A multi-channel communication system based on lpc bus of Feiteng platform

Abstract

The present invention provides a multi-channel communication system based on the LPC bus of the Feiteng platform, which uses programmable logic devices supporting multiple level standards as an intermediate processing module for communication data between the Feiteng chip and multiple external devices, eliminating the need for Level conversion and protocol conversion chips are provided, and the Feiteng chip can access multiple types of external devices through one LPC bus. The circuit structure of the multi-channel communication system is simple, and the manufacturing cost is low. At the same time, the main modules of the multi-channel communication system are integrated in the programmable logic device, and only one LPC bus is needed for the data transmission of the Feiteng chip, thereby The multi-channel communication system is easy to expand, has strong real-time performance, good portability, less hardware resource requirements, and significantly reduced software workload, which greatly meets the multi-level requirements of the application system.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a multi-channel communication system based on the Feiteng platform LPC bus. Background technique [0002] The LPC (Low Pin Count, low pin interface) bus is a bus protocol proposed by Intel Corporation, which is mainly used in chip access to external devices. The LPC bus is used in the communication between the Phytium chip and external devices. Due to the defect of the Phytium chip itself, its LPC interface can only access 4-byte aligned addresses, and the voltage of the LPC interface of the Phytium chip does not match the external device, so the Phytium chip cannot Instead of directly communicating with external devices through the LPC bus, it is necessary to directly add an information conversion module between the Feiteng chip and the external device to convert the information output by the LPC interface of the Feiteng chip into information that matches the e...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a multi-channel communication system based on the LPC bus of the Feiteng platform to solve the problem of increasing the excessive hardware overhead and software overhead when the Feiteng chip communicates with multiple external devices in the prior art. cost problem

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