Serial port driving system based on PCI bus

Abstract

The invention discloses a serial port driving system based on a PCI bus. The system comprises equipment to be driven, a PCI module, an FPGA control module and a serial port link module. The equipmentto be driven is connected with the PCI module through a PCI bus. The FPGA control module is connected with the PCI module and the serial port link module, the serial port link module is connected withexternal communication equipment through a serial port, the PCI module comprises a PCI bus controller and an EEPROM, the PCI bus controller is used for connecting a PCI bus and a local bus, and the EEPROM is used for storing configuration information of an internal register of the PCI bus controller; the FPGA is used for controlling a read-write time sequence of the serial port controller, resetting the serial port controller and interrupting a switch serial port; and the serial port link module is used for data interaction with the FPGA and external communication equipment so as to realize communication between the equipment to be driven and peripheral serial port communication equipment through a PCI bus.

Description

Technical field [0001] The invention belongs to the field of serial port communication, and specifically relates to a serial port drive system based on a PCI bus. Background technique [0002] In recent years, domestic research on localized embedded operating systems has begun to become a hot spot. As an excellent localized operating system, ReWorks has achieved better effectiveness, commerciality, scalability and interoperability than other real-time operating systems. It is widely used in high-precision technology and real-time requirements such as communications, military, aviation, and aerospace, such as satellite communications, military exercises, ballistic guidance, and aircraft navigation. [0003] However, in the ReWorks embedded operating system, it is often necessary to control external devices and communicate with them. The serial port is the easiest, most common, and most widely used interface between each external device and the motherboard operating system. The seria...

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a PCI bus-based serial port drive system, aiming to solve the technical problem that the ReWorks embedded operating system uses the serial port bus for communication, which will reduce the transmission efficiency of communication data

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