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A data transmission device and method

A data transmission device and data technology are applied in the field of data processing to achieve the effects of improving reliability, high timeliness, and improving stability and reliability.

Active Publication Date: 2022-02-11
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a data transmission device and method to solve the problem of metastable state in the transmission of large-capacity data under the asynchronous clock in the prior art, and to achieve the effect of eliminating the metastable state of data transmission.

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  • A data transmission device and method
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  • A data transmission device and method

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but 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.

[0031] According to an embodiment of the present invention, a data transmission device is provided. see figure 1 A schematic structural view of an embodiment of the device of the present invention is shown. The data transmission device may include: an AHB bus 10 , a storage unit 20 and a KDP module 30 .

[0032] Wherein, the AHB bus 10 can be used for data tran...

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Abstract

The invention discloses a data transmission device and method, the device comprising: an AHB bus (10), a storage unit (20) and a KDP module (30); wherein the storage unit (20) is used to receive the The data transmitted by the AHB bus (10) is buffered under the asynchronous clock and the synchronous clock, and the data is output to the KDP module (30) at a set speed under the synchronous clock. The scheme of the present invention can solve the problem of metastable state in the transmission of large-capacity data under the asynchronous clock, and achieve the effect of reducing the difficulty of large-capacity data transmission.

Description

technical field [0001] The invention belongs to the technical field of data processing, in particular to a data transmission device and method, in particular to a device and method for synchronizing data with a Streamfifo based on an AHB (Advanced High-Performance Bus, Advanced High-Performance Bus) bus. Background technique [0002] When designing a system, the processor and peripherals work at different clock frequencies, and when data is transmitted between different modules, the First Input First Output module plays a very important role. Among them, the processor: that is, the core of the MCU, such as the Coretex M0 and M4 of the ARM company. Peripherals: mainly memory-related peripherals, such as Nanflash, DMA, SAI audio, etc. [0003] Streamfifo includes two types of FIFO, including asynchronous Asyncfifo and synchronous Syncfifo. Synchronous Syncfifo can be completed using dual-port RAM and read and write pointers. Asyncfifo needs special processing in design to avo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/12G06F13/16
CPCG06F13/124G06F13/1673
Inventor 邹承辉潘振星胡小龙
Owner GREE ELECTRIC APPLIANCES INC