Board system and FPGA (Field Programmable Logic Array) online update method of communication interface cards

Abstract

The invention relates to the technical field of communication and discloses a board system, aiming at solving the problems that an FPGA (Field Programmable Logic Array) online update mode is inapplicable for the FPGA online update of a separated type system of a motherboard plus multiple communication interface cards in the prior art, and the update mode is high in cost and low in reliability. The system comprises a motherboard and n interface cards, wherein the motherboard comprises a CPU (Center Processing Unit), a CPLD (Complex Programmable Logic Device) unit and n slot positions; each slot position is connected with the CPLD unit; the CPLD unit is connected with the CPU; the n interface cards are connected onto the n slot positions in a plugging and one-to-one correspondence way through n connectors so as to realize signal interconnection with the motherboard; as an integer, n is greater than or equal to 2; the CPLD unit comprises a gating module and a counting module; the interface cards comprise an FPGA unit, a selector switch, a main flash module and a slave flash module; the main flash module and the slave flash module are connected with the FPGA unit through the selector switch. In addition, the invention also discloses an FPGA online update method of the communication interface cards, which is applicable for the separated type system of the motherboard plus the multiple interface cards.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a board system and an FPGA online upgrade method for a communication interface card. Background technique [0002] In order to flexibly respond to the needs of users in various industries, a large number of communication devices such as routers adopt modular design. The same main board can realize multiple interface access by configuring different communication interface cards, providing customers with rich, fast and flexible networking. Way. Due to the large variety of communication interface cards and the rich interface types, FPGA (field-programmable logic device, field programmable gate array) chips are often used in the design of communication interface boards to implement functions such as interface protocols or interface control. [0003] Designers use Verilog or VHDL language (hardware description language, hardware description language) to program, and generate co...

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: propose a kind of board system and communication interface card FPGA online upgrade method, solve the FPGA online upgrade method in the traditional technology that is not suitable for the FPGA online upgrade of the motherboard+multi-communication interface card separation mode system, and upgrade The method has the problems of high cost and low reliability

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