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Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP
From: |
stevestrong |
Subject: |
Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP v1.4.1) |
Date: |
Fri, 4 Jan 2019 13:15:28 -0700 (MST) |
Jason, thanks for your comment.
I saw that no Rx packets were ever lost, no Rx/TX buffer over- or under-flow
ever occurred.
That finally made me think on DMA and PHY.
I realized that currently my PHY works in 100Mbp half-duplex mode, and that
could eventually be a problem, when many packets arrive and the PHY tries to
send some data in the same time (although the PHY should probably manage
this).
Then I found on Internet a site which offers a solution for DP83848, a patch
for MBED ETH lib, to work in full-duplex mode.
I implemented it, and ... voila: no more lost packets in 100 tries!
No more delayed packets. Success!
So I can conclude that the issue was most probably due to the heavy traffic
when PHY is working in half-duplex mode.
Does this make sense?
Anyway, thank you all for the invested time and effort, I really appreciate
it.
Steve
--
Sent from: http://lwip.100.n7.nabble.com/lwip-users-f3.html
- Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP v1.4.1), stevestrong, 2019/01/02
- Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP v1.4.1), address@hidden, 2019/01/02
- Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP v1.4.1), stevestrong, 2019/01/03
- Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP v1.4.1), stevestrong, 2019/01/04
- Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP v1.4.1), Jason White, 2019/01/04
- Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP v1.4.1),
stevestrong <=
- Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP v1.4.1), Jason White, 2019/01/04
- Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP v1.4.1), address@hidden, 2019/01/04
- Re: [lwip-users] Randomly delayed frame (STM32070 package including LwIP v1.4.1), stevestrong, 2019/01/05