This code defines three constants using the `#define` preprocessor directive,...

This code defines three constants using the #define preprocessor directive, which is commonly used in C and C++ programming. Here's what each line does:

1. #define SYNC_BIT_NUMBER 40:

   • This defines a constant named SYNC_BIT_NUMBER with the value 40. This might represent a total number of bits involved in synchronization in a specific context, such as communication protocols.

2. #define SYNC_BYTE 0x01:

   • This defines a constant named SYNC_BYTE with the hexadecimal value 0x01. This is likely used as a special synchronization marker or control byte in a binary data communication or processing system.

3. #define WEAK_BYTE 0x02:

   • This defines a constant named WEAK_BYTE with the hexadecimal value 0x02. This could represent another specific control byte or marker, possibly assigned to represent a "weak" signal or something specific to the system being implemented.

In summary, the code specifies constants that are likely used in a communication or data-processing-related system for handling synchronization and other protocol-specific features.