Hi,

I'm developping a (simple) customised system that measures temperature and pressure using an stm32 µC. I wish to add an ethernet module to transmit the results by UDP. Using ethernet communication in a system is quite new for me. I know that we need an ethernet Phy module, the magnet (& the RJ45 connection) for the hardware ...
Is that all what is needed for the hardware ?
What about the software, how the tranmission can be set ? how all the layers of the UDP dataframe can be managed ?

Thank you

 

Take a look at WIZNET WIZ850io. TCP/IP stack in hardware, PHY and magnetics with SPI interface. Pretty simple to use. Good starting point. 1 piece price about $20 at Mouser.
Detailed data at
https://docs.wiznet.io/img/products/w5500/W5500_ds_v110e.pdf

We do have some IT experts here that may weigh in with other/better options. I just added one to a 20 year old system to interface to a newer controller. Worked fine for me.

 

ok, thanks. I was going to use the KSZ8081RNA microchip phy. The W5500 seems easier to use.