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Altera_Forum
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16 years ago

TSE or SGDMA related problem with concurrent tx and rx

Hi, Premise: I don't know if this problem is actually related to tse or sgdma; maybe even to Nios tse driver, although I don't think so. I'm sending and receiving Ethernet packets using t...
Altera_Forum's avatar
Altera_Forum
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16 years ago

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The other problem with that code is that it is generating a gated clock for the MAC. It isn't recommended and can lead to problems. I would rewrite the converter to use two clocks generated from a PLL instead.

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Hi Daixiwen,

I replaced the original gated clock for the MAC with another one which is simply generated from the input clock dividing by 2 without a pll. Now it works perfectly, although I've not tested it for a long time, yet.

Probably this solution is not that good and it may be susceptible to timing problems upon reprocessing.

In case of further problems I'll try to use the pll solution as you suggest.

Thank you