The DHCP process seems to take much longer if I pull the reset line (RSTn) first. I can access all the SPI registers just fine, but there seems to be some internal state machine that needs to boot up before it is actually able send any packets (like DHCP discover/request). And it also looks like it takes quite some time (somewhere between 5-10 seconds??). How can I know when the W5500 is ready after a RST?
I see on the Wiz550i dev kit, you have a small uC that asserts a WIZ_RDY flag. How does this check when the W5500 is ready? Is it just a timeout, or is there a register I can check somewhere?