So you're using GPIO17 output mode for Ethernet RMII Clock. Something you need to check: 1. You're not using a ESP32 with a PSRAM, because PSRAM also take on this GPIO. 2. Make sure you have connected GPIO17 to LAN8720's REFCLOCK (and LAN8720's clock mode has been set to using external clock by some...

yrnaaa wrote: ↑

Mon Jan 21, 2019 9:55 am

您好！

在用例程simple_sniffer接收wifi数据包时老是丢包，是否有什么改进办法？

谢谢

你好，sniffer capture的示例已经被更新，已知的bug已被修复。
https://github.com/espressif/esp-idf/tr ... le_sniffer

Can you show how you connect LAN8720 with ESP32-DevKitC? And the sdkconfig file?

And I would suggest you see this first: https://github.com/espressif/esp-idf/pull/1127

好的，感谢你的提议，我们未来会考虑加入websocket组件，也欢迎你们去github提PR。

如果您有关于websocket的项目开发，目前可以参考这里：

https://github.com/nkolban/esp32-snippe ... Socket.cpp

Hmm, Really ? None of the ESP guys are willing to help? Sorry for the delay. So finally this an issue about the tcp/ip stack. right? The Github issue you mentioned has been reopend. Some one will soon reply on it. And could you please give us more detailed information about your issue? The original...

aureoleday wrote: ↑

Fri Dec 21, 2018 8:02 am

@In逍遥子 wrote: ↑

Wed Dec 19, 2018 7:01 am

乐鑫官方没有发布 RT-Thread 的开发包，GitHub 上有个人仓库可以参考 Link（https://github.com/BernardXiong/rtthread-esp-idf） 学习。

这个我试了，编译不通过，没法用啊

IIRC，Bernard的代码是根据idf2版本做的移植，你尝试可以去那里提交issue

当然支持命令行终端，还支持命令补全，记录历史命令。 IDF中有console组件，推荐你阅读以下文档： https://docs.espressif.com/projects/esp-idf/zh_CN/latest/api-guides/console.html 此外，IDF还提供了较多基于console组件的非常有用的example（比如i2c-tool, iperf），可以借鉴学习其具体的使用方法。 https://github.com/espressif/esp-idf/tree/master/examples/system/console https://github.com/esp...

读PHY寄存器为0xFFFF通常情况可以这样排查：
1. 检查MDIO和MDC的接线是否错误
2. 检查RMII需要的50MHz时钟是否正常
3. 检查PHY地址是否配置正确（包括软件和硬件）
这里强烈建议，检查一遍控制PHY地址的strap引脚，不要悬空，**不要默认**！确保这些strap引脚已经被外部电阻上拉或者下拉了。

另一方面，如果还是不够确定PHY地址究竟是多少，可以在软件中尝试设置PHY地址从0开始到31，然后读取PHY ID寄存器，看看是否能够读到正常的数据，如果正确，记录下当前PHY地址。

FYI, you want to create a point-to-point link between two Ethernet MAC. There's a kind of interface call RevMII(Not RMII) which is aimed to this application.
For now, idf doesn't have support for this feature officially.
But we will eventually support it some day.

可以参考以下这个：
https://www.esp32.com/viewtopic.php?f=1 ... 381#p27381
https://github.com/espressif/esp-idf/pu ... -340727923
希望能对你有帮助。