FPGA-based multipath signal selection method and system, electronic device and storage medium

Abstract

The invention provides an FPGA-based multipath signal selection method and system, an electronic device and a storage medium, and the method comprises the steps: presetting a truth table in an FPGA internal register, and determining a data address corresponding to each business board; receiving a control instruction, and configuring storage information of the control instruction in an internal register of the FPGA; according to a mapping relation between a data address of the control instruction and an address element item of a truth table, sending data information of the control instruction to a corresponding service board; after receiving the corresponding data information, the service board sends or does not send a response signal in at least two clock periods; and accessing each service board in sequence, and establishing communication connection with the service board when the response signal is acquired. The system is mainly provided with a main control board and an external service board, the main control board mainly comprises an FPGA (Field Programmable Gate Array) and a clock chip, the FPGA can realize external interaction of signals, the clock chip provides a clock for the FPGA to ensure normal sampling of the chip, and the service board can realize different functions according to actual requirements.

Description

technical field [0001] The invention belongs to the field of selection algorithms, and in particular relates to an FPGA-based multi-channel signal selection method, system, electronic device and storage medium. Background technique [0002] In the process of digital signal transmission, sometimes it is necessary to select a certain channel of data from multiple input data to complete the transmission of this channel of data. The traditional method is to use a multiplexer to achieve, but the multiplexer has the following problems to be solved: [0003] 1. The complexity of hardware design increases, requiring designers to be more careful. [0004] A multiplexer, usually one input and multiple outputs. In circuit design, input signals and output signals need to be considered; in PCB layout, the complexity of wiring needs to be considered, including line length, line spacing, space size, etc., and the impact of adding devices on signals should also be considered. [0005] 2....

AI Technical Summary

Problems solved by technology

[0005] 2. The scalability is poor, and it needs to be carefully considered in combination with the application scenarios

If the early design is inconsistent with the later use, it will cause loss of function or waste of resources

For some products, the actual application occasions are changeable, which will bring troubles to the early design, and may cause problems of over-design or under-design

Images