DMA data transmission system based on embedded motion control board card and transmission method thereof

A technology of a data transmission system and data transmission method, which is applied in general control systems, control/regulation systems, program control, etc., can solve problems such as increasing hardware costs, and achieve the effects of reducing electrical connections, avoiding conflicts, and improving computing efficiency.
CN103676739AActive Publication Date: 2014-03-26SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2014-03-26

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Abstract

The invention discloses a DMA data transmission system based on an embedded motion control board card and a transmission method of the DMA data transmission system, wherein a self-researched embedded motion controller is adopted. The DMA data transmission system comprises an FPGA logical processing module, a DSP module and a motor control module, wherein the DMA function is embedded into the DSP module. According to the DMA data transmission method, by means of cooperative work of an upper computer, an FPGA and a DSP and reasonable distribution of a time period and a program segment, batch data interaction between the upper computer and the motion control board card and batch data interaction between internal modules of the motion control board card are achieved, and therefore accurate control over a servo motor by the motion controller is achieved.
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Description

technical field

[0001] The invention relates to the field of motor control, in particular to a DMA data transmission system based on an embedded motion control board and a transmission method thereof. Background technique

[0002] At present, most embedded motion control boards use the "bus protocol chip + FPGA + DSP" architecture to interact with the host computer for data interaction. The embedded motion control board uses a computer as the upper computer, and uses its advantages of strong computing and processing capabilities for path planning and trajectory point generation. The embedded motion control board is mainly responsible for real-time control of the actuator. At this time, optimizing the collaborative work between the host computer and the embedded motion control board and improving their respective operating efficiency are also important aspects that must be considered in high-performance CNC systems.

[0003] The DMA transmission method widely appears in the ...

Claims

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