Presentation 2011-04-12
Highly Flexible Task Tracer IP for the Real-Time OS on FPGA/SoC Environments
Yuji TAKEDA, Mamoru OHARA, Tadashi OKABE, Ken SATO,
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Abstract(in English) Recently, the use of RTOS is advanced in a multi-core processor on FPGA/SoC, and to watch the task transitions is important when confirm dead lock conditions and operations of realtime processing. However, the conventional methods by using software hook processes or processor specific hardware, i.e. the ICE, are not suitable for long realtime monitoring without processor loading. Then, we have developed a task tracer IP to extract only task transitions by snooping a general-purpose bus of FPGA/SoC. This IP consists of several taps and a master, and the selectivity of communication I/F that transmits the trace data and the core scalability are improved. Moreover, it can compress the trace data by difference operations and variable length coding. It was confirmed to reduce the traffic by 46.6% as a result of really tracing the TCB access by the TOPPERS kernel.
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Keyword(in English) FPGA/SoC / multi-core processor / RTOS (Real-Time OS) / task trace / data compression
Paper # CPSY2011-7,DC2011-7
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Committee DC
Conference Date 2011/4/5(1days)
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Registration To Dependable Computing (DC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Highly Flexible Task Tracer IP for the Real-Time OS on FPGA/SoC Environments
Sub Title (in English)
Keyword(1) FPGA/SoC
Keyword(2) multi-core processor
Keyword(3) RTOS (Real-Time OS)
Keyword(4) task trace
Keyword(5) data compression
1st Author's Name Yuji TAKEDA
1st Author's Affiliation Tokyo Metropolitan Industrial Technology Research Institute()
2nd Author's Name Mamoru OHARA
2nd Author's Affiliation Tokyo Metropolitan Industrial Technology Research Institute
3rd Author's Name Tadashi OKABE
3rd Author's Affiliation Tokyo Metropolitan Industrial Technology Research Institute
4th Author's Name Ken SATO
4th Author's Affiliation Tokyo Metropolitan Industrial Technology Research Institute
Date 2011-04-12
Paper # CPSY2011-7,DC2011-7
Volume (vol) vol.111
Number (no) 2
Page pp.pp.-
#Pages 6
Date of Issue