The PIC12F519 is not essential for W5500 applications.
If you can have your own MAC address and can save it in the EEPROM or Flash Memory, then you don’t need the PIC12F519.
You should purchase the MAC addresses to be used in your system at the IEEE (www.ieee.org).
Regarding to the MAC address to buy for our Ethernet design.
I looked at the IEEE website, but for testing purposes I have a question:
Is it possible to buy from Wiznet the W5500 with the PIC12F519 including a MAC address?
Or I was thinking of an alternative, using this Dallas Semiconductor 48-bit Node Address Chip which provides a valid MAC Address. But the question would be How to communicates with the W5500.
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Also, what are the step of the communication between the PIC and the W5500?
The PIC is giving the data to the W5500 at the very startup (power switched on) of the board or the W5500 is asking at a particular time?
Hi, all.
W5500’s MAC address can be configured with write MAC address to SHAR by user MCU instead of PIC12F519.
If you have already unique MAC address value, Just write the value into SHAR of W5500 using your MCU. So, don’t need
PIC12F519.