void Rtc_Pcf8563::getDate()
{
/* set the start byte of the date data */
Wire.beginTransmission(Rtcc_Addr);
Wire.send(RTCC_DAY_ADDR);
Wire.endTransmission();
Wire.requestFrom(Rtcc_Addr, 4); //request 4 bytes
//0x3f = 0b00111111
day = bcdToDec(Wire.receive() & 0x3f);
//0x07 = 0b00000111
weekday = bcdToDec(Wire.receive() & 0x07);
//get raw month data byte and set month and century with it.
month = Wire.receive();
if (month & RTCC_CENTURY_MASK) {
century = 1;
}
else {
century = 0;
}
//0x1f = 0b00011111
month = month & 0x1f;
month = bcdToDec(month);
year = bcdToDec(Wire.receive());
}
/**
* Get alarm, set values to RTCC_NO_ALARM (99) if alarm flag is not set
*/
void Rtc_Pcf8563::getAlarm()
{
/* set the start byte of the alarm data */
Wire.beginTransmission(Rtcc_Addr);
Wire.send(RTCC_ALRM_MIN_ADDR);
Wire.endTransmission();
Wire.requestFrom(Rtcc_Addr, 4); //request 4 bytes
alarm_minute = Wire.read();
if(B10000000 & alarm_minute){
alarm_minute = RTCC_NO_ALARM;
} else {
alarm_minute = bcdToDec(alarm_minute & B01111111);
}
alarm_hour = Wire.read();
if(B10000000 & alarm_hour){
alarm_hour = RTCC_NO_ALARM;
} else {
alarm_hour = bcdToDec(alarm_hour & B00111111);
}
alarm_day = Wire.read();
if(B10000000 & alarm_day){
alarm_day = RTCC_NO_ALARM;
} else {
alarm_day = bcdToDec(alarm_day & B00111111);
}
alarm_weekday = Wire.read();
if(B10000000 & alarm_weekday){
alarm_weekday = RTCC_NO_ALARM;
} else {
alarm_weekday = bcdToDec(alarm_weekday & B00000111);
}
}
int RealTimeClockDS1307::getHours()
{
if(is12hour()) {
//do not include bit 5, the am/pm indicator
return bcdToDec(_reg2_hour & 0x1f);
}
//bits 4-5 are tens of hours
return bcdToDec(_reg2_hour & 0x3f);
}
void Time_Adj_1224hrs(BOOL h12)
{
BYTE hours, bcd10, bcd;
Time_Pause(TRUE);
Rtc_ReadFromRtc();
if(datetime._02h.bits_24hrs._1224hr != h12)
{
if(h12)
{
// Convert from 24h to 12h
bcdToDec(datetime._02h.bits_24hrs.hours10, datetime._02h.bits_24hrs.hours, &hours);
if(hours >= 12)
{
datetime._02h.bits_ampm.ampm = 1;
if(hours > 12) hours -= 12;
}
else
{
datetime._02h.bits_ampm.ampm = 0;
if(hours == 0) hours = 12;
}
decToBcd(&bcd10 , &bcd, hours);
datetime._02h.bits_ampm.hours10 = bcd10;
datetime._02h.bits_ampm.hours = bcd;
}
else
{
// Convert from 12h to 24h
bcdToDec(datetime._02h.bits_ampm.hours10, datetime._02h.bits_ampm.hours, &hours);
if(datetime._02h.bits_ampm.ampm == 1 && hours != 12)
{
hours += 12;
}
else if(datetime._02h.bits_ampm.ampm == 0 && hours == 12)
{
hours = 0;
}
decToBcd(&bcd10 , &bcd, hours);
datetime._02h.bits_24hrs.hours10 = bcd10;
datetime._02h.bits_24hrs.hours = bcd;
}
}
datetime._02h.bits_24hrs._1224hr = h12;
Rtc_WriteToRtc();
Time_Pause(FALSE);
}
void Rtc_Pcf8563::getTime()
{
/* set the start byte , get the 2 status bytes */
Wire.beginTransmission(Rtcc_Addr);
Wire.send(RTCC_STAT1_ADDR);
Wire.endTransmission();
Wire.requestFrom(Rtcc_Addr, 5); //request 5 bytes
status1 = Wire.receive();
status2 = Wire.receive();
//0x7f = 0b01111111
sec = bcdToDec(Wire.receive() & 0x7f);
minute = bcdToDec(Wire.receive() & 0x7f);
//0x3f = 0b00111111
hour = bcdToDec(Wire.receive() & 0x3f);
}
bool RTCx::readTimeSaver(struct tm *tm, uint8_t sz) const
{
Wire.requestFrom(address, sz);
