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Flat machine numerical control system based on field programmable gate array (FPGA) high-speed communication method

A communication method and technology of numerical control system, applied in the direction of digital control, electrical program control, etc., can solve the problem that serial communication cannot meet the high-speed communication requirements of CNC system of flat knitting machine, etc., and achieve strong anti-interference, versatility, and high integration. and stability, improving the effect of weaving efficiency

Inactive Publication Date: 2011-02-09
ZHEJIANG SCI-TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the speed of serial communication can no longer meet the high-speed communication requirements of the CNC system of flat knitting machines

Method used

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  • Flat machine numerical control system based on field programmable gate array (FPGA) high-speed communication method
  • Flat machine numerical control system based on field programmable gate array (FPGA) high-speed communication method
  • Flat machine numerical control system based on field programmable gate array (FPGA) high-speed communication method

Examples

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Effect test

Embodiment

[0024] Embodiment: a kind of flat knitting machine numerical control system based on FPGA high-speed communication method, as figure 1 with figure 2 As shown, it includes the management layer with ARM module, the coordination layer and execution layer with DSP module and FPGA module, and a dual-port RAM high-speed communication module is built between the ARM module and FPGA module. pin. The ARM module is S3C2440, the DSP module is TMS320LF2812, the FPGA is EP3C10E144C8, and the dual-port RAM core module is an M9K module embedded in the FPGA. There is a dual-port RAM high-speed communication module between the ARM module and the FPGA module, as well as the rich logic resources inside the FPGA module. The dual-port RAM high-speed communication is realized by software programming to match the signals of each layer.

[0025] The dual-port RAM high-speed communication module includes four sub-modules: dual-port RAM core module, double-ended bus interface matching module, PLL mo...

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Abstract

The invention relates to a flat machine numerical control system based on a field programmable gate array (FPGA) high-speed communication method. The flat machine numerical control system comprises a management layer with an ARM module, a coordination layer with a DSP module and an FPGA module and an execution layer, and is characterized in that a dual-port RAM high-speed communication module is arranged between the ARM module and the FPGA module and is provided with independent valid read / write pins. The invention has the following obvious substantive characteristics: the dual-port RAM high-speed communication module is arranged and is provided with the independent read / write pins, so that signals of each layer are matched and are prevented from holding time and conflicting; and the data communication efficiency between the management layer and the coordination layer is improved by a method of adopting abundant logical resources in the FPGA module to realize dual-port RAM high-speed communication in a software programming mode, thus the weaving efficiency is improved. By adopting the control method of the control system, the communication speed is improved, and the control system has the characteristics of strong anti-interference performance, good generality and the like.

Description

Technical field [0001] The invention relates to a flat knitting machine numerical control system, in particular to a flat knitting machine numerical control system based on an FPGA high-speed communication method, which improves the data communication efficiency between a management layer and a coordination layer. Background technique [0002] There is high-speed data communication between the management layer and the coordination layer in the flat knitting machine CNC system. The efficiency and stability of data communication between the two layers directly affects the performance of the entire system. At present, serial communication methods are mainly used, such as RS232 / 485, CAN, etc. However, the speed of serial communication can no longer meet the high-speed communication requirements of the CNC system of flat knitting machines. Contents of the invention [0003] The purpose of the present invention is to provide a high-speed reversing control method and control sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/414
Inventor 胡旭东张华史伟民彭来湖张建义张丹
Owner ZHEJIANG SCI-TECH UNIV
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