摘要:
In a method for error handling in transmission of a datum over a communications system, at least two data words consisting of bits are generated for the datum in accordance with a predefined coding rule, and one of the generated data words is selected taking into consideration a running digital sum formed over the corresponding data word, and the running digital sum of the selected data word is used for the formation of a first running digital sum. The selected data word is converted into a code data word, and a bit of the data word is in each case assigned a two-bit string with two different single-bit values. The code data word and the first running digital sum are transmitted. The received code data word is examined to ascertain whether an erroneous two-bit string exists, in which case the error is corrected using the first running digital sum.
摘要:
A device and method for storing data and/or instructions in a computer system having at least two processing units and at least one first memory or memory area for data and/or instructions, wherein a second memory or memory area is included in the device, the device being designed as a cache memory system and equipped with at least two separate ports, and the at least two processing units accessing via these ports the same or different memory cells of the second memory or memory area, the data and/or instructions from the first memory system being stored temporarily in blocks.
摘要:
A method for comparing data in a computer system having at least two execution units, the comparison of the data taking place in a comparison unit and each execution unit processing input data and generating output data, wherein one execution unit specifies to the comparison unit that the next piece of output data is to be compared to a piece of output data of the at least second execution unit, and thereupon a comparison of the at least two output data takes place.
摘要:
A method and device for generating a signal in a computer system having a plurality of components, at least two execution units being provided as two components, and a switchover means being provided as an additional component, in the computer system, switchover operations being carried out between at least two operating modes, and a first operating mode corresponding to a comparison mode and a second operating mode corresponding to a performance mode, wherein, in one component of the computer system, a mode signal, indicative of the current operating mode, and/or changes in a mode signal are generated, and at least the changes in the mode signal and/or the mode signal itself are made available outside of the component.
摘要:
A method for switchover and for signal comparison is used in a computer system having at least two processing units, a switchover device being provided, and a switch taking place between at least two operating modes, and a comparison device being provided; and a first operating mode corresponds to a compare mode, and a second operating mode corresponds to a performance mode, wherein at least two analog signals of the processing units are compared in that at least one analog signal is converted into at least one digital value.
摘要:
To handle the errors occurring in running a computer program on a computer system (1) in the most flexible possible manner and thereby ensure the greatest possible availability of the computer program, an identifier is assigned to the error handling signal generated by an error detection unit (5) when an error occurs, an error handling routine is selected from a preselectable set of error handling routines as a function of this identifier and the selected error handling routine is executed.
摘要:
A method and a device for error handling in the transmission of coded data in the form of at least one data word via a communications system, for the at least one data word a code data word being selected according to a specifiable coding rule, the data being represented as bits which are able to assume two different values, ones and zeros, at least one running digital sum being formed in such a way that a summed difference of the total number of the ones and the total number of the zeros is at least formed through the code data word and this running digital sum is transmitted, the running digital sum being determined to the following code data word and being compared to the one that is then transmitted, in the case of deviation, an error being detected.
摘要:
A device and a method for forming a signature, a predefined number of shift registers being provided, to which input data to be tested is applied bit-by-bit and in parallel as successive data words and which serially shift the input data forward in a predefinable cycle, a signature being formed in the shift registers after a certain number of data words and cycles, a code generator which generates at least one additional bit position in at least one additional shift register from each data word in the signature also being provided.
摘要:
A circuit assemblage and a method for evaluating signals of a crankshaft sensor and of a camshaft sensor of an internal combustion engine are provided, the times at which the signals occur being evaluated. A position signal of a shaft of the internal combustion engine is formed from the times. Storage units are provided which simultaneously store the occurrence times of the signals of the crankshaft sensor and the occurrence times of signals of the camshaft sensor. A decision unit is provided as to whether the position signal is formed from the occurrence times of the signals of the crankshaft sensor or from the occurrence times of the signals of the camshaft sensor.
摘要:
In a timer module having at least two output channels, the at least two output channels are configurable in such a way that they generate redundant output signals, and the generation of the redundant output signals begins synchronously. In addition, the timer module has provides a comparison of the redundant output signals by an EXOR logic operation and stores a result of the EXOR logic operation in a way that allows the result to be retained for an erroneous comparison until it is reset by an access.