tm->tm_sec = 0;
tm->tm_min = bcdToDec(Wire.read() & 0x7f);
tm->tm_hour = bcdToDec(Wire.read() & 0x3f);
tm->tm_wday = 0;
tm->tm_mday = bcdToDec(Wire.read() & 0x3f);
uint8_t wdayMonth = Wire.read();
tm->tm_mon = bcdToDec(wdayMonth & 0x1f) - 1; // Clock uses [1..12]
tm->tm_wday = (wdayMonth >> 5) - 1; // Clock uses [1..7]
tm->tm_year = (RTCX_EPOCH - 1900); // not stored
tm->tm_yday = -1;
Wire.endTransmission();
return true;
}
void Time_Adj_S(BOOL direction)
{
BYTE seconds, bcd10, bcd;
Time_Pause(TRUE);
Rtc_ReadFromRtc();
bcdToDec(datetime._00h.bits.seconds10, datetime._00h.bits.seconds, &seconds);
if(direction == TIME_UP)
{
if(seconds < 59) seconds++;
else seconds = 0;
}
else
{
if(seconds > 0) seconds--;
else seconds = 59;
}
decToBcd(&bcd10, &bcd, seconds);
datetime._00h.bits.seconds = bcd;
datetime._00h.bits.seconds10 = bcd10;
Rtc_WriteToRtc();
Time_Pause(FALSE);
}
void Time_Adj_Mi(BOOL direction)
{
BYTE minutes, bcd10, bcd;
Time_Pause(TRUE);
Rtc_ReadFromRtc();
bcdToDec(datetime._01h.bits.minutes10, datetime._01h.bits.minutes, &minutes);
if(direction == TIME_UP)
{
if(minutes < 59) minutes++;
else minutes = 0;
}
else
{
if(minutes > 0) minutes--;
else minutes = 59;
}
decToBcd(&bcd10, &bcd, minutes);
datetime._01h.bits.minutes = bcd;
datetime._01h.bits.minutes10 = bcd10;
Rtc_WriteToRtc();
Time_Pause(FALSE);
}
bool Nanoshield_RTC::writeYear(int year)
{
int mon;
// Address register containing the months and century
Wire.beginTransmission(i2cAddr);
Wire.write(monthAddr);
if (Wire.endTransmission()) return false;
// Read month register
if (Wire.requestFrom((int)i2cAddr, 1) != 1) return false;
mon = bcdToDec(Wire.read() & 0x1F);
// Rewrite month along with century bit
Wire.beginTransmission(i2cAddr);
Wire.write(monthAddr); // Start address
if (year / 100 == 19) { // Set century bit to zero if 20th century
Wire.write(decToBcd(mon) & 0x7F); // Month (1-12, century bit (bit 7) = 0)
} else {
Wire.write(decToBcd(mon) | 0x80); // Month (1-12, century bit (bit 7) = 1)
}
if (Wire.endTransmission() != 0) return false;
// Write year
Wire.beginTransmission(i2cAddr);
Wire.write(yearAddr); // Start address
Wire.write(decToBcd(year % 100)); // Year (00-99)
return Wire.endTransmission() == 0;
}
void printDate(){
// Reset the register pointer
Wire.beginTransmission(DS1307_ADDRESS);
Wire.send(0);
Wire.endTransmission();
Wire.requestFrom(DS1307_ADDRESS, 7);
int second = bcdToDec(Wire.receive());
int minute = bcdToDec(Wire.receive());
int hour = bcdToDec(Wire.receive() & 0b111111); //24 hour time
int weekDay = bcdToDec(Wire.receive()); //0-6 -> sunday - Saturday
int monthDay = bcdToDec(Wire.receive());
int month = bcdToDec(Wire.receive());
int year = bcdToDec(Wire.receive());
//print the date EG 3/1/11 23:59:59
Serial.print(month);
Serial.print("/");
Serial.print(monthDay);
Serial.print("/");
Serial.print(year);
Serial.print(" ");
Serial.print(hour);
Serial.print(":");
Serial.print(minute);
Serial.print(":");
Serial.println(second);
}
// Gets the date and time from the ds1307
void getDateDs1307(byte *second,
byte *minute,
byte *hour,
byte *dayOfWeek,
byte *dayOfMonth,
byte *month,
byte *year)
{
// Reset the register pointer
