This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Can you Explain Me this ?

#define  MAIN_CARD				0x00
#define  AUXILIARY_CARD			0xFF
#define  AUXILIARY_CARD_1		0x01
#define  AUXILIARY_CARD_2		0x02
#define  AUXILIARY_CARD_3		0x03
#define  AUXILIARY_CARD_4		0x04
#define  AUXILIARY_CARD_5		0x05
#define  AUXILIARY_CARD_6		0x06
#define  AUXILIARY_CARD_7		0x07
#define  AUXILIARY_CARD_8		0x08
what is meaning (Signification of)MAIN_CARD ?
what is meaning (Signification of) AUXILIARY_CARD_1?
what is meaning (Signification of) AUXILIARY_CARD_2?
what is meaning (Signification of) AUXILIARY_CARD_3?
what is meaning (Signification of) AUXILIARY_CARD_4?
what is meaning (Signification of) AUXILIARY_CARD_5?
what is meaning (Signification of) AUXILIARY_CARD_6?
what is meaning (Signification of) AUXILIARY_CARD_7?
...

  • The meaning of these specific values (0, 0xFF,1..8) is application-specific, as is the significance of the identifiers (like NAME_CARD).

    If you're looking for information on how the #define directive works, see the K & R book or any C or C++ reference book.