Main board based on wire spring CPCI bus

A PCI bus and wire spring technology, applied in the field of embedded computer CPU motherboard, can solve the problem of not being able to meet the embedded anti-harsh environment use, etc., and achieve the effect of improving the independent controllable process of localization and improving reliability.

Inactive Publication Date: 2019-05-21
XIAN MICROELECTRONICS TECH INST
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Problems solved by technology

[0002] At present, most of the CPU processor chips used in general-purpose computer systems are imported from abroad, mainly for industrial and commercial applications, and cannot meet the requirements of embedded anti-harsh environments; for the development and use of general-purpose CPU processors in China, the current Loongson 2J processor adopts The ceramic package has

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  • Main board based on wire spring CPCI bus

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Embodiment Construction

[0025] see figure 1 The invention discloses a mainboard based on the wire spring CPCI bus, including the Loongson 2J and the Loongson 1A, the Loongson 2J is connected with the Loongson 1A through the PCI bus, and the Loongson 2J and the Loongson 1A are respectively connected with the wire spring CPCI connector J2 through the peripheral interface, Loongson 2J expands the secondary PCI bus through the PCI-PCI bridge connection, and is connected to the wire spring CPCI connector J1 through the secondary PCI bus. Loongson 1A is used to manage the peripheral interface. Loongson 2J is mainly responsible for performing operations and control in the system. Integrated standard PCI bus interface, 1GB DDR2 memory, 4-way RS232 / RS422 / RS485 serial port, 2-way 10 / 100 / 1000Mbps adaptive network interface, 4-way USB 2.0 interface, 2-way SATA interface, 1-way VGA display interface and 2-way VGA interface The CAN interface chip is used to meet the independent and controllable application require...

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Abstract

The invention discloses a main board based on a wire spring CPCI bus, a Loongson 2J processor is mainly responsible for executing operation and control in a system, a matched bridge chip Loongson 1A is used for managing various peripheral interfaces, the adaptability of the main board is improved, and the main board is used for providing CPCI bus control for the outside through PCI-PCI bridge chip, an imported CPU board card conforming to the CPCI standard can be replaced, and the localization autonomous controllable process of key products of the embedded computer system is improved. The uselevel reaches the military product level, and the device can be used in various severe environments and can be widely applied to various control fields with domestic requirements.

Description

technical field [0001] The invention belongs to the technical field of embedded computer CPU motherboards, in particular to a motherboard based on a wire spring CPCI bus. Background technique [0002] At present, most of the CPU processor chips used in general-purpose computer systems are imported from abroad, which are mainly for industrial and commercial applications and cannot meet the needs of embedded anti-harsh environments. For the development and use of general-purpose CPU processors in China, the Loongson 2J processor currently uses The ceramic packaging form achieves the military grade B. Therefore, a domestically produced high-reliability motherboard based on the Loongson 2J processor has been developed as an alternative to the imported motherboard platform. important meaning. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a main board based on the wire spring CPCI bus in view of the above-mentioned d...

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Application Information

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IPC IPC(8): G06F13/40
Inventor 许军贺占庄李志鑫刘裕李灏
Owner XIAN MICROELECTRONICS TECH INST
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