoring method and device of satellite-borne software program |
| CN111966525A (en) * | 2020-10-23 | 2020-11-20 | 中国人民解放军国防科技大学 | DSP program operation method of satellite-borne navigation equipment and DSP system thereof |
| CN111966525B (en) * | 2020-10-23 | 2021-03-26 | 中国人民解放军国防科技大学 | DSP program operation method of satellite-borne navigation equipment and DSP system thereof |
| CN112559071A (en) * | 2020-12-14 | 2021-03-26 | 上海航天控制技术研究所 | Segmented dual-redundancy boot loading method for DSP |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102354294B (en) | 2015-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102354294B (en) | Method for detecting spatial single event upset of space-borne DSP (Digital Signal Processor) chip | |
| US7975130B2 (en) | Method and system for early instruction text based operand store compare reject avoidance | |
| US11263081B2 (en) | Checkpointing | |
| CN101334721A (en) | Thread livelock unit | |
| CN103218272A (en) | Spaceborne digital signal processor turning reinforcing method | |
| US10062451B2 (en) | Background memory test apparatus and methods | |
| CN104035843A (en) | System and Method to Increase Lockstep Core Availability | |
| CN103955448B (en) | A kind of primary particle inversion resistant FFT Design Method of Reinforcing | |
| CN205992221U (en) | Multiline procedure processor and fault-tolerant multiline procedure processor | |
| CN103226499A (en) | Method and device for restoring abnormal data in internal memory | |
| CN102640119A (en) | Method for operating a processor | |
| Alcaide et al. | Software-only diverse redundancy on GPUs for autonomous driving platforms | |
| Han et al. | 40‐TFLOPS artificial intelligence processor with function‐safe programmable many‐cores for ISO26262 ASIL‐D | |
| US20180285559A1 (en) | Stack pivot detection systems and methods | |
| Rochange et al. | Time-predictable architectures | |
| CN104951276B (en) | A kind of detection method and system of the failure of chip instruction cache | |
| US9389864B2 (en) | Data processing device and method, and processor unit of same | |
| CN104346306A (en) | System and method of high integrity DMA operation | |
| CN103473153B (en) | For detecting the method and system of the incipient fault in microcontroller | |
| CN103389893A (en) | Read-write method and device for configuration register | |
| CN111352757A (en) | Apparatus, system, and method for detecting uninitialized memory reads | |
| CN103154919A (en) | Exception control in a multiprocessor system | |
| Vargas et al. | Preliminary results of SEU fault-injection on multicore processors in AMP mode | |
| WO2008155807A1 (en) | Information processor and load arbitration control method | |
| CN105607726B (en) | A kind of method and device reducing High Performance Computing Cluster power consumption of internal memory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |