CRC-16 VI calculator

[User79]

Hi everyone,

I am using labview 2017 and getting measurements from my serial port. I don't have any problems receiving the data but still, I would like to check it out using the CRC-16. It is a CRC-16 based on polynomilal 0x8005 with an initial value at 0x0000.

Here is an example of the fata I get : 5B01D0010088065D

5B is the start of packet

5D is the end if packet

8806 is the CRC-16 in this particular example and applies to evrything before (meaning : 5B01D00100)

When using this online CRC calculator I get the good CRC (need to swap the values) looking at line "CRC-16/BUYPASS". So i guess that is the offical name of the CRC-16 I am looking for.

I have tried using the solution in this post, but it doesn't workout for me :https://forums.ni.com/t5/LabVIEW/CRC-16-with-0x8005-polynomial/td-p/3271384/page/2  And it corresponds to the "CRC-16/ARC" of the online calculator.

Would anyone know where I could find the CRC-16/BUYPASS VI ?

Thanks.

User

[jamiva · Accepted solution]

This should work

[User79]

Thanks Jamiva, it works perfectly.

[rcpacini]

Thanks for the post.

For those who need a CRC-16 that require XOR Out, Reflect Input & Reflect Output (i.e. Reverse Bits):

Verification

Verified with test vectors from https://crccalc.com/

Source: https://crccalc.com/
Data="123456789"
Algorithm          CRC-16 Poly   Init   RefIn RefOut XorOut
CRC-16/CCITT-FALSE 0xC782 0x1021 0xFFFF false false  0x0000
CRC-16/ARC         0xD4C1 0x8005 0x0000 true  true  0x0000
CRC-16/AUG-CCITT   0xEAEE 0x1021 0x1D0F false false 0x0000
CRC-16/BUYPASS     0x80A5 0x8005 0x0000 false false 0x0000
CRC-16/CDMA2000    0xCD4F 0xC867 0xFFFF false false 0x0000
CRC-16/DDS-110     0x0EA6 0x8005 0x800D false false 0x0000
CRC-16/DECT-R      0xEC38 0x0589 0x0000 false false 0x0001
CRC-16/DECT-X      0xEC39 0x0589 0x0000 false false 0x0000
CRC-16/DNP         0x5265 0x3D65 0x0000 true  true  0xFFFF
CRC-16/EN-13757    0x4DFE 0x3D65 0x0000 false false 0xFFFF
CRC-16/GENIBUS     0x387D 0x1021 0xFFFF false false 0xFFFF
CRC-16/MAXIM       0x2B3E 0x8005 0x0000 true  true  0xFFFF
CRC-16/MCRF4XX     0x2F8D 0x1021 0xFFFF true  true  0x0000
CRC-16/RIELLO      0xB9BE 0x1021 0xB2AA true  true  0x0000
CRC-16/T10-DIF     0x76E0 0x8BB7 0x0000 false false 0x0000
CRC-16/TELEDISK    0xD192 0xA097 0x0000 false false 0x0000
CRC-16/TMS37157    0xA53D 0x1021 0x89EC true  true  0x0000
CRC-16/USB         0x6B81 0x8005 0xFFFF true  true  0xFFFF
CRC-A              0x71F4 0x1021 0xC6C6 true  true  0x0000
CRC-16/KERMIT      0x200A 0x1021 0x0000 true  true  0x0000
CRC-16/MODBUS      0x947E 0x8005 0xFFFF true  true  0x0000
CRC-16/X-25        0xD072 0x1021 0xFFFF true  true  0xFFFF
CRC-16/XMODEM      0x2672 0x1021 0x0000 false false 0x0000

[rcpacini]

Oops, had the wrong crc-16 test vectors (used "1" instead of "123456789")

Fixed:

Data="123456789"
Algorithm          CRC-16 Poly   Init   RefIn RefOut XorOut
CRC-16/CCITT-FALSE 0x29B1 0x1021 0xFFFF false false  0x0000
CRC-16/ARC         0xBB3D 0x8005 0x0000 true  true   0x0000
CRC-16/AUG-CCITT   0xE5CC 0x1021 0x1D0F false false  0x0000
CRC-16/BUYPASS     0xFEE8 0x8005 0x0000 false false  0x0000
CRC-16/CDMA2000    0x4C06 0xC867 0xFFFF false false  0x0000
CRC-16/DDS-110     0x9ECF 0x8005 0x800D false false  0x0000
CRC-16/DECT-R      0x007E 0x0589 0x0000 false false  0x0001
CRC-16/DECT-X      0x007F 0x0589 0x0000 false false  0x0000
CRC-16/DNP         0xEA82 0x3D65 0x0000 true  true   0xFFFF
CRC-16/EN-13757    0xC2B7 0x3D65 0x0000 false false  0xFFFF
CRC-16/GENIBUS     0xD64E 0x1021 0xFFFF false false  0xFFFF
CRC-16/MAXIM       0x44C2 0x8005 0x0000 true  true   0xFFFF
CRC-16/MCRF4XX     0x6F91 0x1021 0xFFFF true  true   0x0000
CRC-16/RIELLO      0x63D0 0x1021 0xB2AA true  true   0x0000
CRC-16/T10-DIF     0xD0DB 0x8BB7 0x0000 false false  0x0000
CRC-16/TELEDISK    0x0FB3 0xA097 0x0000 false false  0x0000
CRC-16/TMS37157    0x26B1 0x1021 0x89EC true  true   0x0000
CRC-16/USB         0xB4C8 0x8005 0xFFFF true  true   0xFFFF
CRC-A              0xBF05 0x1021 0xC6C6 true  true   0x0000
CRC-16/KERMIT      0x2189 0x1021 0x0000 true  true   0x0000
CRC-16/MODBUS      0x4B37 0x8005 0xFFFF true  true   0x0000
CRC-16/X-25        0x906E 0x1021 0xFFFF true  true   0xFFFF
CRC-16/XMODEM      0x31C3 0x1021 0x0000 false false  0x0000

[rcpacini]

Better performance for large data sets:

[RVallieu]

Can someone kindly post in LV2019?

Snippet isn't work for me for some reason either.

[RVallieu]

I got snippet to work by switching browsers.

[Lukhe]