Data transmission method and device

A technology of data and data packets, applied in register devices, machine execution devices, electrical digital data processing, etc., can solve problems such as easy access conflicts, system errors, and low system processing bandwidth

Active Publication Date: 2020-02-21
西安联飞智能装备研究院有限责任公司
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Problems solved by technology

[0006] The embodiment of the present invention provides a data transmission method and device, which are used to solve the problem that the writing and reading of data in the asynch

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  • Data transmission method and device

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0051] figure 1 It exemplarily shows a schematic flowchart of a data transfer method provided by an embodiment of the present invention, and the method can be applied at least in asynchronous system data storage and reading.

[0052] Such as figure 1 As shown, the method mainly includes the following steps:

[0053] Step 101, receiving the complete storage signal sent by the D port, generating an update flag register setting command according to the current ...

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Abstract

The invention discloses a data transmission method and a data transmission device, which are used for solving the problems of low system processing bandwidth, easiness in access conflict and system errors due to the fact that writing and reading of data in an asynchronous system can only be executed by one port in the prior art. The method comprises the following steps: receiving a storage completion signal sent by a D port, and generating an update identification register setting command according to the current state of a buffer; sending the update identification register setting command toan update identification register, so that the update identification register sets the current state of the update identification register mapped to the D port to be updated according to the update identification register setting command; wherein the current state of the buffer comprises a filled state and an unfilled state.

Description

technical field [0001] The present invention relates to the technical field of digital communication, and in particular to a data transmission method and device. Background technique [0002] The flight control system of industrial drones is a safety-critical system. The asynchronous system formed by the internal processor chip of the flight control computer and the FPGA (Field-Programmable Gate Array, Chinese is Field Programmable Logic Gate Array) chip in the flight control system requires For data transfer. The safe and stable operation of internal data transmission plays a very critical role. [0003] The traditional data transfer method uses a dual-port RAM (random access memory) for data storage, and then uses a lock register (one for each of the dual ports) and an update flag register to control dual-port access to avoid data access conflicts. In practical applications, the lock register is used to lock the strobe signal. When the lock register is written into 1, th...

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Application Information

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IPC IPC(8): G06F9/30G06F12/0877
CPCG06F9/30101G06F9/30141G06F12/0877
Inventor 季雷唐甜王琦王涛宋乐
Owner 西安联飞智能装备研究院有限责任公司
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