Wire.beginTransmission(DS1307_I2C_ADDRESS);
Wire.send(0);
Wire.endTransmission();
Wire.requestFrom(DS1307_I2C_ADDRESS, 7);
// A few of these need masks because certain bits are control bits
*second = bcdToDec(Wire.receive() & 0x7f);
*minute = bcdToDec(Wire.receive());
*hour = bcdToDec(Wire.receive() & 0x3f); // Need to change this if 12 hour am/pm
*dayOfWeek = bcdToDec(Wire.receive());
*dayOfMonth = bcdToDec(Wire.receive());
*month = bcdToDec(Wire.receive());
*year = bcdToDec(Wire.receive());
}
/**
* Die Uhrzeit auslesen und in den Variablen ablegen
*/
void MyRTC::readTime() {
byte returnStatus, count, result, retries = 0;
do {
// Reset the register pointer
Wire.beginTransmission(_address);
Wire.write((uint8_t) 0x00);
result = Wire.endTransmission(false); // false, damit der Bus nicht freigegeben wird und eventuell andere dazwischen kommen (in Multi-MCU-Umgebungen)
DEBUG_PRINT(F("Wire.endTransmission(false) = "));
DEBUG_PRINTLN(result);
count = Wire.requestFrom(_address, 7);
DEBUG_PRINT(F("Wire.requestFrom(_address, 7) = "));
DEBUG_PRINTLN(count);
DEBUG_FLUSH();
if (count == 7) {
// Success
// A few of these need masks because certain bits are control bits
_seconds = bcdToDec(Wire.read() & 0x7f);
_minutes = bcdToDec(Wire.read());
_hours = bcdToDec(Wire.read() & 0x3f); // Need to change this if 12 hour am/pm
_dayOfWeek = bcdToDec(Wire.read());
_date = bcdToDec(Wire.read());
_month = bcdToDec(Wire.read());
_year = bcdToDec(Wire.read());
} else {
// Fail
// keine 7 Byte zurueck gekommen? Buffer verwerfen...
for (int i = 0; i < count; i++) {
Wire.read();
}
retries++;
}
result = Wire.endTransmission(true); // true, jetzt den Bus freigeben.
DEBUG_PRINT(F("Wire.endTransmission(true) = "));
DEBUG_PRINTLN(result);
} while ((count != 7) && (retries < 8));
if (retries == 8) {
// Es konnte nichts gelesen werden
_seconds = 11;
_minutes = 11;
_hours = 11;
_dayOfWeek = 1;
_date = 1;
_month = 1;
_year = 2014;
}
DEBUG_PRINT(F("Time: "));
DEBUG_PRINT(getHours());
DEBUG_PRINT(F(":"));
DEBUG_PRINT(getMinutes());
DEBUG_PRINT(F(":"));
DEBUG_PRINTLN(getSeconds());
DEBUG_FLUSH();
}
DateTime I2CFlexel::getTimeAndDate()
{
byte timeAndDate[7];
getTimeAndDate(timeAndDate);
return DateTime(
bcdToDec(timeAndDate[0]), bcdToDec(timeAndDate[1]), bcdToDec(timeAndDate[2]), bcdToDec(timeAndDate[3]),
bcdToDec(timeAndDate[4]), bcdToDec(timeAndDate[5]), bcdToDec(timeAndDate[6])
);
}
/*Function: Read time and date from RTC */
void rtc_ds1307_get_time(struct __time * time_get)
{
uint8 dta[1] = {0x00};
suli_i2c_write(__I2C_Device_RTC, DS1307_I2C_ADDRESS, dta, 1);
suli_i2c_read(__I2C_Device_RTC, DS1307_I2C_ADDRESS, time_get->data, 7);
time_get->data[0] &= 0x7f;
time_get->data[2] &= 0x3f;
for(int i=0; i<7; i++)
{
time_get->data[i] = bcdToDec(time_get->data[i]);
}
}
void Time_Adj_Y(BOOL direction)
{
BYTE date, month, year, bcd10, bcd;
Time_Pause(TRUE);
Rtc_ReadFromRtc();
bcdToDec(datetime._04h.bits.date10, datetime._04h.bits.date, &date);
bcdToDec(datetime._05h.bits.month10, datetime._05h.bits.month, &month);
bcdToDec(datetime._06h.bits.year10, datetime._06h.bits.year, &year);
bcd10 = datetime._06h.bits.year10;
bcd = datetime._06h.bits.year;
if(direction == TIME_UP)
{
