mbed_example / Mbed OS CRC_example

CRC example to compute 32-bit CRC .

main.cpp@1:6f792125397a, 2017-12-29 (annotated)

Committer:
deepikabhavnani
Date:
Fri Dec 29 23:13:37 2017 +0000
Revision:
1:6f792125397a
Parent:
0:4ea3a9a52bb6
Child:
2:a9d9b5c4a32b
SlowCRC is renamed to BitwiseCRC; CRC classes are not template class anymore

Who changed what in which revision?

UserRevisionLine numberNew contents of line
deepikabhavnani 0:4ea3a9a52bb6 1 #include "mbed.h"
deepikabhavnani 1:6f792125397a 2 #include "BitwiseCRC.h"
deepikabhavnani 0:4ea3a9a52bb6 3 #include "FastCRC.h"
deepikabhavnani 0:4ea3a9a52bb6 4
deepikabhavnani 0:4ea3a9a52bb6 5 #define FAST_COMPUTE 1
deepikabhavnani 0:4ea3a9a52bb6 6
deepikabhavnani 0:4ea3a9a52bb6 7 #if defined(FAST_COMPUTE)
deepikabhavnani 1:6f792125397a 8 #define CRC_ALGO FastCRC
deepikabhavnani 0:4ea3a9a52bb6 9 #else
deepikabhavnani 1:6f792125397a 10 #define CRC_ALGO BitwiseCRC
deepikabhavnani 0:4ea3a9a52bb6 11 #endif
deepikabhavnani 0:4ea3a9a52bb6 12
deepikabhavnani 0:4ea3a9a52bb6 13 char test[] = "123456789";
deepikabhavnani 0:4ea3a9a52bb6 14 uint32_t crc;
deepikabhavnani 0:4ea3a9a52bb6 15
deepikabhavnani 1:6f792125397a 16 int crc_calculate(crc_polynomial_type_t crc_type) {
deepikabhavnani 1:6f792125397a 17 CRC_ALGO ct(crc_type);
deepikabhavnani 0:4ea3a9a52bb6 18
deepikabhavnani 0:4ea3a9a52bb6 19 ct.init();
deepikabhavnani 1:6f792125397a 20 ct.compute((void *)test, strlen((const char*)test), &crc);
deepikabhavnani 0:4ea3a9a52bb6 21
deepikabhavnani 1:6f792125397a 22 printf("The CRC of 0x%x data \"123456789\" is : 0x%lx\n",
deepikabhavnani 0:4ea3a9a52bb6 23 ct.get_polynomial(), crc);
deepikabhavnani 0:4ea3a9a52bb6 24 ct.deinit();
deepikabhavnani 0:4ea3a9a52bb6 25 return 0;
deepikabhavnani 0:4ea3a9a52bb6 26 }
deepikabhavnani 0:4ea3a9a52bb6 27
deepikabhavnani 0:4ea3a9a52bb6 28 int main() {
deepikabhavnani 1:6f792125397a 29
deepikabhavnani 1:6f792125397a 30 crc_calculate(CRC_32BIT);
deepikabhavnani 1:6f792125397a 31 crc_calculate(CRC_16BIT_IBM);
deepikabhavnani 1:6f792125397a 32 crc_calculate(CRC_16BIT_CCITT);
deepikabhavnani 1:6f792125397a 33
deepikabhavnani 1:6f792125397a 34 printf("End\n");
deepikabhavnani 0:4ea3a9a52bb6 35 return 0;
deepikabhavnani 0:4ea3a9a52bb6 36 }