CRC calculation for Serial ATA (SATA)

Question

After reading a lot I came to know that there is no SINGLE method of calculating CRC. I need method/algorithm/VHDL code for calculating CRC specifically for Serial ATA (SATA)

You are right. There is not a single algorithm. Why don't you choose one and implement it? (You certainly don't expect us to do it for you?) — Aki Suihkonen, Mar 17 '13 at 08:35
@AkiSuihkonen: SATA mandates a specific algorithm. OP can't choose their own and expect it to interoperate with existing hardware. — NPE, Mar 17 '13 at 08:36
It still sounds like "type it for me in google" kind of non-question. Not productive. — Aki Suihkonen, Mar 17 '13 at 08:38

score 4 · Answer 1 · answered Mar 17 '13 at 08:35

4

SATA uses IEEE 802.3 CRC. Here are some relevant resources:

Serial ATA Bus
Design and Implementation of a SATA Host Controller on a Spartan-6 FPGA (section 2.7.2 Error detection with CRC)
IEEE 802.3 Cyclic Redundancy Check (Xilinx application note)

answered Mar 17 '13 at 08:35

NPE

486,780
108
951
1,012

score 3 · Answer 2 · answered Mar 17 '13 at 14:58

3

Here is a complete description of that CRC, including the bit ordering and pre and post processing.

answered Mar 17 '13 at 14:58

Mark Adler

101,978
13
118
158

CRC calculation for Serial ATA (SATA)

2 Answers2