year++;
if(isValidDate(date, month, year))
{
decToBcd(&bcd10, &bcd, year);
}
}
else
{
year--;
if(isValidDate(date, month, year))
{
decToBcd(&bcd10, &bcd, year);
}
}
datetime._06h.bits.year10 = bcd10;
datetime._06h.bits.year = bcd;
Rtc_WriteToRtc();
Time_Pause(FALSE);
}
/**
* Die Uhrzeit auslesen und in den Variablen ablegen
*/
void DS1307::readTimeOnly() {
// Reset the register pointer
Wire.beginTransmission(_address);
Wire.send(0x00);
Wire.endTransmission();
// Statt 7 nur einen Teil ermitteln, Datum wird aktuell nicht benötigt
Wire.requestFrom(_address, 3);
// A few of these need masks because certain bits are control bits
_seconds = bcdToDec(Wire.receive() & 0x7f);
_minutes = bcdToDec(Wire.receive());
_hours = bcdToDec(Wire.receive() & 0x3f); // Need to change this if 12 hour am/pm
_dayOfWeek = 0;
_date = 0;
_month = 0;
_year = 0;
// Wird aktuell nicht mehr benötigt
// _dayOfWeek = bcdToDec(Wire.receive());
// _date = bcdToDec(Wire.receive());
// _month = bcdToDec(Wire.receive());
// _year = bcdToDec(Wire.receive());
}
void Lamp::setDateTime(){
byte second = 0;
byte minute = tMinute;
byte hour = tHour;
byte weekDay = tDay;
byte monthDay = tDate;
byte month = tMonth;
byte year = tYear;
Wire.beginTransmission(DS1307_ADDRESS);
Wire.write(0x00); //stop Oscillator
Wire.write(decToBcd(second));
Wire.write(decToBcd(minute));
Wire.write(decToBcd(hour));
Wire.write(decToBcd(weekDay-1));
Wire.write(decToBcd(monthDay));
Wire.write(decToBcd(month));
Wire.write(decToBcd(year));
Wire.write(0x00); //start
Wire.endTransmission();
Wire.beginTransmission(DS1307_ADDRESS);
Wire.write(0x00);
Wire.endTransmission();
Wire.requestFrom(DS1307_ADDRESS, 7);
tSecond = bcdToDec(Wire.read());
tMinute = bcdToDec(Wire.read());
tHour = bcdToDec(Wire.read() & 0b111111); //24 hour time
tDay = bcdToDec(Wire.read()); //0-6 -> sunday - Saturday
tDate = bcdToDec(Wire.read());
tMonth =bcdToDec(Wire.read());
tYear =bcdToDec(Wire.read());
tHour12 = tHour;
if (tHour > 12) tHour12 = tHour-12;
//print the date EG 3/1/11 23:59:59
}
bool ArduRCT_RealTimeClock::_getMCP7941xTime() {
// initialize the RTC
if (_mcp7941xStatus == RTC_MCP7941X_NOT_STARTED) {
Wire.begin();
// enable clock
Wire.beginTransmission(RTC_MCP7941X_ADDRESS);
Wire.write(RTC_MCP7941X_SECONDS);
Wire.endTransmission();
Wire.requestFrom(RTC_MCP7941X_ADDRESS, 1);
uint8_t seconds = Wire.read();
if ((seconds & 0x80) == 0) {
Wire.beginTransmission(RTC_MCP7941X_ADDRESS);
Wire.write(RTC_MCP7941X_SECONDS);
Wire.write(seconds | 0x80); // set second and enable clock (10000000)
Wire.endTransmission();
}
// enable battery: set 1 in bit 3 of DOW
Wire.beginTransmission(RTC_MCP7941X_ADDRESS);
Wire.write(RTC_MCP7941X_DOW);
Wire.endTransmission();
Wire.requestFrom(RTC_MCP7941X_ADDRESS, 1);
uint8_t dow = Wire.read() & 0x0F;
if ((dow & 0x08) == 0) {
Wire.beginTransmission(RTC_MCP7941X_ADDRESS);
Wire.write(RTC_MCP7941X_DOW);
Wire.write(dow | 0x08); // set dow and enable battery (00001000)
Wire.endTransmission();
}
_mcp7941xStatus = RTC_MCP7941X_STARTED;
}
// get the seconds from the RTC chip
Wire.beginTransmission(RTC_MCP7941X_ADDRESS);
Wire.write(RTC_MCP7941X_SECONDS);
Wire.endTransmission();
