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1 SmartPhone Thesis A Seminar Ansye Linardi2275781 Ashwin Srinivasan 2277896 Endry Luis Djaja 2287066 Lydian Wati Sutadji 2287131 Yvonne Lee 2277889 Supervisor:

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Presentation on theme: "1 SmartPhone Thesis A Seminar Ansye Linardi2275781 Ashwin Srinivasan 2277896 Endry Luis Djaja 2287066 Lydian Wati Sutadji 2287131 Yvonne Lee 2277889 Supervisor:"— Presentation transcript:

1 1 SmartPhone Thesis A Seminar Ansye Linardi Ashwin Srinivasan Endry Luis Djaja Lydian Wati Sutadji Yvonne Lee Supervisor: Peter Ho

2 2 Smartphone Seminar Outline Smartphone Philosophy Smartphone Comparisons Smartphone System Design –Microcontroller ARM Core Memory –LCD –Telephony Interface –Connectivity to network and other devices Current Progress Schedule

3 3 Smartphone Philosophy “is to integrate the telephone system with the processing power of a computer system and to be able to run various applications that optimise communication within the home or office.”

4 4 Smartphone Philosophy (cont) Features included: LCD to and web browsing Advanced call management (call waiting, caller id, hands-free) Digital answering machine Least call cost routing Connectivity (USB, Infra Red, Ethernet, Wireless)

5 5 Existing “smartphone” products

6 6 MulteLink Smartphone Product Description: Electronic telephone with WEB browsing and capabilities. “Least cost call routing” whereby the phone looks up the call cost data for each of the call provider and adds the appropriate prefixes to make the cheapest possible international calls. Features: 56k Rockwell modem Hands free telephone, caller ID Backlit graphics LCD display Slide out keyboard USB port, and smart card interface.

7 7 The Smile Phone & Web-i-Phone

8 8 Comparisons of Smartphones Smartphone Type / Web browsing Normal Telephone Connectivity (modem / LAN) Color LCD / Touch Screen External Interfaces SMILE YYYY smartcard reader multimedia card audio earphones parallel interface for printer WEB-i- Phone YY( voip )Y (modem op)Y serial port smartmedia infrared smartcard reader digital answer machine MULTE LINK YYY (modem only) LCD only USB port smartcard slideout keyboard Our Proposal YYY (wireless)Y PCMCIA USB Infra red Audio Keyboard (PS2, USB, infrared)

9 9 Group’s Vision of the Smartphone Requirements We propose to base our design on the multelink smartphone to improve its design allow use of least cost routing add more “smart” features The SmartPhone will act as a communication hub for home and office

10 10 Project Scope In this scope of our project we aim to provide a: “ Proof of concept” in building the hardware prototype and prove that such a SmartPhone is possible.

11 11 The Smartphone Design What Microcontroller? LCD/Touch Screen Telephony Side Memory Keypad Handset Keyboard External Devices Power Mgmt

12 12 Microcontrollers

13 13 Microcontroller Requirements Suitable microprocessor Provides in built support for various external interfaces e.g. USB, serial ports Built-in LCD controllers, SDRAM/FLASH support etc. Embedded debugging software Power management I.e. : SoC (System On Chip)

14 14 Microprocessor Research What is ARM ? ARM (Advanced RISC Machines ) is the industry's leading provider of 16/32-bit embedded RISC microprocessors

15 15 Why ARM? ARM based processor is faster than the current 68K chips.  can run up to 200 MHz – enabling robust application such as wireless technologies to run on it

16 16 Why choose ARM’s core? Low power Low system cost Excellent code density Global multi-vendor sourcing Standardize architecture High performance Small CPU die size

17 17 ARM Core Family Products There are 5 product families of ARM processor cores:  ARM7 Thumb Family  ARM9 Thumb Family  ARM9E Family  ARM10E Family  ARM11 Family  SecurCore Family

18 18 ARM Core Family Products (cont) The 5 product families can be categorized into 3 system categories: 1. Embedded Real-time systems Cores 2. Open Platforms Cores 3. Secure Applications Cores

19 19 ARM Core Family Products (contd)

20 20 ARM Core Family Products (contd) Our group particularly interested in 2 arm cores from the selected arm-core table They are ARM920T and ARM922T

21 21 ARM Core Selection Consideration Factors Fast speed A member of Thumb technology family Have a cache (Instruction/Data) Have Memory Management Unit (MMU) Samples of application that may use this particular processor. The availability of the microcontroller products that contain these processors. Have embedded JTAG debug capability

22 22 Considered ARM based Microcontrollers: Sharp LH7A404 ARM922T Core Samsung S3C2410X ARM920T Core Motorola MC9328MX1 ARM920T Core >> “DragonBallMX1” <<

23 23 DragonBall MC9328MX1 Memory Map

24 24

25 25 Liquid Crystal Display (LCD)

26 26 LCD requirements for Smartphone 1. Viewing purposes/coloured display and web browsing Applications Display cheapest call costs and bills 2. Touch Panel Interface Alternative to a “mouse” Dial without keypad

27 27 Overview of LCD Technology Passive Matrix (STN) Active Matrix (TFT) AddressingMultiplexDirect/Active ResolutionLowHigh Power Consumption LowHigh CostLowHigh

