CAN-Bus Logger Characterization presentation Apr. 19, 2009 Elad Barzilay Idan Cohen-Gindi Supervisor: Boaz Mizrahi

Project Goal A Real-time multi-purpose integration system between a vehicle’s CAN-Bus, a GPS device and analog sensors, for data storage and analysis.

Project Overview System capabilities & requirements – Perform read/write operations from/to the CAN-Bus. – Variable operation modes. – Integration between variable sub-systems. – Real-time data transfer to PC. Design principles. – Rich and Integrated Platform. – Low-cost system. – Existing Peripheral Devices. – Modular and generic design. – Portable.

Specifications  Time-Stamping.  Physical buffering between the system and all the peripheral devices, mostly the Car.  GPS configuration.  Power supply: Rechargeable battery.  Basic On-board filtering

CAN Protocol - Overview  CAN protocol, is a serial communication protocol widely used in the vehicle industry, due to it’s high reliability.  The CAN-Bus consists of several nodes connected to a single serial Bus.  Flexible : adding new components is simple.  Collision avoidance : only one node transmits, all other listen.  Message ID, not component ID.  Smart Error management.

System demonestration GPS PC CAN-Bus Logger CAN

High-level overview PIC 18F87J50 FPGA Spartan 3 CONTROL BOARD Stand-alone User interface LCDKey Pad 120 pin connector 120 pin connector Usb port Usb port PC GPS EUART CAR CARCAN-Bus UI connector PIC 18F6680 (can support) EUSART port USB Can connector Can connector CAN MODOULE CAN A/D Analog Device EUART/SPI/I2C Flash Memory

buttons Node 0: PIC 18F6680 ( can support ) CAN transceiver CAN-Bus connector LEDs LCD Node 1: PIC 18F8680 EEPROM CAN-Bus CAR CARCAN-Bus I/O bus to Prototype RS-232 connector RS-232 Node 2: PIC 18F1320 LIN connector prototype LEDs buttons CAN transceiver CAN MODOULE Control PIC GPS device Inclinometer SW UART

buttons Node 0: PIC 18F6680 ( can support ) CAN transceiver CAN-Bus connector LEDs LCD Node 1: PIC 18F8680 EEPROM CAN-Bus CAR CARCAN-Bus I/O bus to Prototype RS-232 connector RS-232 Node 2: PIC 18F1320 LIN connector prototype LEDs buttons CAN transceiver CAN MODOULE Control PIC Inclinometer GPS device I2C

buttons Node 0: PIC 18F6680 ( can support ) CAN transceiver CAN-Bus connector LEDs LCD Node 1: PIC 18F8680 EEPROM CAN-Bus CAR CARCAN-Bus I/O bus to Prototype RS-232 connector RS-232 Node 2: PIC 18F1320 LIN connector prototype LEDs buttons CAN transceiver CAN MODOULE GPS device Inclinometer SW UART Control PIC

Future implementations  Low-cost portable “scanner” wich provides endless variable data.  Performance analysis.  Cruise control and etc.  “wear and tear” tracking.  Updated mechanical status.  Driver supervision.  ….

 Preliminary Design & Characterization  Detailed Design  Method of Integration  Pin-to-Pin Diagram  Implementation  Control Module Implementation  CAN Module Implementation  Hardware Debugging  PC Implementation  Car Testing and Operation Mid semester report End of Project A Project B Timetable – Gantt Chart

Questions ? (u don’t have to…..)