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SDIO equipment transmission rate detection method and system and storage medium

A technology of transmission rate and detection method, which is applied in the direction of transmission system, electrical digital data processing, instruments, etc., can solve the problem that the maximum data transmission rate of SDIO master equipment cannot be evaluated, and achieve the realization of testing and selection process, small software and hardware costs, The effect of improving transmission efficiency

Pending Publication Date: 2022-05-17
浙江科睿微电子技术有限公司
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Problems solved by technology

[0004] The embodiment of the present application solves the technical problem in the prior art that the maximum data transmission rate supported by the SDIO master device cannot be evaluated by providing a detection method for the transmission rate of the SDIO device

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  • SDIO equipment transmission rate detection method and system and storage medium
  • SDIO equipment transmission rate detection method and system and storage medium
  • SDIO equipment transmission rate detection method and system and storage medium

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Embodiment Construction

[0048] During the process of submitting this application, the applicant also found that the SDIO protocol has transmission rules formulated by the SD Card Association and has a good request and response mechanism, so it is widely used in medium-rate (10Mb-100Mb) transmission between chips. In the SDIO 3.0 / 2.0 interface protocol, there is 1 clock line, 1 command transmission line and 4 data transmission lines on the SDIO interface (transmission interface). The clock line is completely driven by the main transmission line, and the other transmission lines are bidirectional transmission. Moreover, the transmission of the command transmission line and the data transmission line both run according to the beat of the clock line. In the SDIO protocol, the transmission timing control and bus width are fixed, so the transmission speed of the interface mainly depends on the clock frequency, the higher the clock frequency, the faster the transmission efficiency. According to the transmis...

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Abstract

The invention discloses an SDIO equipment transmission rate detection method and system, and a medium. The method comprises the following steps: S1, obtaining a target pseudo-random code; s2, sending a write-in instruction to the SDIO slave device; s3, sending a reading instruction to the SDIO slave device, and receiving a verification data code returned by the SDIO device; s4, verifying the target pseudo-random code according to the verification data code; and S5, when the target pseudo-random code is successfully verified, increasing the data transmission rate, repeatedly executing the steps S2-S4 until the verification of the target pseudo-random code fails, and determining the data transmission rate corresponding to the successful verification of the target pseudo-random code at the last time as the maximum data transmission rate of the SDIO master device. By adopting the method and the device, the technical problem that the maximum data transmission rate supported by the SDIO main equipment cannot be evaluated in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method, system and storage medium for detecting transmission rates of SDIO devices. Background technique [0002] The Secure Digital Input and Output (SDIO) protocol is a data transmission protocol developed from the SD card read and write interface. In the SDIO interface protocol, the two sides of the transmission are divided into the SDIO master side (host) and the SDIO slave side (SDIO card). At the same time, a number of registers (also called storage areas) are specified inside the SDIO interface. The SDIO master side can read the highest / maximum data transfer rate it supports by reading the register on the SDIO slave side, and thus determine its actual data transfer rate. [0003] However, in practical applications, the maximum data transfer rate actually supported by the SDIO master device (or SDIO interface) does not entirely depend on the maximum data transfer ...

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Application Information

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IPC IPC(8): H04L43/0894H04L43/50G06F13/42
CPCH04L43/0894H04L43/50G06F13/4282
Inventor 王雷蔺小满尉志伟
Owner 浙江科睿微电子技术有限公司
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