Method for detecting reliability of data communication of synchronous serial communication

Abstract

The invention provides a method for detecting reliability of data communication of synchronous serial communication, relates to the technical field of communication detection, and is used for solving the technical problem of the reliability of the data communication of synchronous serial communication. A data frame format used in the method comprises a two-bit header, a two-bit address choice, an eight-bit communication data, a one-bit feature bit, a two-bit flag bit and a one-bit mark bit. The method comprises the following steps: 1) sending the front 13 bits by a data communication initiator according to the format, monitoring a feedback data of a receiving terminal at real time, and comparing; 2) if the result is correct, sending '00'on the two-bit flag bit, and if not, sending '11'; and 3) if a receiver has any fault bit in detection process, abandoning the data and requiring for resending through the last one-bit mark bit, and if any bit is correct, transferring the last one-bit mark bit '0'and receiving the next frame data. The method provided by the invention has the advantages that the operation is simple, the comparison is reliable and the treatment is timely.

Description

technical field [0001] The invention relates to communication detection technology, in particular to a detection technology applicable to a method for detecting the reliability of synchronous serial communication data communication, so as to improve the reliability of data transmission. Background technique [0002] In an embedded system, there are generally multiple boards, so there must be data interaction between them, and there is also a problem of data interaction reliability. At present, data interaction usually adopts parallel data bus or serial communication. [0003] Since the parallel data bus is directly extended by the embedded processor, it generally has a higher rate, more signals, limited transmission distance, and is susceptible to interference, which leads to data reliability problems; [0004] Serial communication mainly uses buses such as UART (asynchronous serial communication) or CAN (controller area network), which have strong anti-interference ability...

AI Technical Summary

Problems solved by technology

[0003] Since the parallel data bus is directly extended by the embedded processor, it generally has a higher rate, more signals, limited transmission distance, and is susceptible to interference, which leads to data reliability problems;

[0004] Serial communication mainly uses buses such as UART (asynchronous serial communication) or CAN (controller area network), which have strong anti-interference ability and long transmission distance, and the reliability of data communication can be guaranteed by various verification methods , but there are high requirements for the system, each board must have an embedded processor to realize this type of interface, which leads to an increase in the complexity of the system, which is not conducive to production and maintenance

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