Search found 3 matches

by nick.pt
Thu Nov 25, 2021 9:27 am
Forum: ESP-IDF 中文讨论版
Topic: ESP32 以太网启动失败问题
Replies: 2
Views: 4391

Re: ESP32 以太网启动失败问题

ESP_morris wrote:
Thu Nov 25, 2021 7:45 am
你是用的 GPIO0 输出RMII时钟,看你的情况,像是MAC和PHY侧拿到的RMII时钟相位对不上,导致数据平面通信不稳定,出现一会link up 一会就 link down的现象. GPIO0直接输出时钟的话建议再接一个反相器.

我们推荐RMII时钟由外部提供,从GPIO0输入. 参看官方的开发板.
電路是參考官方的開發板的, 目前GPIO0輸出是有接個反向器的. No.2板 IP拿不到估計是相位對不上造成.
請問No.1這種現象有什麼辦法可以解決了? PHY總是初始化失敗, power up timeout.
by nick.pt
Thu Nov 25, 2021 5:39 am
Forum: ESP-IDF
Topic: ESP32 ethernet example is not working
Replies: 0
Views: 2335

ESP32 ethernet example is not working

Hi anyone, I use same 3 pcb boards to test the ethernet sample code, But the results of the 3 pcb boards are different. The following is my development environment and settings. Hardware: ESP32-WROVER-B + IP101 IDF Version:v4.1 OS:windown + ESP Command Prompt Configuration: Snipaste_2021-11-25_09-24...
by nick.pt
Thu Nov 25, 2021 1:42 am
Forum: ESP-IDF 中文讨论版
Topic: ESP32 以太网启动失败问题
Replies: 2
Views: 4391

ESP32 以太网启动失败问题

硬件:ESP32-WROVER-B + IP101 IDF版本:v4.1 系统:windown + ESP Command Prompt 配置如下: Snipaste_2021-11-25_09-24-14.png Snipaste_2021-11-25_09-23-42.png 打了3塊板使用 example/ethernet/basic 例程進行測試 LOG如下: No.1: [0;32mI (12) [boot] ESP-IDF v4.1.1-1-g599be5b9bc-dirty 2nd stage bootloader[0m [0;32mI (12) [boot] compile t...