2024-10-20 11:08 AM
I maid a custom board with ST32H745 mcu. The board is working fine but the ethernet part is not working. The Ethernet part is exactly the same as the Nucleo H745ZI reference design. The code and Ethernet part working fine on Nucleo board. I checked all Ethernet part components and found all are same as in the Nucleo schematic. I am using ST link V2 for custom board programming (SWDIO, SCLK & GND pins). I probed TXD0,TXD1,TX_EN,CRS_DV,MDC, MDIO pins on both Nucleo and custom board and found both are the same. I also checked PHY clock and Ref Clocks and they were showing 25 Mhz and 50Mhz accordingly. Both LEDs (green and yellow) on the Ethernet jack also working.I am using cube IDE and LWIP with FreeRTOS .What would be the problem behind this ?? I am totally stuck on this. Phy Section schematic also attached here.