1. Performed by:Boaz Blankrot Leon Karabchevsky Instructor: Stanislav Shapiro Duration: 1 Semester Mid Semester Presentation Spring 2012 Mid Semester Presentation Spring 2012

2. Project’s Concepts Block Diagram Overall Progress Future Tasks Open Issues Estimated Timeline

3. Sample and post process and save to EEPROM 8 channels of data (0-40Hz) Storing the parameters for 10 sessions (each session takes 10-15 minutes) Switching between operational modes (power saving and normal) Low-power operation while in DAQ and offline mode LED\buzzer indication of operation state Easy to user pc GUI

4. Pre – AMP X8 PIC24F EEPROM Data \8 PC USB RTC Ctrl Internal Memory LEDUser Control LED Ctrl Comm. Ctrl Memory Ctrl Probe & magnet X8 A/D Power controller DC/DC Analogue sensor DAQ & PPU Control Buttons WMSU WMSU - Work mode selection unit Green - Done Yellow - In progress

5. USB Interrupt based USB interface Upgraded functional usage EEPROM Serial write\read ability Upgraded functionality and timing RTC Ability to set and get the RTC from the PIC LED\Buzzer Basic user notification

6. A\D 8 channel DAQ ability Split buffer mode Scan mode Interrupt based Post Processing & Compression Combine data from 8 sensors to 2 sample points While DAQ or after DAQ is done? WMSU Interrupt based Toggling PIC units between Sleep\Online mode

7. User work flow Working online\offline Pausing during session How many patients will use the same device DAQ Timing Problematic timing of DAQ when combined with EEPROM write Will be worst if combined with post processing Even worst on offline mode (lower frequencies)