As to my project (STM32H750VB + RMII), should corrent it like this:"The ETH can work only when RAM is pointing at 0x24000000" realy means D1 , the DTCM/D2/D3 domain are all not work..When active DCache, the MPU must be enable and use it to disable th...

@VaZso​ Thank you! My problem is soloved, and i put everything of "+RW,+ZI" to D1, but this still didn't work, Then i turn off the cache, ETH is worked, So i should look into this part of cache how its works... hope be helpfull for other guys.

@VaZso​ Hi, I use STM32H750VB and my ETH part trouble is similar to you ,and could you please tell me what's the the STM32H753ZITx_FLASH.ld means as to --"So, STM32H753ZITx_FLASH.ld had to be modified to use RAM_D1 instead of DTCM memory."? Is that D...