Electronic jacquard machine control system based on FPGA

Abstract

The invention discloses an electronic jacquard machine control system based on an FPGA. An SDRAM controller in an FPGA chip is connected to an SDRAM storage chip by an address, data and a control signal; a corresponding pin of the FPGA chip is connected with a serial configuration memory EPCS16; both a weft selecting signal and a coder signal are directly connected with the FPGA chip by one general I / O pin; and a pattern output module and an SD storage card are respectively connected with the FPGA chip by the other I / O pin. A Nios II / f kernel embedded with the FPGA is interactive with PIO peripheral equipment, an IO port control module, an EPCS controller, an SPI mode controller and an SDRAM controller by an Avalon bus. The electronic jacquard machine control system adopting the FPGA embedded into a Nios II / f system, a serial configuration device, the SD storage card and the pattern output module as kernels has flexible hardware design and short development period, solves the problem of low data transmission speed and pattern file storage content of the prior jacquard machine control system and realizes electronic jacquard weaving at large stitch and high speed.

Description

technical field [0001] The invention relates to an electronic jacquard control system, in particular to an FPGA-based electronic jacquard control system. Background technique [0002] The electronic jacquard machine uses an electronic control mechanism to replace the mechanical jacquard faucet, and realizes jacquard weaving by controlling the ups and downs of warp yarns of various colors and the movement of the shuttle. It has simple structure and high speed, and has been widely used at home and abroad. At present, the jacquard machines developed by the British Bonas company, the Swiss Staubli company and the German Gross company represent the production and application level of electronic jacquard machines in the world. Up to now, although foreign electronic jacquard machines are at the advanced level, and their electronic jacquard machine control systems are also at the top in the world, the jacquard machine control systems of the above-mentioned manufacturers all have th...

AI Technical Summary

Problems solved by technology

[0003] The first stage: Firstly, the control box realized by single-chip microcomputer appeared. The design is relatively simple and the cost is relatively cheap. However, due to the limitation of the single-chip function, the functions are not rich enough, and there is no operating system. The scalability of the system function is not strong, and it is not easy to upgrade. , it is difficult to meet the requirements of users

[0004] The second stage: PC104 to realize the control system, but the cost of PC104 is high, and the interface control is inconvenient

At present, the ARM processor is the most used. Although the function is relatively powerful, the development cycle is long, the hardware circuit is complicated, and it is difficult to meet the actual needs.

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