USB-2-MDIO: speed question

Hi Cong,

I am checking the dependency (if usb-2-mdio version or msp version matters for this?) Which msp430 are you using?

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Regards,

Vikram

Hi Cong,

MSP firmware decides the MDIO frequency. Please share the link of firmware you are using.

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Regards,

Vikram

Hello Cong,

which device are you using, which EVM and which MSP430 SW revision?

There are different versions available and the clock speed can be different depending on the device flavor.

A quick solution is, to just measure the MCLK on the device.

Hope this helps! BR Ralf

Could you help me recommend a device with MDIO interface speed in 25M

we are using DP83869HM part for Media Converter Mode,according DP83869HM specification,the interface of MDC maximum clock rate is 25-MHz.

I want to know the software USB-2-MDIO can help me realize it(25MHZ)? if not ,please help me .

http://www.ti.com/tool/USB-2-MDIO

Hi Cong,

I dont know the exact frequency of MDC with the firmware you are using but it most likely will be lower MHz or KHz. We may not have firmware for 25MHz.

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Regards,

Vikram

What is the highest frequency of your firmware？and tell me where's the firmware link?

Thanks,

cong

Hi Cong,

I am still checking around but still have not found any mapping between firmware vs mdio frequency. I have asked from one more team and will get back to you in 2 days.

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Regards,

Vikram

Hi Cong,

I tried to find mapping but I could not find firmware vs mdc frequency mapping for you. Looks like testing the board with firmware is the only solution for you to find out.

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Regards,

Vikram