STM32F407ZET and stm32f407IGT chip ethernet difference

[YPark.13]

I am using the STM32F407 chip, but I have a question related to Ethernet.

 There is a separate parameter setting when Ethernet is set in the STM32F407ZET chip, but there is no parameter setting in the stm32f407IGT chip. Please explain why and what is the big difference between the two Ethernet communications?

[waclawek.jan]

There should be no difference in setting ETH with these two chips.

> There is a separate parameter setting

What do you mean exactly by this?

JW

[YPark.13]

 As shown in the picture, the IOC setting part has two different chip settings STM32F407ZET (5 pieces)

[Pavel A.]

Do you have two boards with different PHY chips or different clock setup of PHY and MAC?

External PHY's are not part of STM32F4.

Assignment of MAC address also can differ, STM32 do not have pre-assigned MAC addresses.  

[waclawek.jan]

I don't use CubeMX but to me that looks like in one case you are configuring a ready-made board with an on-board PHY, and in the second case a bare chip.

JW

[YPark.13]

Anyway, is Ethernet communication possible for both?

[Pavel A.]

Both chips have the ethernet device (ETH).

For Ethernet communication you must have a PHY (and clock source for it), or some kludge for PHY-less connection.