LRI2K datasheet(86/89 Pages) STMICROELECTRONICS

部件名	LRI2K

功能描述	2048-bit EEPROM tag IC at 13.56 MHz, with 64-bit UID and kill code, ISO 15693 and ISO 18000-3 Mode 1 compliant

PDF	89 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

86 / 89 page

CRC (Informative)

LRI2K

86/89

}

else

// check CRC

{

number_of_databytes = NUMBER_OF_BYTES + 2;

}

current_crc_value = PRESET_VALUE;

for (i = 0; i < number_of_databytes; i++)

{

current_crc_value = current_crc_value ^ ((unsigned

int)array_of_databytes[i]);

for (j = 0; j < 8; j++)

{

if (current_crc_value & 0001h)

{

current_crc_value = (current_crc_value >> 1) ^

POLYNOMIAL;

}

else

{

current_crc_value = (current_crc_value >> 1);

}

if (calculate_or_check_crc == CALC_CRC)

{

current_crc_value = ~current_crc_value;

printf ("Generated CRC is 0x%04X\n", current_crc_value);

// current_crc_value is now ready to be appended to the data

stream

// (first LSByte, then MSByte)

}

else

// check CRC

{

if (current_crc_value == CHECK_VALUE)

{

printf ("Checked CRC is ok (0x%04X)\n",

current_crc_value);

}

else

{

printf ("Checked CRC is NOT ok (0x%04X)\n",

current_crc_value);

}

LRI2K 数据表(PDF) 86 Page - STMicroelectronics

LRI2K 数据表(HTML) 86 Page - STMicroelectronics

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