after a a course in computer design and logic (textbook by Mano).
i would like to test my knowlage and understandig of the matrieal.
i thout about using a PIC or PLC to do some simple func and connect it thru usb (Since it is extreamly popular protocol).
for the example Simple counter (from 0 to 8)
the actual PIC configuration isn't hard and it can be even created using simple circute (lots of NAND , NOR ,AND, NOT ).
the comunication between the card will be like the next scrinario:
Connection on Counter (chip or assembly).
the get msg will beCode:------------- |clock | |clear | |load | |d0 o0 | |i1 o1 | |i2 o2 | |i3 o3 | --------------
the post msg will beClock,Clear,Load,d1,d2,d4
only if clock = 1 the counter will worko0,o1,o2,o3
how can i conntact this device to a usb port and make an os to talk to it?Code:each value,value,... means (binary) value,(binary) value