A dual-port ram read and write channel switching distribution module with program control function

Abstract

A dual-port RAM read-write channel switching distribution module with program control function, which includes a one-to-many dual-port RAM address / control / data signal distributor, a channel gating control address buffer subunit, and a dual-port RAM address / controller Signal receiving buffer sub-module, a dual-port RAM address / control signal sending buffer sub-module, a dual-port RAM data signal bi-directional buffer sub-module A, a dual-port RAM data signal bi-directional buffer sub-module B, an indication circuit sub-module, a clock circuit and a power supply electronic unit; the present invention can realize time-division multiplexing of one channel of a dual-port RAM communication card, thereby realizing the serial communication function with more than one set of dual-port RAM memories of the product under test, and reducing the number of tests by more than one set The number of dual-port RAM communication cards in the test computer system of the product under test saves hardware costs, is cost-effective, and is easy to integrate.

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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