Wire.requestFrom(RTC_MCP7941X_ADDRESS, 1);
uint8_t second = _second;
_second = bcdToDec(Wire.read() & 0x7F); // 01111111
if (_second == second) return false;
// get the rest of the values if required
Wire.requestFrom(RTC_MCP7941X_ADDRESS, 6);
_minute = bcdToDec(Wire.read() & 0x7F); // 01111111
_hour = bcdToDec(Wire.read() & 0x3F); // 00111111
_dayOfWeek = bcdToDec(Wire.read() & 0x07) - 1; // 01111111
_day = bcdToDec(Wire.read() & 0x3F); // 00111111
_month = bcdToDec(Wire.read() & 0x1F); // 00011111
_year = RTC_MCP7941X_YEAR_OFFSET + bcdToDec(Wire.read()); // 11111111
return true;
}
/* Read a time from the clock. The same function is also used to read
* the alarms as the register layout is essentially identical but with
* week day and year omitted.
*/
bool RTCx::readClock(struct tm *tm, timeFunc_t func) const
{
// Find which register to read from
uint8_t sz = 0;
uint8_t reg = getRegister(func, sz);
if (sz == 0)
return false; // not supported
if (device == MCP7941x &&
(func == TIME_POWER_FAILED || func == TIME_POWER_RESTORED))
return readTimeSaver(tm, sz);
while (true) {
// Reset the register pointer
Wire.beginTransmission(address);
Wire.write(reg);
Wire.endTransmission();
Wire.requestFrom(address, sz);
tm->tm_sec = bcdToDec(Wire.read() & 0x7f);
tm->tm_min = bcdToDec(Wire.read() & 0x7f);
uint8_t h = Wire.read();
if (h & 0x40) {
// Twelve hour mode
tm->tm_hour = bcdToDec(h & 0x1f);
if (h & 0x20)
tm->tm_hour += 12; // Seems notation for AM/PM is user-defined
}
else
tm->tm_hour = bcdToDec(h & 0x3f);
tm->tm_wday = (Wire.read() & 0x03) - 1; // Clock uses [1..7]
tm->tm_mday = bcdToDec(Wire.read() & 0x3f);
tm->tm_mon = bcdToDec(Wire.read() & 0x1f) - 1; // Clock uses [1..12]
if (sz == 7)
tm->tm_year = bcdToDec(Wire.read()) + 100; // Assume 21st century
else
tm->tm_year = (RTCX_EPOCH - 1900);
tm->tm_yday = -1;
Wire.endTransmission();
if ((func != TIME) || (tm->tm_sec == bcdToDec(readData(0) & 0x7f)))
break;
}
return true;
}
void readDS3231time(byte *second, byte *minute, byte *hour, byte *dayOfWeek, byte *dayOfMonth, byte *month, byte *year){
Wire.beginTransmission(DS3231_I2C_ADDRESS);
Wire.write(0); // set DS3231 register pointer to 00h
Wire.endTransmission();
Wire.requestFrom(DS3231_I2C_ADDRESS, 7);
// request seven bytes of data from DS3231 starting from register 00h
*second = bcdToDec(Wire.read() & 0x7f);
*minute = bcdToDec(Wire.read());
*hour = bcdToDec(Wire.read() & 0x3f);
*dayOfWeek = bcdToDec(Wire.read());
*dayOfMonth = bcdToDec(Wire.read());
*month = bcdToDec(Wire.read());
*year = bcdToDec(Wire.read());
}
void Lamp::getDate(){
Wire.beginTransmission(DS1307_ADDRESS);
Wire.write(0x00);
Wire.endTransmission();
Wire.requestFrom(DS1307_ADDRESS, 7);
byte second = 45; //0-59
byte minute = 40; //0-59
byte hour = 0; //0-23
byte weekDay = 2; //1-7
byte monthDay = 1; //1-31
byte month = 3; //1-12
byte year = 11; //0-99
tSecond = bcdToDec(Wire.read());
tMinute = bcdToDec(Wire.read());
tHour = bcdToDec(Wire.read() & 0b111111); //24 hour time
tDay = bcdToDec(Wire.read()); //0-6 -> sunday - Saturday
tDate = bcdToDec(Wire.read());
tMonth =bcdToDec(Wire.read());
tYear =bcdToDec(Wire.read());
tHour12 = tHour;
if (tHour > 12) tHour12 = tHour-12;
