ARRAY of BITS in C

Projects Programming
17

I haven't been doing any Arduino programming lately. I'm not sure if this solves
the particular problem at hand, but it is something I've been using with my PIC24
programs. I moved it over into an Arduino sketch, where it compiles and seems
to work ok. Maybe someone can see if it works in a real Arduino program, maybe
it can be massaged into what the OP wants to do. ???

/*
test_struct sketch
*/


typedef struct {
  union {
    struct {	  	
      unsigned F15:1;
      unsigned F14:1;
      unsigned F13:1;
      unsigned F12:1;
      unsigned F11:1;
      unsigned F10:1;
      unsigned F9:1;
      unsigned F8:1;
      unsigned F7:1;
      unsigned F6:1;
      unsigned F5:1;
      unsigned F4:1;
      unsigned F3:1;
      unsigned F2:1;
      unsigned F1:1;
      unsigned F0:1;
    };
    struct {
	  unsigned char hiflags;
	  unsigned char loflags;
    };
  };
} GFLAGS;


/**** General Use Flags ****/
GFLAGS SYSflags;             // 16-bit flag struct.

#define _FEXIT   (SYSflags.F0)       // received exit signal.
#define _fECHO   (SYSflags.F1)      // echo enable flag.
#define _fU1     (SYSflags.F2)      // redirect comms to UART1.
#define _fU2     (SYSflags.F3)      // redirect comms to UART2.
#define _fRXD1   (SYSflags.F4)	    // U1 char has been received.
#define _fTXD1   (SYSflags.F5)	    // U1 char has been sent.
#define _fRXD2   (SYSflags.F6)	    // U2 char has been received.
#define _fTXD2   (SYSflags.F7)	    // U2 char has been sent.
#define _fCMDBUG (SYSflags.F15)	    // cmd debug enable. 


void setup() 
{
    SYSflags.hiflags=0xE0;
    _fCMDBUG=1;
}

void loop()
{
}