team 7 constraint analysis
DESCRIPTION
Team 7 Constraint Analysis. Eric Glover Steve Andre Shaun Greene Russell Willmot. Persistence Of Vision Machine. PSSC’s An ability to display a pattern with rotating LEDs An ability to control the direction in which the pattern is being displayed An ability to track an RF beacon - PowerPoint PPT PresentationTRANSCRIPT
Eric GloverSteve Andre
Shaun GreeneRussell Willmot
PSSC’s
1. An ability to display a pattern with rotating LEDs
2. An ability to control the direction in which the pattern is being displayed
3. An ability to track an RF beacon4. An ability to change the pattern
while the machine is in operation
5. An ability to accept user-generated text to display
Images from http://www.metricmind.com/clock/clock.htm
Examples of Similar Devices:
Two PCBs, 3 μC:
- One rotating PCB to drive LEDs
- One stationary PCB for location detection, interfacing with user
μC #1 handles the UI, RF beacon location detection, and pixel maps
μC #2 stores data from the transceiver in a buffer
μC #3 shifts the data out of the buffer to the LEDs and handles timing
Micro #1
A/D (3 channels), at least 10 bit SPI (1 channel) 250kbps At least 21 I/O pins 36 KB of SRAM 36 KB of Flash to store images 3.3 V preferred
Micro #2
SPI (1 channel) 250kbps At least 16 I/O pins 6 KB of SRAM for image storage 3.3 V preferred
Micro #3
SPI (1 channel) 8 Mbps 14 I/O External Interrupt Timer Pulse Accumulator 8 KB of Flash 6 KB of SRAM 3.3 V preferred
ARM Cortex M3 LM3S8962 Microcontroller 50 MHz Clock w/PLL 32-bit Architecture 4 A/D channels (10 bit) 24 MHz SPI 37 I/O pins available 256 KB of Flash 64 KB of SRAM 3.3 Volt supply 100 pin LQFP
Extra Features: Integrated support for graphic OLED screen Programmable with LabVIEW for ARM Integrated Micro SD card drivers and hardware Direct connection to ethernet port Free!!!
Freescale MCF52259 Coldfire Microcontroller
80 MHz Clock w/PLL 32-bit Architecture 8 A/D channels (12 bit) 33 MHz SPI 56 I/O pins available 512 KB of Flash 64 KB of SRAM 3.3 Volt supply 100 pin LQFP
Extra Features: Queued SPI module USB host and device controller Fast ethernet controller
PIC24FJ32GA002 32 MHz Clock w/PLL 16-bit Architecture 8 MHz SPI (2 channels) 21 I/O pins available 32 KB of Flash 8 KB of SRAM 3.3 Volt supply 28 pin SOIC C Compiler Optimized
Instruction Set
Extra Features: Not a whole lot
Freescale MC9S08AC128 40 MHz Clock 8-bit Architecture 10 MHz SPI 34 I/O pins available 128 KB of Flash 8 KB of SRAM 3.3 Volt supply 44 pin LQFP HC08 Instruction Set (similar to
HC12)
Extra Features: Not a whole lot