UDS over Ethernet (DoIP) on Infineon AURIX TC4D7

This demo showcases a custom implementation of Diagnostics over Internet Protocol (DoIP – ISO 13400) on Infineon AURIX TC4D7 Lite Kit using the integrated Gigabit Ethernet controller and the lwIP TCP/IP stack.

The project demonstrates the complete communication path from Ethernet frame reception to UDS diagnostic services transported over DoIP.

Implemented Features

Ethernet

• GETH Ethernet driver integration
• RMII PHY communication
• lwIP network stack integration
• Static IPv4 configuration
• ARP handling
• ICMP Echo Request / Reply (Ping)

DoIP (ISO 13400)

UDP Discovery (Port 13400)

• Vehicle Identification Request (0x0001)
• Vehicle Identification Request with EID (0x0002)
• Vehicle Identification Response (0x0004)
• Vehicle Announcement Message (startup broadcast)

TCP Diagnostic Communication (Port 13400)

• Routing Activation Request (0x0005)
• Routing Activation Response (0x0006)
• Diagnostic Message (0x8001)
• Diagnostic Message Positive Acknowledge (0x8002)
• Diagnostic Message Negative Acknowledge (0x8003)

UDS (ISO 14229)

Diagnostic Session Control

• Service 0x10
• Extended Diagnostic Session (0x03)

Read Data By Identifier

• Service 0x22
• DID F190 (VIN)