lab0_s11_Intro_board_construction

lab0_s11_Intro_board_construction - University of Florida...

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University of Florida EEL 4744 – Spring 2011 Dr. Eric M. Schwartz Electrical & Computer Engineering Dept. Revision 2 Damian Szmulewicz, TA Page 1/4 Lab 0: Intro to UF F28335 Development Board, 11-Jan-11 Soldering/Wire-wrapping, and your TA Needle- nose plier Wire wrap tool tip Proper wire wrapping OBJECTIVES In this lab you will meet your TA and give them the required information listed below. Next you will see a short demonstration on soldering & wire-wrapping during this lab to aid you in building your UF F28335 board and adding future hardware to the board. Upon seeing the TA demonstrate these techniques, you will be encouraged (forced) to try to solder boards on your own and also to practice wire-wrapping some connections. You will then solder some new headers to access ports and address lines on your UF F28335 Development Board. Meet your TA. Get to know him. Understand the lab policies. Fill out and submit the Lab Rules and Policies handout. REQUIRED MATERIALS Printout the following document: o Lab Rules and Policies o Parts List Read/save the following document: o Pre-laboratory Report Guidelines o CCS Installation Instructions o Electronic Assembly handout EEL4744 DSP part list Multimeter (from 3701) Chip extractor (from 3701) Wire wrap tool ( your tool) Soldering iron (available for use in lab ) Wire cutters and needle nose pliers (shown above, some available for use in lab , but if you own one, bring you own ) DISCUSSION The Electronic Assembly handout discusses how to solder, a technique that makes a good electrical (and mechanical) connection between two locations. Wire wrapping is another technique for making a good electrical and mechanical connection between two locations. The advantage over soldering is that the process can be easily reversed, and with our wire wrap tool, require no additional equipment. An electrical connection between two pins is established by wrapping bare wire around the first pin, running insulation covered wire to a second pin, and wrapping the second pin with the bare wire. There should be 5-7 turns of bare conductor on a wire-wrap pin and about 1 to 1.5 turn of insulated wire on the pin. To obtain 5-7 turns of bare wire, approximately 1-inch of wire should be stripped of insulation. Multiple wire wrap connections can be made from a
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This document was uploaded on 07/11/2011.

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lab0_s11_Intro_board_construction - University of Florida...

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