Abstract:
Embodiments relate to systems and methods for error containment in a system comprising detecting an error by processing an input signal by multiple processing units, and delaying at least one output signal of a processing unit to enable, in case an error has been detected, modifying at least one output signal of the processing unit that would cause propagation of the error through the system.
Abstract:
An error signal handling unit includes an error handler configured to receive an error signal indicating an error condition. The error handler is further configured to receive a recovery signal indicating a mitigation of the error condition or indicating that a mitigation of the error condition is possible. Furthermore, the error handler is further configured to output an error condition signal based on the error signal in response to a reception of the error signal if within a given delay time from the reception of the error signal, the error handler does not receive the recovery signal, and otherwise omit outputting the error condition signal.
Abstract:
Some embodiments of the invention relate to an embedded processing system. The system includes a memory unit to store a plurality of operating instructions and a processing unit coupled to the memory unit. The processing unit can execute logical operations corresponding to respective operating instructions. An input/output (I/O) interface receives a first time-varying waveform and provides an I/O signal that is based on the first time-varying waveform. A comparison unit coupled to the processing unit and adapted to selectively assert an error signal based on whether the I/O signal has a predetermined relationship with a reference signal, wherein the predetermined relationship holds true during normal operation but fails to hold true when an unexpected event occurs and causes an unexpected change at least one of the I/O signal and reference signal.
Abstract:
A device for operating an apparatus comprising a first controller configured to be controlled by a first control signal, a second controller configured to be controlled by a second control signal, a control unit operatively connected to the first controller and the second controller, wherein the first controller and the second controller are both configured to operate the apparatus.
Abstract:
According to various embodiments, a control device is described including an application core including a processor, a memory and a direct memory access controller and a security module coupled to the application core via a computer bus. The direct memory access controller is configured to read data from the memory, generate a hash value for the data and provide the hash value to the security module via the computer bus. The security module is configured to process the hash value.
Abstract:
A device for operating an apparatus comprising a first controller configured to be controlled by a first control signal, a second controller configured to be controlled by a second control signal, a control unit operatively connected to the first controller and the second controller, wherein the first controller and the second controller are both configured to operate the apparatus.
Abstract:
A system and method for direct memory access (DMA) operation provides for receiving DMA requestors, assigning the received DMA requestors to one or more of a plurality of DMA engines for processing the received DMA requestors, and if one of the received DMA requestors is a safety requestor, assigning the safety requestor to at least two DMA engines of the plurality of DMA engines for processing the safety requestor, disabling a bus interface for coupling at least one DMA engine of the at least two DMA engines to memories, comparing the outputs of the at least two DMA engines, and generating an error message if the comparison of the outputs of the at least two DMA engines are different from each other.
Abstract:
An error signal handling unit includes an error handler configured to receive an error signal indicating an error condition. The error handler is further configured to receive a recovery signal indicating a mitigation of the error condition or indicating that a mitigation of the error condition is possible. Furthermore, the error handler is further configured to output an error condition signal based on the error signal in response to a reception of the error signal if within a given delay time from the reception of the error signal, the error handler does not receive the recovery signal, and otherwise omit outputting the error condition signal.