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Re: [lwip-users] TCP Out-Of-Order/Retransmission/Connection closed issue
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From: |
Axel Lin |
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Subject: |
Re: [lwip-users] TCP Out-Of-Order/Retransmission/Connection closed issue |
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Date: |
Tue, 29 Aug 2017 23:51:53 +0800 |
2017-08-28 21:58 GMT+08:00 Sergio R. Caprile <address@hidden>:
> Looks like memory trashing, I guess you are not using DMA on your serial,
> are you ?
Hi Sergio,
I have DMA enabled for the serial driver.
But I don't underandnd why enable DMA or not has impact on the issue.
I thought DMA is to reduce CPU loading, should be no other impact.
I don't quite understand the meaning of "memory trashing", and how can I test
to make sure the issue is because of "memory trashing" or not?
Thanks,
Axel