if (!_alarming)
{
bool isAM =false;
if (tHour<12) isAM = true;
if (tAlarmStarted != tMinute)
{
tAlarmStarted = 128;
}
if (getAlarmOn()==true && (isAM == getAlarmAM()) && getAlarmHour() == tHour12 && getAlarmMin() == tMinute && tMinute != tAlarmStarted )
{
_alarming = true;
tAlarmStarted=tMinute;
}
}
}
/*Function: Read time and date from RTC */
void RTC::read() {
// Reset the register pointer
Wire.beginTransmission(DS1307_I2C_ADDRESS);
Wire.write((uint8_t)0x00);
Wire.endTransmission();
Wire.requestFrom(DS1307_I2C_ADDRESS, 7);
// A few of these need masks because certain bits are control bits
_second = bcdToDec(Wire.read() & 0x7f);
_minute = bcdToDec(Wire.read());
// Need to change this if 12 hour am/pm
_hour = bcdToDec(Wire.read() & 0x3f);
_dayOfWeek = bcdToDec(Wire.read());
_day = bcdToDec(Wire.read());
_month = bcdToDec(Wire.read());
_year = bcdToDec(Wire.read()) + 2000;
}
/*Function: Read time and date from RTC */
void DS1307::getTime()
{
// Reset the register pointer
Wire1.beginTransmission(DS1307_I2C_ADDRESS);
Wire1.write((uint8_t)0x00);
Wire1.endTransmission();
Wire1.requestFrom(DS1307_I2C_ADDRESS, 7);
// A few of these need masks because certain bits are control bits
second = bcdToDec(Wire1.read() & 0x7f);
minute = bcdToDec(Wire1.read());
hour = bcdToDec(Wire1.read() & 0x3f);// Need to change this if 12 hour am/pm
dayOfWeek = bcdToDec(Wire1.read());
dayOfMonth = bcdToDec(Wire1.read());
month = bcdToDec(Wire1.read());
year = bcdToDec(Wire1.read());
}
// Disable the clock without changing the date/time:
void MCP7941x::disableClock()
{
// Get the current seconds value as the enable/disable bit is in the same
// byte of memory as the seconds value:
Wire.beginTransmission(MCP7941x_RTC_I2C_ADDR);
WireSend(RTC_LOCATION);
Wire.endTransmission();
Wire.requestFrom(MCP7941x_RTC_I2C_ADDR, 1);
int second = bcdToDec(WireReceive() & 0x7f); // 01111111
// Start Clock:
Wire.beginTransmission(MCP7941x_RTC_I2C_ADDR);
WireSend(RTC_LOCATION);
WireSend(decToBcd(second)); // set seconds and disable clock (01111111)
Wire.endTransmission();
}
// Enable the battery:
void MCP7941x::enableBattery()
{
// Get the current seconds value as the enable/disable bit is in the same
// byte of memory as the seconds value:
Wire.beginTransmission(MCP7941x_RTC_I2C_ADDR);
WireSend(RTC_LOCATION + 0x03);
Wire.endTransmission();
Wire.requestFrom(MCP7941x_RTC_I2C_ADDR, 1);
int day = bcdToDec(WireReceive() & 0x07); // 00000111
// Start Clock:
Wire.beginTransmission(MCP7941x_RTC_I2C_ADDR);
WireSend(RTC_LOCATION + 0x03);
WireSend(decToBcd(day) | 0x08); // set day and enable battery (00001000)
Wire.endTransmission();
}
// get the time from the rtc, populates a supplied tm struct
// returns true to indicate success
bool ICACHE_FLASH_ATTR ds1307_getTime(struct tm *time) {
int loop;
uint8 data[7];
// start register address
data[0] = DS1307_ADDR_TIME;
if (!ds1307_send(data, 1)) {
return false;
}
// read time
if (!ds1307_recv(data, 7)) {
return false;
}
// convert to unix time structure
time->tm_sec = bcdToDec(data[0]);
time->tm_min = bcdToDec(data[1]);
if (data[2] & DS1307_12HOUR_FLAG) {
// 12h
time->tm_hour = bcdToDec(data[2] & DS1307_12HOUR_MASK);
// pm?
