1. Crc16

1.1. Function description:

This demo shows the calculation of 16 bits CRC.

Configure the size of the polynomial is 16 bits for CRC16 calculation.

• Configure the CRC16.

• Write data to CRC calculator to start hardware calculation.

• Calculate the result of the CRC16 by software, then to compare with the hardware.

1.2. Detail configuration:

1.2.1. Crc16/ibm

Initial value	Reverse input	Reverse output	Polynomial size	Coefficients	Xor value
0	byte	byte	16 bits	0x8005	0

1.2.2. Crc16/maxim

Initial value	Reverse input	Reverse output	Polynomial size	Coefficients	Xor value
0	byte	byte	16 bits	0x8005	0xffff

1.2.3. Crc16/usb

Initial value	Reverse input	Reverse output	Polynomial size	Coefficients	Xor value
0xffff	byte	byte	16 bits	0x8005	0xffff

1.2.4. Crc16/modbus

Initial value	Reverse input	Reverse output	Polynomial size	Coefficients	Xor value
0xffff	byte	byte	16 bits	0x8005	0

1.2.5. Crc16/ccitt

Initial value	Reverse input	Reverse output	Polynomial size	Coefficients	Xor value
0	byte	byte	16 bits	0x1021	0

1.2.6. Crc16/ccitt-false

Initial value	Reverse input	Reverse output	Polynomial size	Coefficients	Xor value
0xffff	no	no	16 bits	0x1021	0

1.2.7. Crc16/x25

Initial value	Reverse input	Reverse output	Polynomial size	Coefficients	Xor value
0xffff	byte	byte	16 bits	0x1021	0xffff

1.2.8. Crc16/xmodem

Initial value	Reverse input	Reverse output	Polynomial size	Coefficients	Xor value
0	no	no	16 bits	0x1021	0

1.2.9. Crc16/dnp

Initial value	Reverse input	Reverse output	Polynomial size	Coefficients	Xor value
0	byte	byte	16 bits	0x3d65	0xffff

1.3. Test result:

If the output result is same as the result calculated by software according to the theory, then print "pass", or print "fail".

1.4. IO connection:

None