The invention provides a Loongson-based CPCI (Compact Peripheral Component Interconnect) domestic vehicle-mounted computer. The Loongson-based CPCI domestic vehicle-mounted computer The CPU board is provided with a plurality of CPCI interfaces, and the plurality of CPCI interfaces are respectively connected with a CAN communication board for realizing CAN communication, a COM board for receiving and transmitting serial port data, an AD board for supporting analog-to-digital conversion and a DA board for supporting digital-to-analog conversion; the CAN communication board, the COM board, the AD board and the DA board all take FPGA chips produced in China as main control chips; the core main control chip of the CPU board is a Loongson chip. Based on the Loongson chip design, foreign computers can be equivalently replaced in the field of special vehicle-mounted computers; the microcontroller has the capability of working in a severe environment, and can effectively solve the problem that many microcontrollers cannot meet the working conditions under the conditions of high humidity, strong salt mist, strong vibration, low temperature and high temperature; the response speed can reach the ns level, and the performance meets the requirements of equipment of the existing model; the device has the advantages of simple structure, flexibility in control, stability in operation, high reliability, easiness in maintenance, low cost and the like.
本发明提供了一种基于龙芯的CPCI国产化车载计算机,包括CPU板;所述CPU板板载多路CPCI接口,多路CPCI接口分别接入有用于实现CAN通信的CAN通信板、用于串口数据收发的COM板、用于支持模数转换的AD板、用于支持数模转换的DA板;CAN通信板、COM板、AD板、DA板均以中国产FPGA芯片为主控芯片;CPU板核心主控芯片为龙芯芯片。本发明基于龙芯芯片设计,特种车载计算机领域可实现对国外计算机的同等替代;具有在恶劣环境下工作的能力,可以有效地解决在高湿度,浓盐雾,强振动,低温高温条件下许多微控制器不满足工作条件的问题;响应速度可达到ns级,性能满足现有型号设备需求;具有结构简单、控制灵活、运行平稳、高可靠性、易于维护和成本低等优点。
Loongson-based CPCI (Compact Peripheral Component Interconnect) domestic vehicle-mounted computer
一种基于龙芯的CPCI国产化车载计算机
2023-12-29
Patent
Electronic Resource
Chinese
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