Design Constraint Design Constraint AnalysisAnalysis

Team KANG Team KANG

Group 1 Group 1

Sentry GunSentry 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.

Constraints OverviewConstraints Overview

Camera RequirementsCamera Requirements

DSP RequirementsDSP Requirements

Microcontroller RequirementsMicrocontroller Requirements

Camera RequirementsCamera Requirements

Digital Output Video CameraDigital Output Video Camera QVGA (320 X 240 Resolution)QVGA (320 X 240 Resolution) Frame Rate: ~15 frames/secondFrame Rate: ~15 frames/second

Part ChoicesPart Choices

Camera:Camera:• C3088 camera module with OV6620 C3088 camera module with OV6620

sensor chip sensor chip 356x292 at 50Hz frame rate356x292 at 50Hz frame rate Analog and digital parallel output (YCrCb Analog and digital parallel output (YCrCb

4:2:2)4:2:2) I2C interface for settingsI2C interface for settings Well-documentedWell-documented

DSP RequirementsDSP 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)

Part ChoicesPart Choices

DSP:DSP:• Freescale DSPB56374AE Freescale DSPB56374AE

150 MIPS150 MIPS 80-pin TQFP80-pin TQFP I2C, SPII2C, SPI ““Up to 47” GPIO pins (from data sheet)Up to 47” GPIO pins (from data sheet)

μμC RequirementsC Requirements

SCI ports for user interface and IR SCI ports for user interface and IR sensors (min. 2)sensors (min. 2)

SPI port to interface with DSPSPI port to interface with DSP GPIO pins to interface with motion GPIO pins to interface with motion

sensors, motors and fire controlsensors, motors and fire control PWM capable of 16-bit output on at PWM capable of 16-bit output on at

least two portsleast two ports

Part ChoicesPart Choices

μμC:C:• Freescale MC9S12A512Freescale MC9S12A512

2 SCI, 3 SPI ports2 SCI, 3 SPI ports 29 GPIO29 GPIO 16-bit PWM capability16-bit PWM capability 112-LQFP112-LQFP