Reseting w5100

Question

Good morning, I have a w5100 connected to an Arduino UNO. From time to time, the shield gets unreachable until I reboot the whole system or press the “reset” button. Is there a way to reset the shield by software, so that the button doesn’t need to be pressed?

Eugeny · Answer

Yes, using MR register setting bit 7 to 1. See 4.1 “common registers”.

mhortalr · Answer

Thank you very much for your answer but, in which document is point 4.1 “common registers”?

mhortalr · Answer

The question really is: Which command of the Arduino Ethernet Library should I use to reset the shield?

Eugeny · Answer

mhortalr: in which document is point 4.1 “common registers”? http://www.wiznet.io/wp-content/uploads/wiznethome/Chip/W5100/Document/W5100_Datasheet_v1.2.6.pdf mhortalr: Which command of the Arduino Ethernet Library should I use to reset the shield? If you know command which is used to write to chip’s register you can use it writing to register #0000 (MR).

mhortalr · Answer

Thank you very much

RicardoMariz63 · Answer

Ethernet.init(53) Use native library Arduino.