example.h

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//-----------------------------------------------------------------------------
// Defines
//-----------------------------------------------------------------------------
#define NUM_SEEK_PRESETS 4

//-----------------------------------------------------------------------------
// Defines
//-----------------------------------------------------------------------------


//-----------------------------------------------------------------------------
// Global variables
//-----------------------------------------------------------------------------
extern u16 xdata si470x_shadow[16];

//-----------------------------------------------------------------------------
// Function prototypes
//-----------------------------------------------------------------------------
void si470x_reset(void);
void si470x_powerup (void);
void si470x_initialize (void);
void si470x_powerdown (void);
void si470x_set_volume (u8 volume, u8 dmute);
void si470x_tune (u16 frequency);
u8 si470x_seek (u8 seekup);
u16 si470x_get_frequency(void);
void si470x_autoseek(void);

void wait_gpio2(bit state);
void wait_ms(u16 ms);
void _nop_(void);

void si470x_reg_write (u8 firstreg, u8 lastreg); 
void si470x_reg_read  (u8 firstreg, u8 lastreg); 
void initRds(void);
void updateRds(void);