2021-04-06 10:49 AM
I'm confused regarding the importance of Quad-SPI for Ethernet communication. I see that pins PH2/PH3 were configured for QSPI without it being activated for either core. I tested leaving these pins in GPIO_Analog mode and still detected UDP broadcasts from the example code. Are these Quad-SPI pin configurations optional?
How to create project for STM32H7 with Ethernet and LwIP stack working
Solved! Go to Solution.
2021-04-06 12:16 PM
@Adam BERLINGER will tell it for sure, but I'm reading it as "as in 'H750 there's deliberately quite little FLASH so most probably you'll need external FLASH, probably QSPI-connected".
In other words, no, it's not directly ETH-related.
JW
2021-04-06 12:16 PM
@Adam BERLINGER will tell it for sure, but I'm reading it as "as in 'H750 there's deliberately quite little FLASH so most probably you'll need external FLASH, probably QSPI-connected".
In other words, no, it's not directly ETH-related.
JW
2021-04-06 01:01 PM
Just flagging potential conflicts, and more optimal pin choices that don't foreclose other usage.
2021-04-06 04:05 PM
Note that these pins are for MII interface. In RMII mode there's no conflict at all.
--pa
2021-04-07 12:46 AM
Hello,
yes,
This is due to pin collision in pinout. Moving MII signals from PH2/PH3 allows to use QuadSPI later on if necessary. But it is not required for Ethernet operation.
This is also related to this specific H7 board.
Adam