XMOS Gigabit Ethernet TXCLK Problem

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henk
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Post by henk »

Thanks Seb,

Unexpected... Just to confirm, it is working, but these are unexpected transitions?

We will have a look at some stage.

Cheers,
Henk
welseb
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Joined: Mon May 02, 2016 6:54 am

Post by welseb »

henk wrote:Thanks Seb,

Unexpected... Just to confirm, it is working, but these are unexpected transitions?

We will have a look at some stage.

Cheers,
Henk
Hey henk,

did you already check this issue?
henk
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Respected Member
Posts: 347
Joined: Wed Jan 27, 2016 5:21 pm

Post by henk »

Hi Seb,

We think that the last byte of the CRC is repeated when DV goes low.

Would you be able to confirm that in your test setup the last byte of the CRC is something like ‘0F’; or any value where the bits associated with the wires that flip on each clock cycle are different in the two nibbles of the final byte?

Cheers,
Henk