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Anti-jamming multichannel data transmission method based on capacity prediction

A data transmission method and multi-channel technology, applied in the field of anti-blocking multi-channel data transmission based on capability prediction, can solve the problems of occupied transmission bandwidth, multi-chip memory, consumption, etc., to reduce bandwidth occupation, release CPU resources, reduce The effect of mutual information

Active Publication Date: 2013-11-13
STATE GRID ANHUI ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, when this data transmission method is used, the descriptor information needs to be exchanged twice between the CPU and the peripheral device for each message, which occupies the transmission bandwidth; in addition, the descriptor is stored in the peripheral device, which consumes more on-chip memory

Method used

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are further described below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] An embodiment of the present invention provides an anti-blocking multi-channel data transmission method based on capability prediction, which includes two parts: data receiving and data sending, wherein,

[0027] The data receiving includes the following steps:

[0028] Step 1.1: Create an address cache in the CPU, and write the relevant information of the address cache into the programmable logic device;

[0029] Optionally, the a...

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Abstract

The invention provides an anti-jamming multichannel data transmission method based on capacity prediction. The method comprises a data receiving part and a data transmitting part; and a multistage caching structure and an active DMA (Direct Memory Access) technology are adopted, and a capability prediction mechanism is combined. According to the technical scheme of the invention, interaction information among a CPU (Central Processing Unit) and a peripheral is reduced, the occupation of bandwidths is reduced, CPU resources are released, and chip resources are saved, so that jamming among each piece of virtual equipment of the multifunctional peripheral is avoided, and the transmission bandwidth of each piece of virtual equipment is ensured.

Description

technical field [0001] The invention relates to the field of data transmission, in particular to an anti-blocking multi-channel data transmission method based on capability prediction. Background technique [0002] At present, data is transmitted between the host and the multi-function peripheral through a high-speed interface. "Multi-function peripheral" refers to a peripheral that implements multiple virtual devices with the same or different speeds. For example, power quality detection equipment usually implements various virtual devices such as FT3, Ethernet, AD acquisition, and DA conversion on a programmable chip, and a high-speed interface such as PCIE is used between the programmable chip and the CPU. In the prior art, data is transmitted and received mostly by means of interactive descriptors between the CPU and peripherals: the chip internally creates a sending buffer pool for each virtual device, and the peripherals schedule and send data according to the state of...

Claims

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Application Information

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IPC IPC(8): G06F12/08G06F13/38G06F12/0853G06F12/0897
Inventor 程辉辉邓政王涛郑容高保红袁成伟
Owner STATE GRID ANHUI ELECTRIC POWER
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