Hardware tcp/ip protocol stack device with active and passive transfer modes

Abstract

The invention discloses a hardware TCP / IP protocol stack possessing active and passive transmission modes. The protocol stack comprises a data interface module, a TCP / IP protocol stack core module, a MAC module and a PHY chip. The TCP / IP protocol stack core module comprises a frame analysis unit, a network management unit, a frame packaging unit, a high speed hardware sending channel and a software sending channel. In the invention, two kinds of interfaces of a hardware transmission channel and a software transmission channel are simultaneously possessed, which provides great convenience for application layer function realization. The design possesses high flexibility and the structure is clear so that the protocol stack can be widely used for embedded sensing equipment. In the invention, priorities of responses of ARP, ICMP, TCP response and transmit and receive and the like are provided; and in a subsequent design, if a UDP protocol needs to be used or other protocols are added, a packaging and analysis module of a corresponding protocol only needs to be increased and the protocol can be realized.

Description

technical field [0001] The present invention relates to the technical fields of application-specific integrated circuit design and high-speed network transmission. Specifically, the present invention designs a hardware TCP / IP protocol stack device with active and passive transmission modes. The protocol stack has high-speed active transmission mode and flexible The passive transmission mode is very suitable for embedded sensing devices. Background technique [0002] With the popularization of network technology and the development of information technology, more and more embedded sensing devices need to transmit the collected sensing data such as temperature, vibration and pressure to servers and other background devices through network interfaces. When the number of data collection nodes increases and the collection frequency becomes higher, the sensing device will require a high network transmission rate. For example, the sensing information of each node is represented by...

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Problems solved by technology

When the sensing data stream is transmitted at high speed and uninterruptedly through the host interface module, it is difficult for this design to send and receive interactive information

Secondly, there are deficiencies in the design of network management functions in the above-mentioned existing documents, and there is no priority design for different protocol responses

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