1. A versatile networked embedded platform for KNX/EIB TU Wien Automation Systems Group Fritz Praus 0025854 fritz@praus.at

2. TU Wien, Automation Systems Group, Fritz Praus2 Outline Project goals KNX/EIB Requirements Hardware –components –design Software –low level firmware –various higher layers

3. TU Wien, Automation Systems Group, Fritz Praus3 Project Goals a versatile embedded platform for software development in the area of home and building automation integration of various communication interfaces with focus on KNX/EIB working prototype

4. TU Wien, Automation Systems Group, Fritz Praus4 KNX/EIB open standard –EN 50090 –specification maintained by Konnex Association well-established in D-A-CH decentralized design media: –Twisted pair (TP), Powerline, radio transmission devices: –interaction (sensors, actuators), routers, gateways, PC-based

5. TU Wien, Automation Systems Group, Fritz Praus5 Requirements universally applicable low cost and compact robust: electrically safe and easy to handle flexible and extensible sufficient resources: processing power, memory, permanent storage, … ease of use but powerful functions and low level access design openly available

6. TU Wien, Automation Systems Group, Fritz Praus6 Hardware - Components Fujitsu MB90330F 16-bit Microcontroller – 24 MHz, 24Kbyte RAM, 384Kbyte flash memory – 4 UARTS and USB – external bus interface Crystal CS8900ACQ3 Ethernet Controller 2 TP-UARTs SD/MMC card connection

7. TU Wien, Automation Systems Group, Fritz Praus7 Hardware – Design Schematic PCB Layout –Placement –Conductors –Power

8. TU Wien, Automation Systems Group, Fritz Praus8 Software – Low-Level Drivers UART firmware TP-UART protocol –asynchronous serial communication –normal vs. analog mode (transceiver only) CS8900A protocol –ISA bus SD card protocol –SPI standard USB firmware provided by Thesycon –slave / mini host

9. TU Wien, Automation Systems Group, Fritz Praus9 Software – Higher layers IP network layer –IP (no fragmentation) –ICMP (echo) –UDP –TCP (single) –ARP –DHCP –SLIP EIBnet/IP –fully implemented –Gateway and Router functionality Webserver –device status –KNX/EIB send interface –Webpages located at SD/MMC card

10. TU Wien, Automation Systems Group, Fritz Praus10 Thanks for your attention