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Reconfigurable hardware-oriented active fault-tolerant switch block

A switch block and hardware technology, applied in the field of switches, can solve the problems of high time overhead and low resource utilization, and achieve the effects of small time overhead, high resource utilization, and simple process.

Inactive Publication Date: 2012-06-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an autonomous fault-tolerant switch block oriented to reconfigurable hardware, so as to solve the problem that the fault-tolerant method of the existing reconfigurable hardware switch block requires external software or hardware centralized control, difficulty in online execution, and time overhead Large and low resource utilization

Method used

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  • Reconfigurable hardware-oriented active fault-tolerant switch block
  • Reconfigurable hardware-oriented active fault-tolerant switch block
  • Reconfigurable hardware-oriented active fault-tolerant switch block

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing, technical scheme of the present invention will be further described:

[0021] Such as figure 1 As shown, the autonomous fault-tolerant switch block for reconfigurable hardware in this example is composed of basic switch block, fault test circuit, switch block repair circuit and connection repair circuit, in which the control signal control_s input channel and connection repair circuit are designed ( #0~#3). The control signal control_s includes a switch block test vector and a repair control signal, wherein the switch block test vector is used for fault self-test of the multiplexer in the fault-tolerant switch block, and the repair control signal is used to enable the multiplexer self-repair and the connection self-repair. The channel s is a redundant repair line for connection repair, and the connection repair circuit in the fault-tolerant switch block is used to realize the connection repair between fault-tolerant switc...

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Abstract

The invention discloses a reconfigurable hardware-oriented active fault-tolerant switch block, which comprises a basic switch block, wherein the basic switch block is provided with at least one channel; the channel is composed of at least one multiplexer; the reconfigurable hardware-oriented active fault-tolerant switch block is characterized by further comprising a fault test circuit for testing a fault state of the multiplexer, a switch block restoration circuit for replacing the multiplexer which suffers a fault, and a connection wire restoration circuit for restoration of connection wires between fault-tolerant switch blocks. The reconfigurable hardware-oriented active fault-tolerant switch block according to the invention does not need external hardware or software integrated control, is helpful for the reconfigurable hardware to realize online active distributive detection and restoration functions, and is simple in process, low in time cost and high in resource utilization rate.

Description

technical field [0001] The invention relates to a switch with an autonomous fault-tolerant function, in particular to an autonomous fault-tolerant switch block oriented to reconfigurable hardware. Background technique [0002] Interconnection resources in reconfigurable hardware often occupy more than 70% of the entire chip area, mainly including switch blocks and interconnection lines between switch blocks. The switch block mainly adopts the design form based on the multiplexer. If the internal multiplexer of the switch block or the interconnection line between the switch blocks fails, it will cause an error in the data transmission of the switch block and affect the function execution of the entire reconfigurable hardware. Therefore, the research on fault-tolerant technology of reconfigurable hardware switch block is very important. [0003] At present, the diagnostic research of reconfigurable hardware switch blocks mainly adopts methods such as offline reconfiguration t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K19/003
Inventor 王友仁王敏张砦袁鹏
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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