Controller and implementation method for self-checking serial bus

Abstract

The invention provides a controller and an implementation method for a self-checking serial bus. The controller for the self-checking serial bus comprises a clock generating module, a serial bus self-testing module, a condition line monitoring module, a serial bus setting and control module, a parallel bus conversion interface, a synchronous to asynchronous conversion module, a serial address first-in-first-out (FIFO) cache module, a serial data FIFO cache module, a serial bus protocol decoding implementation and data verification unit and an interrupt line extension module. According to the controller and the implementation method for the self-checking serial bus, automatic error diagnosis and correction functions are provided, reliable control and data transmission of a master control central processing unit (CPU) in a microwave measuring instrument to all function boards can be achieved, high-speed transmission of data and flexible control of circuit units can be guaranteed, bus decoding units on the function boards can be implemented conveniently, and the serial bus can be used for interconnection communication among instruments.

Description

technical field [0001] The invention relates to the field of microwaves, in particular to a self-checking serial bus controller, and also to a method for realizing the self-checking serial bus. Background technique [0002] Because microwave measuring instruments work in the microwave frequency band from a few Hz to dozens or even hundreds of GHz, and have various working states such as pulse and continuous wave, the electromagnetic radiation of internal microwave devices and microwave units is relatively strong and the bandwidth is relatively large. Instruments are often used in industrial testing environments where external electromagnetic interference is relatively strong. At present, most microwave test instruments use the industrial computer module as the main control CPU to control the various function boards inside the instrument. The industrial computer module generally provides a standard PCI bus, ISA bus or PCI-E bus, and then designs SPI on the motherboard of the ...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a self-checking serial bus controller, which solves the problem that the internal bus of the existing microwave measuring instrument cannot guarantee the closed-loop reliable transmission of data from the main control CPU to the target units of each functional board of the instrument motherboard

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