crc6_CDMA2000_A

#include <stdio.h>

void main()
{
unsigned char CRC_Table[256] = {
0x00, 0x9C, 0xA4, 0x38, 0xD4, 0x48, 0x70, 0xEC, 0x34, 0xA8, 0x90, 0x0C, 0xE0, 0x7C, 0x44, 0xD8,
0x68, 0xF4, 0xCC, 0x50, 0xBC, 0x20, 0x18, 0x84, 0x5C, 0xC0, 0xF8, 0x64, 0x88, 0x14, 0x2C, 0xB0,
0xD0, 0x4C, 0x74, 0xE8, 0x04, 0x98, 0xA0, 0x3C, 0xE4, 0x78, 0x40, 0xDC, 0x30, 0xAC, 0x94, 0x08,
0xB8, 0x24, 0x1C, 0x80, 0x6C, 0xF0, 0xC8, 0x54, 0x8C, 0x10, 0x28, 0xB4, 0x58, 0xC4, 0xFC, 0x60,
0x3C, 0xA0, 0x98, 0x04, 0xE8, 0x74, 0x4C, 0xD0, 0x08, 0x94, 0xAC, 0x30, 0xDC, 0x40, 0x78, 0xE4,
0x54, 0xC8, 0xF0, 0x6C, 0x80, 0x1C, 0x24, 0xB8, 0x60, 0xFC, 0xC4, 0x58, 0xB4, 0x28, 0x10, 0x8C,
0xEC, 0x70, 0x48, 0xD4, 0x38, 0xA4, 0x9C, 0x00, 0xD8, 0x44, 0x7C, 0xE0, 0x0C, 0x90, 0xA8, 0x34,
0x84, 0x18, 0x20, 0xBC, 0x50, 0xCC, 0xF4, 0x68, 0xB0, 0x2C, 0x14, 0x88, 0x64, 0xF8, 0xC0, 0x5C,
0x78, 0xE4, 0xDC, 0x40, 0xAC, 0x30, 0x08, 0x94, 0x4C, 0xD0, 0xE8, 0x74, 0x98, 0x04, 0x3C, 0xA0,
0x10, 0x8C, 0xB4, 0x28, 0xC4, 0x58, 0x60, 0xFC, 0x24, 0xB8, 0x80, 0x1C, 0xF0, 0x6C, 0x54, 0xC8,
0xA8, 0x34, 0x0C, 0x90, 0x7C, 0xE0, 0xD8, 0x44, 0x9C, 0x00, 0x38, 0xA4, 0x48, 0xD4, 0xEC, 0x70,
0xC0, 0x5C, 0x64, 0xF8, 0x14, 0x88, 0xB0, 0x2C, 0xF4, 0x68, 0x50, 0xCC, 0x20, 0xBC, 0x84, 0x18,
0x44, 0xD8, 0xE0, 0x7C, 0x90, 0x0C, 0x34, 0xA8, 0x70, 0xEC, 0xD4, 0x48, 0xA4, 0x38, 0x00, 0x9C,
0x2C, 0xB0, 0x88, 0x14, 0xF8, 0x64, 0x5C, 0xC0, 0x18, 0x84, 0xBC, 0x20, 0xCC, 0x50, 0x68, 0xF4,
0x94, 0x08, 0x30, 0xAC, 0x40, 0xDC, 0xE4, 0x78, 0xA0, 0x3C, 0x04, 0x98, 0x74, 0xE8, 0xD0, 0x4C,
0xFC, 0x60, 0x58, 0xC4, 0x28, 0xB4, 0x8C, 0x10, 0xC8, 0x54, 0x6C, 0xF0, 0x1C, 0x80, 0xB8, 0x24
};
  unsigned char CRC = 0x3f;

  char Str[9] = "123456789";

  for (int i=0; i<9; i++)
  {
    CRC = CRC_Table[CRC ^ Str[i] ] ;
  }

  CRC = CRC >> 2;

  printf("%02x", CRC);
}