The evaluation board is dedicated for usages strictly related to
AT89C51 (40 pin DIP), which is an infamous microcontroller and a very
frequently used one in the academic arena as well. Generally, most of the
evaluation boards available in the market are beyond the affordability range of
an individual. Keeping this constraint in mind the board is designed such that
it will not only cope with various feasible utilities of the microcontroller
but also it will provide a deeper insight of microcontroller interfacing to the
rookies.
The salient features of this 8051 evaluation board are:
[1] It is a very low cost design.
[2] It is very lucid.
[3] It has got an on-board regulated power supply (with LED).
[4] All 4 ports of the 8051 microcontroller are easily
accessible for further measures.
[5] It has an on-board reset switch.
[6] ALE, PSEN are arranged in such a manner that both internal
and external memory access can be performed with a minor knob movement.
[7] Port 0 pins can be used as input or output with no addendum
(mere switch adjustment).
[8] The board supports serial mode access through RS232 using
MAX232 chip.
Schematic:
[Note: All it takes is just to refer the circuit
diagram given above and rebuild the circuit using any PCB fabrication tool
readily available over Internet (e.g. PCB wizard) and transfer the design to a
silk-screen. Then a PCB can be easily fabricated from that silk-screen and the
various components can be populated over it using a soldering iron. Voila...
you are ready with your fully functional evaluation board.]
*** Anyway, take the Mediafire link to 'PCB Wizard 3.50 PRO' ("no installation needed")
[the file for the evaluation board with .pcb extension is also
available along with it.]
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