1. Design Constraint Analysis Team KANG Group 1

2. Sentry Gun Design and build a turret and armature structure with the ability to detect, track and fire upon targets using a camera, motion sensors and a mounted weapon.

3. Constraints Overview Camera Requirements Camera Requirements DSP Requirements DSP Requirements Microcontroller Requirements Microcontroller Requirements

4. Camera Requirements Digital Output Video Camera Digital Output Video Camera QVGA (320 X 240 Resolution) QVGA (320 X 240 Resolution) Frame Rate: ~15 frames/second Frame Rate: ~15 frames/second

5. Part Choices Camera: Camera: C3088 camera module with OV6620 sensor chipC3088 camera module with OV6620 sensor chip 356x292 at 50Hz frame rate 356x292 at 50Hz frame rate Analog and digital parallel output (YCrCb 4:2:2) Analog and digital parallel output (YCrCb 4:2:2) I2C interface for settings I2C interface for settings Well-documented Well-documented

6. DSP Requirements External memory expansion capabilities (for image storage) Processing speed min. at 15MHz to run video algorithm SPI channel (microcontroller communication) GPIO pins to interface with camera (12-15)

7. Part Choices DSP: DSP: Freescale DSPB56374AEFreescale DSPB56374AE 150 MIPS 150 MIPS 80-pin TQFP 80-pin TQFP I2C, SPI I2C, SPI “Up to 47” GPIO pins (from data sheet) “Up to 47” GPIO pins (from data sheet)

8. μC Requirements SCI ports for user interface and IR sensors (min. 2) SCI ports for user interface and IR sensors (min. 2) SPI port to interface with DSP SPI port to interface with DSP GPIO pins to interface with motion sensors, motors and fire control GPIO pins to interface with motion sensors, motors and fire control PWM capable of 16-bit output on at least two ports PWM capable of 16-bit output on at least two ports

9. Part Choices μC: μC: Freescale MC9S12A512Freescale MC9S12A512 2 SCI, 3 SPI ports 2 SCI, 3 SPI ports 29 GPIO 29 GPIO 16-bit PWM capability 16-bit PWM capability 112-LQFP 112-LQFP