Embedded movement control card based on ARM

Abstract

An embedded motion control card based on an ARM chip in the technical field of motion control card design. In the present invention, the main control module is connected to the FPGA module, the expansion interface module, the memory module, the watchdog and the reset system module, and the power supply module respectively. The FPGA module is connected to the system clock module, GPIO module, JTAG interface module, dual-port communication module, DA module, and AD module respectively. The dual-port communication module is connected to the host computer through the PC104 bus module, and is responsible for the communication between the main control module and the host computer. Communication; the input and output signals in the DA module, AD module, and GPIO module are connected through the input and output signal interface modules and external servo drivers and switches; the present invention adopts the ARM microprocessor as the core component to realize high-speed and high-precision motion control. The number of components is reduced, the size is reduced, and the FPGA module is used to decode and plan the hardware address.

Description

technical field [0001] The invention relates to a motion control card in the technical field of numerical control, in particular to an ARM-based embedded motion control card. Background technique [0002] In the field of numerical control technology, the motion controller is the core component of digital control. The motion controller often adopts the structure of "motion control card + PC". The PC part is mainly used to realize the functions of human-computer interaction, including NC programming input, status monitoring, manual control, etc. For different applications, you can choose to use ordinary PC Or an industrial PC. The motion control card is the core unit of motion control, which can convert the predetermined control scheme instructions into the desired mechanical motion, and realize precise position, speed or torque control of mechanical motion. [0003] After searching the literature of the prior art, it was found that in the article "Realization of Robot Motio...

AI Technical Summary

Problems solved by technology

But this controller has the following disadvantages: (1) the system microprocessor adopts the processor of ARM7 architecture, and the speed is relatively slow

The system uses the serial port to communicate with the outside, which is slow, the transmission distance is limited, and the transmission method is outdated; (2) The system configuration memory is small, the Flash memory is 12MB, and the SDRAM memory is 32MB. If the software system is continuously upgraded, it cannot meet the development needs; ( 3) The system adopts the μc-OS II operating system, which provides less user APIs and poor scalability

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