NUCLEO_F429ZI. Is it possible to use CAN2 and Etnernet simultaneously?

[alsor62]

hi,
for devboard NUCLEO_F429ZI are specified in mpconfigboard.h at the same time
#define MICROPY_HW_CAN2_TX (pin_B13)
And
#define MICROPY_HW_ETH_RMII_TXD1 (pin_B13)
Does this mean I can't use CAN2 and Ethernet at the same time?

[nspsck]

Hi,

As for this implementation, no, you can not use them at the same time.

But there is a good news. According to STM32CubeMX, CAN2 and ETH (RMII mode) can be used at the same time.

You just have to set the pins accordingly, i.e. use pin_G14 for ETH_RMII_TXD1.
Or you can change the CAN2_TX to pin_B6.

[alsor62]

Thanks for the answer.
But to do this, you need to specify the corresponding pins in the mpconfigboard.h file and build micropython?

[nspsck]

Hi, I don't think that you need to specify the pins. The pin name should be already defined in pin.csv.

[alsor62]

OK. Thanks for the answer. But it is necessary to rebuild micropython.

[nspsck]

Yes, it is necessary.

[alsor62]

Thanks, I understand.