السلام عليكم إخوان
أنا طالب جامعي ولا زلت في بداية المشوار في تخصص الهندسة الكهربائية .. بمعنى آخر أني أجهل الكثير في هذا التخصص وفي تصميم الدوائر الكهربائية والالكترونية .. فإذا تكرمتوا عندي مشروع صغير أطلب منكم شاكرا المساعدة فيه .. وهذا ملخص المشروع :
Design and implement a digital circuit with a control input X, such that when X=0 the circuit
will accept a 3-bit binary number and produce its equivalent Octal number using seven-segment
decoder. When X=1, the circuit will accept a 4-bit binary number and produce its equivalent
Hexadecimal number using seven-segment decoder.
That is, when X=0, and the switches SW1, SW2, SW3 are set as 000, 001, 010, 011, 100, 101,
110, 111 (all are binary inputs), then your circuit should produce 0,1,2,3,4,5,6,7 respectively in the
seven-segment display. If X=1, and switches SW1, SW2, SW3, SW4 are set as 0000, 0001, 0010,
0011, 0100, 0101, 0110, 0111, 1000, 1001, 1010, 1011, 1100, 1101, 1110, 1111 (all are binary
inputs), then your circuit should produce 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F respectively in the seven
segment display.
Before implementing the circuit, simulate your circuit using LogicWorks and include a printout
of your logic circuit and input/output waveforms in the project report. To implement the circuit,
you can use any type of IC-chip available in the Digital Design Lab.
Hint: A seven segment decoder has seven outputs (a, b, c, d, e, f, g ) which are selected to be
logic 0 or logic 1 depending upon the character you want to be displayed. Thus, if X is 0, and the
input from the switches is 111, you would like outputs to be set as a =1, b=1, c=1, d=0, e=0, f=0,
g=0 (to display 7). However, if X is 1, and the input from the switches is 1111, you would like
outputs to be set as a =1, b=0, c=0, d=0, e=1, f=1, g=1 (to display F). For Octal conversion, any
input greater than 111, should produce a blank display.
Seven-Segment Decoder Outputs