I’m using the W5200 chip successfully in more than 50 boards, but have a non critical issue I would like to solve.
After powering the chip, initializing (using UDP) and opening a socket, reception is possible inmediately; however transmission is not possible for a while. The chip responds to a ping, but when trying to transmit, it returns 0 instead of the number of bytes that I’m trying to send. After 10, 20 or more retries during several seconds, the chip finally starts transmitting. After that, it works fine until the next time it is powerd on. What could be the reason for this behavior?