We are using iMXRT1176 interfaced to PHY chip KSZ8081RNB. Ethernet page schematics attached.
The below is the pin details connected to imxrt. ENET_CRS_DV is connected to the pin GPIO_DISP_B2_08 and ENET_INT is connected to GPIO_AD_12.
We build around 30 boards. We are facing reception not working in three boards. One board works after replacing the RJ45 connector with new one and one board works after replacing the microcontroller. We had checked all the waveforms between micro & PHY and PHY & connector. It looks same as the working board. While checking the loop back action, we found that digital loopback is failed, and analog loopback is working fine. Could you please look into this.