28 28 LCD Models Considered: 1. Sharp TFT LCD touchscreen: Model: “LQ05703DC02” 320x240 QVGA cost: US$ Hitachi LCD touchscreen: Model: “SP10Q003-T” 320X240 STN Colour graphic display cost: AU$ Direct interface from “DragonBall MX1” Not Chosen: Too expensive and hard to get. Chosen: Much cheaper than Sharp and availability from many distributors. Reason: Need only an inexpensive LCD as our group intends to use it for proof of design and it interfaces with our microprocessor

29 29 Telephone and Modem System

30 30 POTS/Modem Requirements: Make phone call Modem / Fax Caller Id, Call Waiting Answering machine Billing detection / Call Duration Video Conference (Optional) Downloadable Ring Tone (Optional) To comply with Australian standards Fulfil telephone safety requirement

31 31 Pots (Plain Old Telephone Service) Basic Design Micro Phone Speaker Duplex Coil Hook Switch Keypad and tone generator Ringer Line Interface Wall Tip Ring

32 32 Modem, Fax and Caller Id Modem is a peripheral device which enables transmitting digital data through telephone line. Modulation Demodulation Telephone Line Analog SignalDigital Signal Analog Signal Digital Signal

33 33 Modem, Fax and Caller Id (cont) Fax Machine Mechanism Optical Scanning Signal Encoding Modulation Signal Transmission Demodulation Decoding Copy Making

34 34 Modem, Fax and Caller Id (cont) Caller Id is the identification of the originating subscriber line. Two types of Caller Id Caller Id Type I Caller Id Type II

35 35 Modem, Fax and Caller Id (cont) Caller Id mechanism: Caller Id Information received as analog signal Modem Decodes the analog signal into standard 8 bit ASCII character Caller Id Information is displayed on the LCD

36 36 Telephone Safety Requirement Telephone regulations require high voltage barrier between telephone line side (high voltage)and digital device side(low voltage) Three kinds of implementation Transformer Optical Isolation DAA ( Direct Access Arrangement )technology

37 37 DAA Technology Philosophy Use of a high voltage capacitor to isolate low voltage section from the high voltage section Basic Design of DAA technology System Interface Microprocessor Isolation Barrier Line Interface DAA Phone Line High VoltageLow Voltage

38 38 DAA Technology (cont) Why using DAA ? –Isolation barrier used is lighter, smaller, cheaper and has better densities compare to transformer –Can fulfill wide variety of telephone application such as FAX, Modem, Caller Id, etc –Provides Programmable line interface to meet global line requirements

39 39 Pots/Modem Implementation Two types of Implementation –Discrete components –Modem Chipset In this project Modem chipset is used to implement Pots/Modem section due to simplicity reason

40 40 Modem Chipset Points of consideration –Availability –Features supported –Meet Australia telephone regulations and standards –Price –Compatible with microprocessor Dragon Ball (MX9328MX1)

41 41 Modem Chipset (cont) Modem Chipset Considered –SmartV.XX Modem chipset (Conexant) CX81801 Modem Chip SmartDAA Integrated DAA chip Voice Codec chip (optional) –ISOmodem Chipset (Silicon laboratories) Si24XX Modem Chipset Si3015 Integrated DAA chip

42 42 Modem Chipset (cont) FeaturesSmartV.XXISOmodem Integrated DAA XX Caller Id XX Programmable Firmware XX Fax X? DTMF detection X? Call Waiting detection X? Package 128 pin TQFP24 pin TQFP CODEC included XX Availability ?? Price ?? Meet Australian Telephone Standards XX

43 43 Connectivity and External Devices

44 44 Connectivity Options Need to allow connectivity for external I/O devices such as keyboards, printers, scanners etc Also need to allow for network/LAN connectivity Trade-off between flexibility and complexity/price

45 45 External I/O Devices USB ports – almost all types of I/O devices nowadays connect via the USB port(eg- printers, keyboards etc) Standard serial port – Unlikely to be used, but is there if necessary

46 46 External I/O Devices (cont) Infrared interface – Convenient for wireless keyboards and mice Our design will probably directly support a PS/2 keyboard interface through the use of an AVR chip

47 47 Network Connectivity Main requirements are flexibility and high bandwidth (>56kbps) Standard 10/100BaseT ethernet/LAN interface PCMCIA interface for wireless LAN

48 48 Network Connectivity (cont) Fallback option of external modems/routers/hubs that can be connected via the ethernet or USB ports Considered built-in ADSL modem but this doesn’t seem feasible

49 49 Connectivity Design Challenges Ideally would like to directly support as many network and I/O devices/options as possible External devices such as cable/ADSL modems take up physical desk space

50 50 Connectivity Design Challenges (cont) Writing/porting device drivers for external devices is also a problem However, for cost and complexity reasons, convenient features like in built ADSL are not going to be supported

51 51 Functional Diagram

52 52

53 53 Project Progress

54 54 Original Schedule: Tasks wk3wk4wk5wk6wk7wk8wk9wk10wk11wk12wk13wk14wk15+ Requirements draft Final Feasibility Studies Analysis-research Design Protel Layout of PCB Implementation and Testing Operations and Evaluation

55 55 Current Status High-level overview of progress against schedule –On-track in finding most of the hardware requirements –Behind in deciding POTS design –Hence, unable to begin protel design Unexpected delays – POTS/ADSL decision

56 56 Plan for Thesis B: What we expect to accomplish in Thesis B: A working hardware prototype Proof of Design using simple software routines A scope for further research after our work, a legacy to continue building OS and further enhancements etc.

57 57 Question Time: Any Questions?


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