usb adapter for experiment board

USB Adapter for Experiment Board

Created By :Itai HellerOfir Asulin

Supervised By:Mony Orbach

Project Goals

•Enhancing & Expanding an existing prototype circuit built on a wire-wrap board.•Manufacturing a printed circuit in order to broaden and improve lab experiments, adding future implementations.•The prototype is a Communication adapter designed to connect between a PC USB Port and a Lab Experiment boards.

Existing Environment

•The current device is based upon an old 8031 micro-controller with a RS-232 communication protocol.

•It is necessary to advance to a more modern communication protocol in order to keep up with the PC advance, furthermore a higher data-flow rate is needed for future implementations.

•The new interface must be consistent with existing environment in the lab (PC , 6 types of lab experiment devices and windows XP with VB 6.0).

Characterization of system Inputs

i) Type of the lab educational device: received on installation (8bit).

ii) Number of lab educational device: received from device (8 bit).

iii) Random address:received from the PC (3 bit).

Future implementations:

iv) input Port: (8 bit )

Characterization of system Outputs

i) PC’s approval for the connection with the device : On screen.

ii) Approval for the receiving of the random address:Buzzer (1 bit).

Future implementations:

iii) output Port (8 bit)

Block Diagram

PC

BoardNumber

USB Adaptor&

FPGA

ExperimentBoard

(Midgam)Draw

Control

Confirmation(Buzzer)

Power Stabilizer

OutsideVoltage

USB

3 bits

8 bits8 bits

I/OPORT

8 bits8 bits

1 bit

1 bit

3 bits

Block Diagram-In depth

PC

BoardNumber

DLPUSB

AdaptorExperiment

Board(Midgam)

DrawControl

Confirmation(Buzzer)

Power Stabilizer

OutsideVoltage

USB

3 bits

8 bits

I/OPORT

8 bits8 bits

1 bit

1 bit

3 bits

CyclonFPGA

EPSC

Reset

Clock

2XSwitch DIP-8 RS323

LM7805

Schedule

Theoretical orientation.6/4/2005-DONE System planning:12/5/2005-DONE

– Choosing and placing of components– Learning Orcad

Circuit drawing on Orcad and handing it to Ella.-DONE Creating the circuit (with Ella) and configuration of the FPGA

(in VHDL).12/6/2005 Simulations & Debugging.12/7/2005 Driver Writing.28/7/2005 Implementation of the Adaptor with the experiment

system.28/8/2005