Hello, we’re designing a board with a SPI bus between SAMD21 and W5500 chip.
But for some reason the W5500 chip is not recognized by the SAMD21.
Here are some technical informations of the project:
- we are using the arduino framework
- the firmware code was proven to work with a SAMD21 evaluation board and wiz850io module
- the w5500 ethernet port is connected to a KSZ8995MA switch chip
- we use a custom UF2 bootloader on the SAMD21 (also proven to work with the eval board and wiz850io)
Here is picture of the schematics:
If anyone spots something weird, or if anyone would need more information please let me know.
Thanks for you help!