[参考译文] MSP430FR2355：我能否获得一个标准 CRC16 示例、根据特定协议的校验值来验证自身？

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https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/1642029/msp430fr2355-can-i-get-a-standard-crc16-example-that-verifies-itself-against-the-check-value-of-a-specific-protocol

器件型号： MSP430FR2355

我在使 CRC 模块正常工作时遇到问题。我不需要代码审核、只是 CRC 的一个实际示例、它会为其实现的任何协议返回有效校验值（CRCing “123456789"的“的结果的结果，不带空终止符）。

3 个月前

0 admin 3 个月前

TI__Guru**** 2873850 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

很久以前,有一次,我创建了三种方式的代码。借助此实用标题：

/*
  CRC routines.

  Some MSP430 devices have CRC hardware to help. That hardware produces
  results identical to this only if the data is written to the reverse
  bit order input register CRCDIRB. Results are in the normal bit order
  register CRCINIRES. Go figure.

  Two versions are available to trade space for time. The iterative and
  slower version is the default but a faster table version is used
  if CRCTABLE is defined. That requires a large (512 bytes) table.

  When compiled with "msp430-gcc -c -O2" the code size is:

  Table:     592
  Iterative: 120
  Hardware:   44

  If the target device has the CRC hardware then that is used. If the
  hardware is used the crc parameteris ignored. When hardware support is
  available all this file provides is the routine to process a string of
  data. If that isn't required, just use crc16.h and the macros will do
  the work.

  When tested with the usual test string of "123456789" all versions return
  0x29B1.

 */