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How to Use DHCP with WIZnet W5500 on STC32G12K128?

This STC32G12K128 project uses the WIZnet W5500 Ethernet controller to obtain an IP address automatically through DHCP.

gavinchang

Published May 12, 2026

Original author: 单片有机机Original source (new tab)

How to Use DHCP with WIZnet W5500 on STC32G12K128?

Project description

How to Use DHCP with WIZnet W5500 on STC32G12K128? Summary This STC32G12K128 project uses the WIZnet W5500 Ethernet controller to obtain an IP address automatically through DHCP. The W5500 provides the wired Ethernet interface and hardwired TCP/IP engine, while the STC32G12K128 controls the chip over SPI and uses DHCP so commercial devices can be connected to a router or switch without manual IP provisioning. What the Project Does The project demonstrates DHCP-based network provisioning on an STC32G12K128 microcontroller with a WIZnet W5500 Ethernet controller. The original article states…

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