Abstract
This article designs a servo control card based on PCI9052 for the motor control of large CNC cutting machine. The design contains the hardware design of circuit and the software design of drive. The hardware design used PCI9052 to realize the communication of the host and the PCI bus, and realized the internal logic control of data communication on hardware circuit of CPLD by Verilog HDL language. Devised the hardware system principle and PCB diagram, producted circuit board by Altium Designer 6.9, and and finally debugged successly. The software driver design analyzed the relationship between Linux kernel and the device driver, proposed the servo control card design process according to the structure of Linux device driver, completed the identification and communication to servo control card by Industrial PC. The analog, switch and pulse transmission integrated on the same circuit board is different from previous, and it obtained a stable application in a number of CNC equipments.
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