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DMA configuration mode and interrupting method based on ADSP-BF60x network communication

A technology of network communication and configuration mode, applied in the field of network communication, can solve problems such as data loss, and achieve the effect of ensuring accuracy and integrity, facilitating collection and ensuring integrity

Inactive Publication Date: 2016-08-10
深圳深宝电器仪表有限公司
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Problems solved by technology

[0006] In order to improve the transmission quality of DMA and solve the problem of data loss, the present invention provides a DMA configuration mode and interrupt method based on ADSP-BF60x network communication

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  • DMA configuration mode and interrupting method based on ADSP-BF60x network communication
  • DMA configuration mode and interrupting method based on ADSP-BF60x network communication
  • DMA configuration mode and interrupting method based on ADSP-BF60x network communication

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Embodiment Construction

[0024] A DMA configuration mode and interrupt method based on ADSP-BF60x network communication of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] Such as Figure 1 to Figure 3 As shown, a kind of DMA configuration mode based on ADSP-BF60x network communication of the present invention, in the DMA data transmission based on ADSP-BF60x network communication, according to DMA transmission requirement, configure two sets of DMA transmission sequences based on descriptors, including the first One transmission sequence and the second transmission sequence; Utilize this DMA configuration mode, a kind of interrupt method based on ADSP-BF60x network communication of the present invention is: DMA channel is after the first transmission sequence transmission completes, and immediately starts to interrupt, promptly starts the second Transmission sequence transmission; after the second transmission sequence transmissio...

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Abstract

The present invention provides a DMA configuration mode and interrupt method based on ADSP-BF60x network communication, aiming at processors with DMA data in ADSP-BF60x series, to realize high-speed communication data processing; in DMA data transmission, two sets of configurations are used in rotation The DMA high-speed transfer interrupt method used. In order to meet the requirements of DMA transfer, configure two sets of descriptor-based DMA transfer sequences; the DMA transfer sequence corresponds to allocate a group of memory in the chip, and move the data in the physical channel to this group of memory during DMA transfer, and set The DMA channel starts the second serial transmission immediately after the first serial transmission is completed; immediately starts the first serial transmission after the second serial transmission is completed. The two DMA series use two sets of configurations for transmission in rotation, and the two sequences switch back and forth, which greatly improves the transmission quality of DMA and solves the problem of data loss.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a DMA configuration mode and an interruption method based on ADSP-BF60x network communication. Background technique [0002] The world's leading supplier of high-performance signal processing solutions, ADI's high-performance ADSP-BF60x series Blackfin processors are widely used in advanced automotive driver assistance systems (ADAS), industrial machine vision, instrumentation, power / motor control, and security / monitoring system, etc. Among them, ADSP-BF608 and ADSP-BF609 processors use direct memory access (DMA) to carry out network communication between storage spaces or between storage spaces and peripherals to transmit data. Descriptor-based DMA transfers in the prior art require a set of parameters to be stored in memory to start a DMA sequence; descriptor-based DMA transfers link multiple DMA sequences and set the DMA channel to automatically set up after t...

Claims

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Application Information

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IPC IPC(8): H04L12/861
CPCH04L49/9073
Inventor 周启华干体兵徐声张敏
Owner 深圳深宝电器仪表有限公司
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