hi, i need to make a circuit, where 7-segments bin code is converted to bcd code, using CMOS.And circuit shoud have EI (enable input). I really need help.please
hi, i need to make a circuit, where 7-segments bin code is converted to bcd code, using CMOS.And circuit shoud have EI (enable input). I really need help.please
hi,
The 7 segments of a display are 'named' a,b,c,d,e,f,g.
The 'a' seg is the top segment, then counting clockwise b,c,d,e,f.... the g seg is the centre segment.
So write out 10 columns of 7 segments showing when the seg is lit as a '1' and not lit as a '0'.
So start your columns at column "0" BCD
this one will be the BCD number zero "0", the next column will be "1" and so on.
Code:
"0" "1" "2" "3" ... so on to "9"
a 1 0
b 1 1
c 1 1
d 1 0
e 1 0
f 1 0
g 0 0
hi,
You will find using simple logic elements that configuring a 7 bit binary to 3 digit BCD is quite difficult.
I dont think you writing all the 0 to 127 binary/bcd's will be helpful.
i saw this algorithm yesterday...but i didn't understant how does it works.. maybe, because of my bad english..can you a little explain and i will try to make similiar table..?
hi,
What you have to do is to make 7 of the "C" modules, all the "C" modules are exactly the same. See image #1.
Look at the module truth table, this is the logic block you have to design, its not easy.
When you have the 7 "C" modules connect them as image #2.