crc

如何从解码的红外遥控器确定校验和(How to determine checksum from decoded IR remotes)

2021-09-25 01:59:14    分类:技术分享    arduino   checksum   crc   infrared

How to determine checksum from decoded IR remotes

I have a small 3.5ch USeries helicopter controlled by an IR remote control, using an Arduino I have decoded its 32 bit protocol. Except for last 3 bits which appear to be some form of checksum. As I have successfully decoding the channels from the remote, in that they track their corresponding controls, I can see that slight changes in the controls yield specific changes in the 3 bits, that are very reproducible and deterministic. Whereas I have not yet found a common theme or formal to reproduce the supposed checksum. I have tried simple things like Parity or Added Checksum. I can see the

2021-09-24 02:52:56    分类:问答    arduino   checksum   crc   infrared

棘手的CRC算法(tricky crc algorithm)

2021-09-18 11:52:41    分类:技术分享    crc

跨平台应用程序的CRC(CRC for cross platform applications)

2021-09-15 06:25:20    分类:技术分享    c#   c   vb.net   crc

找出 RS232 数据的 CRC 或 CHECKSUM(Find out CRC or CHECKSUM of RS232 data)

2021-09-14 23:59:06    分类:技术分享    reverse-engineering   checksum   serial-port   crc

找出 RS232 数据的 CRC 或 CHECKSUM(Find out CRC or CHECKSUM of RS232 data)

2021-09-14 23:57:05    分类:技术分享    reverse-engineering   checksum   serial-port   crc

如何在python3中计算ANSI CRC16多项式（0x8005）？(how to calculate ANSI CRC16 polynomial (0x8005) in python3?)

2021-09-13 21:07:54    分类:技术分享    python   python-3.x   crc   crc16

为什么帧校验序列在以太网帧的末尾而不是其他地方(Why is the Frame Check Sequence at the end of an Ethernet frame and not somewhere else)

2021-09-11 13:48:07    分类:技术分享    checksum   ethernet   crc   data-link-layer

undetected error probabilities in CRC and relation to link error rate

How does the probability of undetected error vary as a function of link type? are they related at all? I mean if the link is lossy or has a higher bit error rate how this would affect the Undetected Error Probability? Is there any formula to calculate that?

2021-09-07 20:31:34    分类:问答    crc

how to calculate ANSI CRC16 polynomial (0x8005) in python3?

I tried to calculate ANSI CRC16 polynomial (0x8005) using this code import crcmod crc16 = crcmod.mkCrcFun(0x8005, 0xffff, True) but I got this error message ValueError: The degree of the polynomial must be 8, 16, 24, 32 or 64

2021-09-05 10:57:23    分类:问答    python   python-3.x   crc   crc16