communication between atmega328p to w5100

Question

Hello everyone, I designed an electric circuit, the purpose of which is to read information from several sensors in the circuit, and I want to share the information from the sensors on the network. The problem is that I connected the RJ-45 cable and there is no communication, and the LEDs do not flash. What is the reason for this? Maybe the W5100 component needs to be initialized? 11674×627 139 KB image856×546 35.3 KB

Eugeny · Answer

A number of reasons. First is you must operate RESET pin to properly reset chip on power on. Then may it happen you confused RJ-45 assembly pins? Then - does SPI communication work?

nitzanm · Answer

Hey, Can you tell me what to do about the reset pin? I didn’t connect well? And regarding the rj-45 connector, I was not confused. Is it necessary to do a certain initialization for the component? (some kind of burning)

nitzanm · Answer

I connected the reset pin of w5100 to reset pin of my MCU atmega328p…is still doesn’t working. The spi communication is working.

nitzanm · Answer

Can you show me exactly where the mistake is?