Performed by: ehud vardi shahaf yaron ezra Instructor: boaz mizrchi המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory הטכניון - מכון טכנולוגי לישראל הפקולטה להנדסת חשמל Technion - Israel institute of technology department of Electrical Engineering דו ” ח סיכום פרויקט ) סופי ( Subject: IRcommunication סמסטר חורף

Abstract המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory 2 IrDA communication is a very “cheap” technology to implement wireless, short range,P2P applications. The HW include a simple circuit with IR Tx\Rx and the power consuming is very low. thus, in this project we implement a serial wireless communication that base on IrDA protocol.

System description המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory 3 In this project we implement a IrDA communication channel between custom board that include PIC24FJ256GB106 microprocessor and PC. In order to create IrDA channel in the PC we built a IrDA-USB dongle that function as a linker between the IR transmitter- receiver and the USB port. The dongle is also based on the same PIC24F microprocessor. On the PC we wrote an API in C++, that give the ability to receive and transmit data.

Specification המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory Hardware Software 4 Board with PIC24fj256gb106,IrDA Tx/Rx and USB port Board with PIC24fj256gb106,IrDA Tx/Rx PC Embedded : 1. firmware that implement clinet 2. firmware that implement server PC API wrote in C++

System Block Diagram המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory 5

Protocol Properties המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory 6 –UART 8-N-1 IrDA –Stop&Wait, P2P –CRC-CCITT – hardware implementation –Fixed Packet Size :60 bytes –Effective BaudRate : ~8500 [bit/sec] Exclude : CRC,ack/nck 4 bytes -CRC55 bytes - Data1 byte-header Packet structure