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THE ETHERNET DEVELOPMENT BOARD

Part 1: Putting it all Together
by Fred Eady

Start ý Overview ý Elmerýs Silicon Glue ý Time to Kill ý The CS8900A-CQ ý Software and Firmware ý ICSP and LVP ý Assemble the Ethernet Electronics ý No Floating Allowed ý Installing the Bypass Capacitors ý Pin Point ý Finishing Installation ý Assemble the PIC16F877 Electronics ý The Rest of the Project ý Winding Down ý Finishing Up ý Sources and PDF

THE REST OF THE PROJECT

After all of the caps are soldered, mount and solder Q1, R8, R9, and R10. Use Photo 10 as a guide. When youýre finished with the MCLR transistor and its resistors, install the 74LS125 and its bypass capacitor C15. You can install XTAL2, the 20-MHz resonator, on either side of the printed circuit board. The center pin of XTAL2 is ground, and the outsides can go to either side of the center ground pin.

Photo 10ýBe sure to mount the 2N2222 and all of the surrounding resistors before soldering the 44-pin PLCC socket. Some of the transistor is partially hidden under the PLCC socket.

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