Embedded Systems Prototyping Tool Kit using Lego Dacta Hwayoung Chae

Contents  Basic Diagram  Introduction  Sensor and Actuator  Interface Card and Control Board  FPGA-based Control Chip Structure  Dual-Kernel Architecture of RT-LINUX  Report Progress

Basic Diagram

Introduction of the ESPS LEGO Dacta teaching tool developed by MIT and LEGO Fischertechnik teaching tool C/C++, JAVA Language on the Linux/RT platform Teaching package for understanding Embedded System ESPS (Embedded System Prototyping Suite )

Sensor and Actuator Temperature Sensor : Resistor characteristic varies according to the temperature Rotation Sensor : Output voltage level varies according to the rotation angle Light Sensor : Sense the object color and luminosity through frontal light sensor Touch Sensor : If push the button, then the output voltage is low Actuators : Buzzer, Lamp, Motor, Geared Motor

Interface Card  Sensor and actuator can connect to the control board through the interface card  Supply voltage source to sensors and actuators  transfer the sensor value to the control board

Control Board  Transfer the command from the device driver to the interface card  Transfer sensor data from interface card to the host part via ISA bus

FPGA-based Control Chip Structure

ESPS(PC-104) version

Dual-Kernel Architecture of RT-LINUX

Report Progress  1998  Started to use the LEGO Dacta for designing system prototype  Proposed making the teaching tool with LEGO sensor and actuactor  1999  ISA version test board (Altera)  Test version device driver and API (VxWorks, Linux)  2000  ISA version PCB (Altera)  Apply the driver and API(Linux, RT-Linux as the teaching tool  2002  Begin to make PCI version board (Xilinx Spartan II, PLX9052)   PCI version board (Xilinx Spartan II PQ208-5 만 게이트, PLX9054)  Related device driver and API