Dual-port RAM (Random-Access Memory) reading-writing channel switching and distributing module having program-controlled function

Abstract

The invention discloses a dual-port RAM (Random-Access Memory) reading-writing channel switching and distributing module having a program-controlled function. The dual-port RAM reading-writing channel switching and distributing module comprises a one-to-many dual-port RAM address / control / data signal distributor, a channel gating control address buffering sub-unit, a dual-port RAM address / control signal receiving and buffering sub-module, a dual-port RAM address / control signal transmitting and buffering sub-module, a dual-port RAM data signal bilateral buffering sub-module A, a dual-port RAM data signal bilateral buffering sub-module B, an indicating circuit sub-module, a clock circuit and a power supply sub-unit. Through adoption of the dual-port RAM reading-writing channel switching and distributing module, time-sharing multiplexing of one channel of a dual-port RAM communication card can be realized; a function of serial communication with dual-port RAM storages of over one set of tested products is realized; the quantity of dual-port RAM communication cards in a test computer system of over one set of tested products is reduced; the hardware cost is saved; the cost performance is high; and convenience is brought to integration and application.

Description

technical field [0001] The invention relates to a dual-port RAM read-write channel switching distribution module with program control function, which realizes program control one-to-many ( For example: 1 to 5) switch distribution control function, so that a single dual-port RAM read-write channel in the measurement and control computer system can realize time-division multiplexing with dual-port RAM read-write channels of multiple tested products. [0002] The switch distribution module can effectively improve the test efficiency of dual-port RAM read-write channels of multiple sets of products, greatly reduce the cost of test systems or equipment, and save resources and space. The invention belongs to the fields of computer communication, computer aided testing and automatic testing. Background technique [0003] In the modern intelligent navigation guidance control system, with the increase of the amount of information and the improvement of real-time requirements, it is ...

AI Technical Summary

Problems solved by technology

If the method of configuring multiple dual-port RAM communication cards in the test computer system is adopted, a large amount of hardware and software resources have been wasted, and at the same time limited by the expansion capability of the test computer system, the number of dual-port RAM communication cards to be increased is very limited and cannot Meet the dual-port RAM communication requirements of a large number (for example: ≥ 5 sets) of tested products

At present, there is no module that can realize multi-channel dual-port RAM communication channel multi-choice switch assignment function

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