Hello there
I'd like to configure the PHY to output whenever a PTP RX Timestamp is ready. I already enabled interrupts and the PTP interrupt in the MICR register (INTEN & PTP_INT_SEL) and enabled interrupts on RX timestamps in the PTP_STS register (RXTS_IE) and a couple of other settings like UDP- and L2-based PTP frame timestamping
I tested the interrupt by first enabling "INT_OE" in the MICR register and I was able to successfully see the LOW signal on the PWRDWN pin when the interrupt triggered, now I want to output a signal through the PHY's GPIO2 pin instead of the PWRDWN pin, however, setting PTP_INTCTL to the value 2 does not output any signal when the interrupt hits.
I verified the correct connection between GPIO2 and my MCU by enabling RX-SFD GPIO output through the PTP_SFDCFG register and that did work, so it's not an electrical connection problem. But obviously I can't use this functionality as that would trigger the output on any kind of ethernet frame.
Can you describe what settings are needed in order to output the PTP RX interrupts on GPIO2?
Thank you in advance.