if (data[2] & DS1307_PM_FLAG) time->tm_hour += 12;
} else {
// 24h
time->tm_hour = bcdToDec(data[2]);
}
time->tm_wday = bcdToDec(data[3]) - 1;
time->tm_mday = bcdToDec(data[4]);
time->tm_mon = bcdToDec(data[5]) - 1;
time->tm_year = bcdToDec(data[6]) + 100;
time->tm_isdst = 0;
// apply a time zone (if you are not using localtime on the rtc or you want to check/apply DST)
//applyTZ(time);
return true;
}
void DS1307::get_time() {
LOG << "get_time - Entered";
char buffer[10];
buffer[0] = (char)0;
i2c_bus->write_bytes(buffer, 1);
int bytes_read = i2c_bus->read_bytes(7, buffer);
assert(bytes_read == 7);
LOG << dec << "0 - SECOND - " << int(bcdToDec(buffer[0] & 0x7f));
LOG << dec << "1 - MINUTE - " << int(bcdToDec(buffer[1]));
LOG << dec << "2 - HOUR - " << int(bcdToDec(buffer[2] & 0x3f)) << " " << int(buffer[2]); // UTC 8 hours behind.
LOG << dec << "3 - DayOfWeek - " << int(bcdToDec(buffer[3]));
LOG << dec << "4 - DayOfMonth - " << int(bcdToDec(buffer[4])) << " " << buffer[4];
LOG << dec << "5 - Month - " << int(bcdToDec(buffer[5]));
LOG << dec << "6 - Year - " << int(bcdToDec(buffer[6]));
}
byte timer1RefreshTimeCallBack(unsigned char result) {
switch(result) {
case TW_MR_DATA_NACK : //Результат получен
zs042_seconds = bcdToDec(commandI2CData.reciveBuf[0]);
current_time.minut = bcdToDec(commandI2CData.reciveBuf[1]);
current_time.hour = bcdToDec(commandI2CData.reciveBuf[2]);
current_time.dayOfWeek = bcdToDec(commandI2CData.reciveBuf[3]);
current_time.dayOfMonth = bcdToDec(commandI2CData.reciveBuf[4]);
current_time.month = bcdToDec(commandI2CData.reciveBuf[5]);
break;
default :
_log(ERR_I2C(result));
}
return 0;
}
void DS1307::loadFromRTC(){
int16_t zero=0;
int8_t oldZone;
Wire.beginTransmission(DS1307_ADDRESS);
Wire.write(zero);
Wire.endTransmission();
Wire.requestFrom(DS1307_ADDRESS, 7);
bTime.sec = bcdToDec(Wire.read());
bTime.min = bcdToDec(Wire.read());
bTime.hour = bcdToDec(Wire.read() & 0b111111);
bTime.wday = bcdToDec(Wire.read());
bTime.mday = bcdToDec(Wire.read());
bTime.mon = bcdToDec(Wire.read());
bTime.year = 2000+bcdToDec(Wire.read());
oldZone=bTime.zone;
bTime.zone = 0; // RTC always UTC
changeZone(oldZone); // convert to local time
}
RTCTime RTCClass::time()
{
RTCTime tm;
// Reset the register pointer
Wire.beginTransmission(DS1307_I2C_ADDRESS);
Wire.send(0);
Wire.endTransmission();
Wire.requestFrom(DS1307_I2C_ADDRESS, 7);
// A few of these need masks because certain bits are control bits
tm.second = bcdToDec(Wire.receive() & 0x7f);
tm.minute = bcdToDec(Wire.receive());
tm.hour = bcdToDec(Wire.receive() & 0x3f); // Need to change this if 12 hour am/pm
tm.dayOfWeek = bcdToDec(Wire.receive());
tm.day = bcdToDec(Wire.receive());
tm.month = bcdToDec(Wire.receive());
tm.year = bcdToDec(Wire.receive());
return tm;
}
