LFSR in c programming

+1 vote
asked May 18 by (130 points)

hi there, i need a help about this excersise:

A grammatically fluctuating feedback with feedback (Shift Register, LFSR).
The program is required or appears as parameters:
3.1 the number of LFSR digits
3.2 initial value of LFSR in binary system
3.3 The number of cycles he will look for. If the number given by the user is 0, it will run for 2^n
circles
The program, accordingly with the result of LFSR should choose a primitive polynomial for LFSR  from the according table:
Bits (n) | Feedback polynomial| Period
2         x2+x+1                 3
3         x3+x2+1                7
4         X4+x3+1                15
5         X5+x3+1                31
6         X6+x5+1                63
7         X7+x6+1                127
8         X8+x6+x5+x4+1          255
9         X9+x5+1                511
10        X10+x7+1               1,023
11        X11+x9+1               2,047
12        X12+x11+x10+x4+1       4,095

the only thing that i want is just to help me on how to start with this (or to understand more about this excersise) so i could continue and solve the problem by myself.

Thanks.

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