Stm32 on board RMII ethernet #3671
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It works! And provides a full socket implementation. But some performance is lost: with a lot of memory allocated to lwIP it gives Around 750,000 bytes/sec max TCP download, compared with 1M/sec when using the TCP/IP stack on the Wiznet module. TODO: - probably put lwip polling in systick via a pending scheduled event - could update wiznet driver since it fixes the -2 bug and buf size masks that are patched here - update lwip to v2
libaxtls requires the build directory to exist, and lwip's dhcp.c can give warnings on certain gcc versions.
Instead of including sys/types.h which leads to problems with the cc3000 driver.
Dramatically improves TCP sending throughput because without an explicit call to tcp_output() the data is only sent to the lower layers via the lwIP slow timer which (by default) ticks every 500ms.
…ADME.md is created
…ects/STM32F767ZI-Nucleo/Applications/LwIP/LwIP_HTTP_Server_Netconn_RTOS/Src)
ethernetif.c --- low level driver mainly derived from STM example code network_ethernet.c --- MicroPython module code Makefile and mpconfigport.mk are modified to build these files modnetwork.c added ethernet
…ip_init becase it would be called from netif_add.
…LAY and PHY_CONFIG_DELAY from 0xfff to 0xff
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Thanks @forester3 for submitting this. I took this PR and rebased it on top current master code, cleaned it up, and made it work with the new lwIP 2.0 version. See #3808. @boochow are you aware of this PR? |
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Do |
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@dpgeorge
Perhaps, I messsaged to his blog, but he did not respond.
Since the message has not been approved and has not been published, there is no way to check
…----- Original Message -----
From: Damien George ***@***.***>
To: micropython/micropython ***@***.***>
Cc: forester3 ***@***.***>; Mention ***@***.***>
Date: 2018/5/22, Tue 11:45
Subject: Re: [micropython/micropython] Stm32 on board RMII ethernet (#3671)
Thanks @forester3 for submitting this. I took this PR and rebased it on top current master code, cleaned it up, and made it work with the new lwIP 2.0 version. See #3808.
@boochow are you aware of this PR?
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@dpgeorge I borrowed this code from ST's example project "LwIP_HTTP_Server_Netconn_RTOS" (bundled with STM32CubeMX). I did so because ethernetif.c generated by STM32CubeMX(FW_F7_V1.8.0) did not work. I agree with you that these buffers could be defined as static global arrays but I couldn't get it worked. Actually, I don't know why Rx_Buff and Tx_Buff have to be placed at the fixed address. @forester3 I am very sorry I have missed your comments on my blog. I'll answer your questions later. |
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@boochow thanks for your original work getting this going.
Ok. The license for this looks compatible with what we already have, for what we already use from the ST libraries, so that's good, we can use it.
I will try to make it work because it will be cleaner with them static globals. |
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This was superseded by #4541 (which was merged). |
I added several definitions in boards/STM32F7DISC to work on board RMII ethernet.
And I tested script in wiznet_connect.py, too.
This PR is related to #3379 PR.