disp.c

基于snd1c芯片的mp3播放器源代码

*   Print the sound level
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_sound_level (void)
{
Byte    volume;

  if (!bargraph) return;
  volume = song_get_level();
  if (func_state == 5)
    {
    LED_ON = 7;
    if (MP3CON & MSK_MPBBST) LED_FAST = 1;
    else LED_FAST = 2;
    return;
    }
  // volume must be between 0 -> 31
  if      (volume < 7 ) LED_ON = 0;
  else if (volume < 14) LED_ON = 1;
  else if (volume < 20) LED_ON = 3;
  else if (volume < 26) LED_ON = 7;
  else                LED_ON = 15;
  LED_FAST = 3;
}


/*F**************************************************************************
* NAME: print_voice_vol
*----------------------------------------------------------------------------
* PARAMS:
*
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print the voice volume
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_voice_vol (char volume)
{
  if (!bargraph) return;
  // volume must be between 0 -> 4
  LED_ON = (15 >> (4 - volume));
  LED_FAST = 3;
}


/*F**************************************************************************
* NAME: print_time
*----------------------------------------------------------------------------
* PARAMS:
*   - min: minute to display
*   - sec: second to display
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print time on the LCD
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_time (Byte min, Byte sec)
{
  print_decim(min, TRUE);
  print_decim(sec, FALSE);
}


/*F**************************************************************************
* NAME: print_sec
*----------------------------------------------------------------------------
* PARAMS:
*   - sec: second to display
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print second of time on the LCD
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_sec (Byte sec)
{
  if (func_timeout>2)
    {
    func_state = 0;
    bargraph = FALSE;
    LED_ON = (8 >> ref_state);
    if (recording) LED_ON = 15 - LED_ON;
    LED_FAST = 1;
    song_sound = SND_VOLUME;
    }
  else func_timeout++;
  if (sec);
  //  print_decim(sec, FALSE);
}


/*F**************************************************************************
* NAME: print_min
*----------------------------------------------------------------------------
* PARAMS:
*   - min: minute to display
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print minute of time on the LCD
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_min (Byte min)
{
  print_decim(min, TRUE);
}


/*F**************************************************************************
* NAME: print_kbd_lock
*----------------------------------------------------------------------------
* PARAMS:
*
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print the lock status
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_kbd_lock (void)
{
}


/*F**************************************************************************
* NAME: print_mem
*----------------------------------------------------------------------------
* PARAMS:
*   - mem_type  SYMB_DF
*               SYMB_MMC1
*               SYMB_MMC2
*               SYMB_NO_MEM
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print the memory type on the LCD
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_mem (Byte mem_type)
{
if (mem_type);
}


/*F**************************************************************************
* NAME: print_repeat
*----------------------------------------------------------------------------
* PARAMS:
*   status: - TRUE:  play is repeated after last song
*           - FALSE: play is stopped after last song
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print repeat status on the LCD
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_repeat (bit status)
{
if (status);
}


/*F*****************************************************************************
* NAME: print_file_name
*-------------------------------------------------------------------------------
* PARAMS:
*
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print to lcd the current file name
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_file_name()
{
  disp_name_start();                        /* start name display */
}


/*F*****************************************************************************
* NAME: print_file_type
*-------------------------------------------------------------------------------
* PARAMS:
*
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print to lcd the current file type
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_file_type()
{
}


/*F*****************************************************************************
* NAME: print_name
*-------------------------------------------------------------------------------
* PARAMS:
*   string: pointer on char string
* return:
*   TRUE:  at the end of the string
*   FALSE: in the middle of the string
*----------------------------------------------------------------------------
* PURPOSE:
*   Print 14 characters of the file name
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
bit print_name (char pdata *string)
{
  if (string);
  return 1;
}


/*F**************************************************************************
* NAME: print_screen
*----------------------------------------------------------------------------
* PARAMS:
*   screen: string in code space to print on LCD
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print a screen string on LCD
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_screen (char code *screen)
{
  if (screen);
}


/*F**************************************************************************
* NAME: print_fatal_screen
*----------------------------------------------------------------------------
* PARAMS:
*   screen: string in code space to print on LCD
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print a screen string on LCD
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_fatal_screen (void)
{
  LED_TREEB = LED_BASS=LED_MED = 0;
  LED_VOL = 1;
}


/*F**************************************************************************
* NAME: print_string
*----------------------------------------------------------------------------
* PARAMS:
*   string: string in code space to print on LCD
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Print a string on LCD
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_string (char code *string)
{
if (string);
}


/*F****************************************************************************
* NAME: print_decim
*------------------------------------------------------------------------------
* PARAMS:
*   b:     number to print
*   space: TRUE: print ' 0', FALSE: print '00'
* return:
*------------------------------------------------------------------------------
* PURPOSE:
*   Print a 2 digits number on LCD '00-99' or ' 0-99'
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
void print_decim (Byte b, bit space)
{
if (b && space);
}