Networking CRC计算卡滞
我有一个多项式CRC,我无法解决 x^5+x^2+1 数据:101110001 我喜欢这样:Networking CRC计算卡滞,networking,error-handling,crc,Networking,Error Handling,Crc,我有一个多项式CRC,我无法解决 x^5+x^2+1 数据:101110001 我喜欢这样: 100101 | 1011100110001 100101 ------- 0010110 000000 ------ 101101 100101 ------ 010001 000000
100101 | 1011100110001
100101
-------
0010110
000000
------
101101
100101
------
010001
000000
------
100010
000000 <- I wrote here 0's because 100101 > 100010
------
1000100
100101
-------
1100001 <- Here is the problem! It's more than 5 bits.
100101 | 101110001
100101
-------
0010110
000000
------
101101
100101
------
010001
000000
------
100010
000000我不明白你的“000000”行,但是这个怎么样:
Input data: 1011100110001
Polynom: 100101 (n = 6)
101110011000100000 <- expand input data by n-1 zeros
100101 <- polynom aligned to most left 1 of input data
--------
00101101 <- input XOR polynom, then get next input bit
100101
------
00100010 <- and so on...
100101
-------
000111001
100101
------
0111000
100101
------
0111010
100101
------
0111110
100101
-------
0110110
100101
------
0100110
100101 <- ... until all input bits are "used up"
------
000011 <- CRC result
输入数据:101110001
多项式:100101(n=6)
10111000100000你为什么要做“等等”这行?我看到您从数据中添加了多个数字,其中的数字对于XOR来说是不够的,但我认为,在所有情况下,结果都小于除法器,我们添加数字