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| Keywords: Crc shift register 2.svg en CRC shift register Own Biezl Inkscape GNU octave / MATLAB Simulation <source lang matlab > Biezl 2008 shiftRegister andvanced circuit shiftRegister2 basic circuit printf Definition data 1 1 Bit0/LSB data 1 lenght data MSB\n ; data 1 0 0 0 1 polynom 1 1 0 0 1 shiftRegister zeros 1 length polynom -1 ; size shiftRegister size data ---- for i length data -1 1 temp data 1 i shiftRegister 1 length shiftRegister ; MSB for j length shiftRegister -1 2 Schieben if polynom 1 j 0 shiftRegister 1 j shiftRegister 1 j-1 ; else shiftRegister 1 j shiftRegister 1 j-1 temp; XOR end end shiftRegister 1 1 temp; LSB shiftRegister end ---- shiftRegister2 zeros 1 length polynom -1 ; dataExt zeros 1 length polynom -1 data; for i length dataExt -1 1 temp dataExt 1 i shiftRegister2 1 length shiftRegister2 ; MSB temp2 shiftRegister2 1 length shiftRegister2 ; for j length shiftRegister2 -1 2 if polynom 1 j 0 shiftRegister2 1 j shiftRegister2 1 j-1 ; else shiftRegister2 1 j shiftRegister2 1 j-1 temp2; end end shiftRegister2 1 1 temp; LSB shiftRegister2 end ---- check shiftRegister data ; LSB -> MSB shiftRegisterCheck zeros 1 length polynom -1 ; for i length check -1 1 temp check 1 i shiftRegisterCheck 1 length shiftRegisterCheck ; MSB for j length shiftRegisterCheck -1 2 if polynom 1 j 0 shiftRegisterCheck 1 j shiftRegisterCheck 1 j-1 ; else shiftRegisterCheck 1 j shiftRegisterCheck 1 j-1 temp; end end shiftRegisterCheck 1 1 temp; LSB shiftRegisterCheck end ---- check2 shiftRegister2 data ; LSB -> MSB shiftRegisterCheck2 zeros 1 length polynom -1 ; for i length check2 -1 1 temp check2 1 i shiftRegisterCheck2 1 length shiftRegisterCheck2 ; MSB temp2 shiftRegisterCheck2 1 length shiftRegisterCheck2 ; MSB for j length shiftRegisterCheck2 -1 2 if polynom 1 j 0 shiftRegisterCheck2 1 j shiftRegisterCheck2 1 j-1 ; else shiftRegisterCheck2 1 j shiftRegisterCheck2 1 j-1 temp2; end end shiftRegisterCheck2 1 1 temp; LSB shiftRegisterCheck2 end ---- shiftRegister shiftRegisterCheck shiftRegister2 shiftRegisterCheck2 </source> Coding theory | ||||
