Jason CrayJoseph Mundackal Michael WarscoRyan Sherlock

 Project overview  Project-specific success criteria  Block diagram  Component selection rationale  Packaging design  Schematic and theory of operation  PCB layout  Software design/development status  Project completion timeline  Questions / discussion

 The Legacy Video Game Console  Load games via USB  Output to VGA Monitor  Digital audio output  Game controllers (Nintendo 64)  Fourteen Buttons  Analog Stick  Serial Interface  High score submission using b wireless protocol

1. An ability to display output onto a monitor connected through VGA 2. An ability to load game data through USB 3. An ability to manipulate the game using a controller 4. An ability to play sound files digitally 5. An ability to send high scores using wireless technology

1. TinCan Tools Hammer i. Positive a. Embedded Linux environment b. Required I/O features plus GPIO availability c. DIP-module (40-pin) d. Internal voltage regulator output ii. Negative a. 5V input requirement b. Price $$ c. Size (chip with board)

1. 4D Systems uVGA Picaso-MD1 i. Positive a) Displays 8 bit bitmap data b) Outputs to VGA through a specified resistor DAC c) Supports a data rate of 30 Hz d) Has a 512kB SRAM buffer ii. Negative a) Nonstandard pin layout b) Needs a DAC to communicate with VGA

 Audio DAC - Cirrus Logic - CS433x  8 or 16 bit digital audio conversion  Wireless Transmitter – Roving Networks – Wifly  Cheap

 Hard Plastic Casing  Durable  Manipulatable  Cheap  Lid Unscrewable  Ease of debugging  Dimensions  9 in x 9 in x 2 in  1/8 th in thickness

 Hammer  40 pin dip module  Samsung S3C2410A microprocessor + ARM 920T core (200 MHz)  16MB NOR flash and a 32MB SDRAM  Embedded Linux Hammer +5V 2 Controller 1 SPI Controller 2 SPI RS232Audio I 2 S VGA GPIO WiFly GPIO USB

 µVGA – PICASO MD1  Graphics Controller  512 KB - onboard SRAM  Double Buffering  Serial Interface – 1 Mbps  Outputs Digital Video  DAC – used to get analog output for VGA µVGA 3 Input - Hammer 11 DAC 2 VGA Connector 3

 WiFly – RN-111B  b WLAN serial embedded module  UART Interface  921 Kbps  Low power sleep mode (12 µA)  Wakes up on external events  send/receive data WiFly 5 Input - Hammer Antenna

 Audio – CS4334  Audio DAC  I 2 S (Inter IC Sound) interface Source : I 2 S bus specification specifications Audio 4 Input - Hammer Left Channel Right Channel

 N64 Controllers  Uses non standard protocol  Start/Stop bits pet bit of data  Bi-directional interface Data = 1Data = 0 N64 Controller Switch Circuit SIMOMISO Bi-directional interface

Switch N64 Controller Interface

USB Type A Interface RS232 Circuit

 7” x 6.8” (wxl) = 47.6” in 2  Reduction in size from previous attempt  Some analog signals too close  +5V and +3.3V power lines  80 mil trace width  40 mil trace width minimum  2 layer board layout  ~15 headers

 Separate analog signals (video, audio, and wireless)  Some components are closer due to size limitation (i.e., wireless micro to N64 controllers)  Placement of peripherals  Controllers and USB up front  Video, Audio, and Wireless in the back  Power supply on the side with RS-232  Digital-to-Analog conversion for RGB video output needs the most room

 USB requirements:  2 line bus (D+,D-)  +5V  Up to five 200mA each  N64 Controllers  Bidirectional serial bus  ~1A

 Power:  Single +5V power line  +3.3V regulator supplying ~800mA  RS-232 transceiver  +3.3V  UART interface requires two lines from Hammer module

 4-D Systems uVGA  ~80mA, max 110mA  8-bit RGB (3-bit red, 3-bit green, 2-bit blue) plus three blank RGB values (reference values) and Horizontal and Vertical Sync signals  RGB Digital-Analog Converter  +5.0V with minimal current  Uses the blank values as references to determine the gain of the analog signal from the RGB values

 Wireless  ~110mA, max 180mA  UART interface, hardware reset (factory defaults), and two bits for send and receive flags, total of 6 lines  Big concern is analog noise being so close to both Hammer module and N64 controller  Audio  +5.0V with minimal current  Analog noise not as large an issue since outputs are far in the right corner away from any other digital signals

 Drivers for peripherals  USB – Reading files  Audio – Outputting WAV files  Wifi – Sending data to a web server  Controllers – Accepting controller data  uVGA – send bitmap images to VGA controller  Game coding

 All software written in C or C++  Compiled on outside machine and transferred to Hammer as executable files.  Games read through USB

 March 9-13  Start work on drivers for peripherals  Finish and verify PCB design  March  Place power components on PCB  Continue work on drivers for peripherals  March 30-April 5  Place microcontroller on PCB  Complete drivers for peripherals

 April 6-12  Begin coding games  Add the peripherals to PCB  April  Verify all components on PCB work properly  Finish coding games  Write user manual  April  Debug system  Prepare for demonstration