​​​​Question:

What  are some common checksum calculations in Netlinx programming?

Answer:

The attached checksum.axi file contains many common checksum calculations.​

The included checksum calculations are:

• checksumAdd (A sum of all bytes, the most common checksum)
• checksumBxor (bxor bitwise exclusive or checksum, for some Sony)
• checksum1sCompliment (1's compliment checksum)
• checksum1sCompliment2byte (1's compliment checksum, returns "lo byte,hi byte" for Hitach HVD30)
• checksum2sCompliment (2's compliment checksum)
• checksum2sCompliment7bit (2's compliment checksum, 7 bit for roland/yamaha MIDI sysx)
• crc8
• CRC16 (IBM Checksum)
• crc16_bitwise
• CRC16C (CCITT Checksum)
• CRC32 (IEEE 802.3 Checksum)​​