WIZ550io firmware.

Please. How to load firmware into WIZ850io module?
Thank you.

Wiz850io and Wiz550io not include the MCU.
In my opinion, it would be better to think of it as a sensor module that provides an SPI interface.

Hi, the question was based on information:

Product Description

WIZ850io is an compact size network module that includes a W5500 (TCP/IP hardwired chip with embedded PHY) a transformer and RJ45. The module is designed to be a fully pin-compatible replacement of the WIZ820io which has been widely used in the market over the last few years. The WIZ850io has a very small form factor and is just a little bigger than a usual RJ45 connector. The connection from the WIZ850io to your microcontroller is done by SPI mode 0 & 3. Already existing projects with the WIZ820io can be transformed to be used with the WIZ850io by modifing the firmware.


That is, unless it is intended by modifying the project firmware.