Questions tagged [crc]
CRC, or Cyclic Redundancy Check, is a technique commonly used to detect accidental changes to data
61 questions
1 vote
0 answers
82 views
DDR4 bit, byte, nibble swapping
I’m working on a DDR4 PCB layout and want to confirm the allowed rules for bit swapping, byte lane swapping, and nibble swapping, especially when ECC or CRC is enabled. From what I understand so far: ...
1 vote
3 answers
157 views
Could a CRC-15 CAN be transformed into 8 bytes in an embedded system?
I am analyzing calibration binary files of an embedded system (BMS) that likely uses a CRC-15 CAN checksum. From my firmware analysis, I have found a PECLookup table, which suggests that a CRC-15 CAN ...
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1 vote
0 answers
195 views
What's the CRC Polynomial in EnDAT 2.2 protocol?
I am implementing an EnDAT2.2 readout in an FPGA. Can't find the CRC polynomial anywhere in the document. Is 5-bit CRC something so standard that it doesn't need to be mentioned? https://www....
- 1,677
0 votes
2 answers
275 views
CRC check for received data through UART
I am sending/receiving data using UART between STM32G4 board and other board. While I am sending the data I am adding the CRC and transmitting it through UART to other board. While receiving how do I ...
- 23
0 votes
3 answers
1k views
STM32G4 CRC peripheral. How to select Polynomial for CRC? [closed]
I am working with STM32G491RE. I need to calculate CRC16 for data to send it through UART. How do I select the CRC polynomial? Can you please suggest if there is any reference to select the poly? Can ...
- 23
0 votes
1 answer
633 views
STM32G4 CRC peripheral. What is going wrong in my configuration?
I am trying to configure the CRC peripheral of my STM32G431C8T6 to work on 8-bit input values. The peripheral is calculating a checksum however if i compare the checksum it has calculated with the ...
3 votes
5 answers
4k views
Ways to send data with CRC validation
The data frames that are always sent using CRC are as follows: a CRC calculated for each byte (DATA) But to make the connection faster, could you send a single CRC for a whole frame of data? the ...
- 457
0 votes
2 answers
2k views
Maximum message size for polynomial CRC-8 0x07 and hamming distance = 3
I am looking for maximum message size for my CRC-8 0x07 polynomial for Hamming distance = 3. Do you know some website with these types of information? Or possibly, do you know how to calculate it? I ...
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