This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/744768/tm4c1294kcpdt-ethernet-phy-clocking
你好！
据我所知、以太网 PHY 需要一个25MHz 外部时钟源才能工作、并且无法通过系统时钟计时、但在数据表中的系统时钟原理图中、我还注意到还有一个来自 GPIO (可能是 PM4)的时钟源。
问题是：它是有效的来源吗？ PHY 能否通过将25MHz 信号连接到 PM4来工作？ 可能通过内部计时器生成...
此致
