Today I test the possibility to exchange PA07 and PB05 as described
here, be removing SB121 and closing SB122 solder bridges on the back of
the nucleo board.
https://os.mbed.com/teams/ST/wiki/Nucleo-144pins-ethernet-spi-conflict
This an HW patch, but quite simple to be done.
Roberto
On 8/23/22 04:27, Nathan Hartman wrote:
On Mon, Aug 22, 2022 at 9:14 AM raiden00pl <raiden0...@gmail.com> wrote:
Do you use the default TIM3 outputs configuration from
nucleo-144/include/board.h ? It uses PA7 as the TIM3 channel 2 output which
is also used for RMII_CRS_DV.
From the nucleo 144 user manual:
2. PA7 is used as D11 and connected to CN7 pin14 by default, if JP6 is
ON,
it is also connected to both
Ethernet PHY as RMII_DV and CN9 pin15. In this case only one function of
Ethernet or D11 could be used.
I wonder if a compile-time check for this conflict could be added somewhere
to prevent this kind of impossible pinout assignment from being done again
in the future?
Cheers
Nathan
