unsigned char DayOfWeek (unsigned char aDay, unsigned char aMonth, unsigned int aYear)
(
rtc_get_date(&aDay, &aMonth, &aYear);
   unsigned d;
   int  a = (14 - aMonth) / 12;
   char y = (aYear - a);
   int  m = aMonth + 12 * a - 2;
   d = (7000 + (aDay + y + y / 4 - y / 100 + y / 400 + (31 * m) / 12))
   return (d % 7);
)

if (WeekDay == 0) { lcd_puts("Ё_."); }  // Понедельник
if (WeekDay == 1) { lcd_puts("Bї."); }  // Вторник
if (WeekDay == 2) { lcd_puts("Cp."); }  // Среда
if (WeekDay == 3) { lcd_puts("<ї."); }  // Четверг
if (WeekDay == 4) { lcd_puts("Ёї."); }  // Пятница
if (WeekDay == 5) { lcd_puts("C_."); }  // Суббота
if (WeekDay == 6) { lcd_puts("Bc."); }  // Воскресенье

//*******************************************************************
void Load_EEprom_Param(void)
{
p_tda[VOLUME_MENU_L] = eeprom_read_byte((uint8_t*)TDA_PARAM_START_ADR + VOLUME_MENU_L);
if (p_tda[VOLUME_MENU_L] > 63) p_tda[VOLUME_MENU_L] = 1;
p_tda[VOLUME_BALANS] = eeprom_read_byte((uint8_t*)TDA_PARAM_START_ADR + VOLUME_BALANS);
if (p_tda[VOLUME_BALANS] > 63) p_tda[VOLUME_BALANS] = 31;
p_tda[BASS_MENU] = eeprom_read_byte((uint8_t*)TDA_PARAM_START_ADR + BASS_MENU);
if (p_tda[BASS_MENU] > 15) p_tda[BASS_MENU] = 1;
p_tda[TREBLE_MENU] = eeprom_read_byte((uint8_t*)TDA_PARAM_START_ADR + TREBLE_MENU);
if (p_tda[TREBLE_MENU] > 15) p_tda[TREBLE_MENU] = 1;
p_tda[SELECT_MENU] = eeprom_read_byte((uint8_t*)TDA_PARAM_START_ADR + SELECT_MENU);
if (p_tda[SELECT_MENU] > 1) p_tda[SELECT_MENU] = 0;
n_select = p_tda[SELECT_MENU];
p_tda[EFFECT_MENU] = eeprom_read_byte((uint8_t*)TDA_PARAM_START_ADR + EFFECT_MENU);
if (p_tda[EFFECT_MENU] > EFFECT_MAX) p_tda[EFFECT_MENU] = 0;
n_effect = p_tda[EFFECT_MENU];
}
//*******************************************************************
void Save_EEprom_Param(void)
{
eeprom_write_byte((uint8_t*)TDA_PARAM_START_ADR + VOLUME_MENU_L,p_tda[VOLUME_MENU_L]);
eeprom_write_byte((uint8_t*)TDA_PARAM_START_ADR + VOLUME_BALANS,p_tda[VOLUME_BALANS]);
eeprom_write_byte((uint8_t*)TDA_PARAM_START_ADR + BASS_MENU + 1,p_tda[BASS_MENU]);
eeprom_write_byte((uint8_t*)TDA_PARAM_START_ADR + TREBLE_MENU + 1,p_tda[TREBLE_MENU]);
eeprom_write_byte((uint8_t*)TDA_PARAM_START_ADR + SELECT_MENU + 1,p_tda[SELECT_MENU]);
eeprom_write_byte((uint8_t*)TDA_PARAM_START_ADR + EFFECT_MENU + 1,p_tda[EFFECT_MENU]);
}
//*******************************************************************