SMI与IIC问题

fary_young
Posts: 8
Joined: Tue Dec 15, 2020 5:57 am

SMI与IIC问题

Postby fary_young » Wed Dec 16, 2020 1:26 am

ESP32-Ethernet-kit开发板中如果使esp32模组的IIC的SCL、SDA与phy芯片的MDC、MDIO共用管脚,同时使用IIC和以太网功能他们之间会存在冲突吗?

ESP_morris
Posts: 164
Joined: Wed Sep 05, 2018 6:23 am

Re: SMI与IIC问题

Postby ESP_morris » Wed Dec 16, 2020 4:40 am

会冲突

fary_young
Posts: 8
Joined: Tue Dec 15, 2020 5:57 am

Re: SMI与IIC问题

Postby fary_young » Wed Dec 16, 2020 5:38 am

谢谢你的回答,请问冲突的原因是什么呢?

ESP_morris
Posts: 164
Joined: Wed Sep 05, 2018 6:23 am

Re: SMI与IIC问题

Postby ESP_morris » Mon Dec 28, 2020 4:41 am

如果你能确保应用层会时分复用这些个GPIO引脚,那或许可以

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