Comments (5)
Modify polyLow
to 0x31
and polyHigh
to 0x00
, and you can get the correct result.
from node-crc.
Thank you very much for your help. Unfortunately, I still seem to hit a road block.
I'm using your module in node-red and:
const result = nodeCrc.crc8(Buffer.from([0xBE, 0xEF])).toString('hex')
works and returns 1A
.
Using
const result = nodeCrc.crc8(
0x31, // polyLow
0x00, // polyHigh
8,
0xFF, // initLow
0xFF, // initHigh
0x00, // XORlow
0x00, // XORhigh
false, // reflect
Buffer.from([0xBE, 0xEF])
).toString('hex')
does not work and throws TypeError: failed to downcast any to Buffer
Since the first example is working, I concluded that the error is due to me messing up the usage, i.e. setting the wrong parameters.
Using:
- Linux 5.15.84-v7+ arm LE
- Node-RED version: v3.0.2
- Node.js version: v18.14.0
- NPM version: v9.3.1
from node-crc.
Use the crc
function, not crc8
.
from node-crc.
See: https://github.com/magiclen/node-crc/blob/master/lib/lib.d.ts
from node-crc.
D'oh! Now that you put me on the right track, it is quite obvious. Thanks!
from node-crc.
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from node-crc.