SBAA106A June   2020  – August 2021 ADS112C04 , ADS112U04 , ADS114S06 , ADS114S08 , ADS122C04 , ADS122U04 , ADS1235 , ADS1235-Q1 , ADS124S06 , ADS124S08 , ADS1259 , ADS1259-Q1 , ADS125H01 , ADS125H02 , ADS1260 , ADS1260-Q1 , ADS1261 , ADS1262 , ADS1263 , ADS127L01 , ADS131A02 , ADS131A04 , ADS131M04 , ADS131M06 , ADS131M08

 

  1.   Trademarks
  2. 1Introduction
  3. 2Simple Checksum
    1. 2.1 Checksum Code Example
  4. 3CRC
    1. 3.1 CRC Generic Computations
      1. 3.1.1 Using XOR Bitwise Computation
      2. 3.1.2 Using Lookup Tables
        1. 3.1.2.1 Table Initialization
        2. 3.1.2.2 CRC Computation
      3. 3.1.3 CRC Computation Differences Between the ADS122U04 and ADS122C04
        1. 3.1.3.1 Byte Reflection Example
        2. 3.1.3.2 Reassembling Data Using Byte Reflection for CRC Computation
  5. 4Hamming Code
    1. 4.1 Hamming Code Computation
      1. 4.1.1 Hamming Code Computation Example
        1. 4.1.1.1 Counting Bits for Parity and Checksum Computations
          1. 4.1.1.1.1 Example of Counting Set Bits in the Data
          2. 4.1.1.1.2 Example of Counting Set Bits Using a Lookup Table
      2. 4.1.2 Validation of Transmitted Data
        1. 4.1.2.1 Hamming Validation
        2. 4.1.2.2 Checksum Validation
        3. 4.1.2.3 Error Correction
  6. 5Summary
  7. 6References
  8. 7Revision History

5 Summary

As mission critical systems become more commonplace with concerns of safety, validation of the transfer of data becomes a priority. Data integrity can be analyzed in a variety of ways using many differing techniques. Choosing the correct method for the application may be difficult. However, learning the methods discussed can be useful in deciding the level of data integrity required and choosing the best ADC for the job.