void rtc_get_time (void) {
twi_send_start();
twi_write_byte(RTC_ADDR & 0xFE);
twi_write_byte(RTC_SEC_OFFSET);
twi_send_start();
twi_write_byte(RTC_ADDR);
twi_read_byte(TRUE);
seconds=((twi_byte&0x7f)>>4)*10 + (twi_byte&0xf);
twi_read_byte(TRUE);
minutes=((twi_byte&0x7f)>>4)*10 + (twi_byte&0xf);
twi_read_byte(FALSE);
hours=((twi_byte&0x3f)>>4)*10 + (twi_byte&0xf);
twi_send_stop();
}
/** Zwraca wskaźnik
* @return wartość wskaźnika
*/
uint16_t log_read_pointer(void) {
uint16_t logp;
twi_send_start();
twi_write_byte(EXT_EEPROM_ADDR & 0xFE);
twi_write_byte(FIRST_WORD(LOG_CONTROL_RECORD_NUMBER) + LOG_CONTROL_POINTER_LSB);
twi_write_byte(SECOND_WORD(LOG_CONTROL_RECORD_NUMBER));
twi_send_start();
twi_write_byte(EXT_EEPROM_ADDR);
twi_read_byte(TRUE);
logp = twi_byte;
twi_read_byte(FALSE);
logp |= ((uint16_t)twi_byte) << 8;
return logp;
}
void rtc_get_date (void) {
twi_send_start();
twi_write_byte(RTC_ADDR & 0xFE);
twi_write_byte(RTC_DAY_OFFSET);
twi_send_start();
twi_write_byte(RTC_ADDR);
twi_read_byte(TRUE);
day=((twi_byte&0x3f)>>4)*10 + (twi_byte&0xf);
twi_read_byte(TRUE);
wday=twi_byte&0x07;
twi_read_byte(TRUE);
month=((twi_byte&0x1f)>>4)*10 + (twi_byte&0xf);
twi_read_byte(FALSE);
year=((twi_byte)>>4)*10 + (twi_byte&0xf);
twi_send_stop();
}
uint8_t get_io (uint8_t addr) {
twi_send_start();
twi_write_byte(addr);
twi_read_byte(FALSE);
twi_send_stop();
return twi_byte;
}
/**
* \brief Reads the series of bytes from the TWI bus
* \param package - Package information and data
* (see \ref twi_package_t)
*/
status_code_t twi_master_read(volatile void *twi,const twi_package_t *package)
{
/* Do a sanity check on the arguments. */
if ((package == NULL) || master_transfer.pkg->length == 0) {
return ERR_INVALID_ARG;
}
if (true == twi_master_busy) {
return OPERATION_IN_PROGRESS;
}
/* Initiate a transaction when the bus is ready. */
/* twi = NULL; megaRF has only one twi */
master_transfer.pkg = (twi_package_t *)package;
master_transfer.addr_count = 0;
master_transfer.data_count = 0;
twi_master_busy = true;
if (TWI_SLAVE_NO_INTERNAL_ADDRESS == master_transfer.pkg->addr_length) {
master_transfer.state = TWI_READ_DATA;
} else {
master_transfer.state = TWI_WRITE_IADDR_READ_DATA;
}
twi_send_start();
/* Wait for the transaction to complete */
while(twi_master_busy);
return twi_master_get_status();
}
void rtc_set_time (uint8_t h, uint8_t m, uint8_t s) {
twi_send_start();
twi_write_byte(RTC_ADDR & 0xFE);
twi_write_byte(RTC_SEC_OFFSET);
twi_write_byte(((s/10) << 4) | (s%10));
twi_write_byte(((m/10) << 4) | (m%10));
twi_write_byte(((h/10) << 4) | (h%10));
twi_send_stop();
}
/** Czyta wpis z loga
* @param logp wartość wskaźnika
* @param *pbuff wskaźnik do bufora, gdzie zostanie zapisany wpis
*/
void log_read_record_at_pointer(uint16_t logp,uint8_t *pbuff) {
uint8_t i;
twi_send_start();
twi_write_byte(EXT_EEPROM_ADDR & 0xFE);
twi_write_byte(FIRST_WORD(logp));
twi_write_byte(SECOND_WORD(logp));
twi_send_start();
twi_write_byte(EXT_EEPROM_ADDR);
for(i=0;i<LOG_BYTES_PER_RECORD-1;i++) { // 7 bajtów z potwierdzeniem
twi_read_byte(TRUE);
*pbuff++ = twi_byte;
}
twi_read_byte(FALSE); // 1 bajt bez potwierdzenia
*pbuff = twi_byte;
twi_send_stop();
}
/** Czyści rekord w logu
* @param logp wartość wskaźnika
*/
void log_clear_record (uint16_t logp) {
twi_send_start();
twi_write_byte(EXT_EEPROM_ADDR & 0xFE);
twi_write_byte(FIRST_WORD(logp));
twi_write_byte(SECOND_WORD(logp));
twi_write_byte(UINT8_T_DISABLED);
twi_send_stop();
_delay_ms(LOG_WRITE_DELAY);
}
void rtc_set_date (uint8_t y, uint8_t m, uint8_t d,uint8_t wd) {
twi_send_start();
twi_write_byte(RTC_ADDR & 0xFE);
twi_write_byte(RTC_DAY_OFFSET);
twi_write_byte(((d/10) << 4) | (d%10));
twi_write_byte(wd);
twi_write_byte(((m/10) << 4) | (m%10));
twi_write_byte(((y/10) << 4) | (y%10));
twi_send_stop();
}
/** Ustawia wskaźnik wpisu
* @param pointer wartość wskaźnika
*/
void log_write_pointer(uint16_t pointer) {
twi_send_start();
twi_write_byte(EXT_EEPROM_ADDR & 0xFE);
twi_write_byte(FIRST_WORD(LOG_CONTROL_RECORD_NUMBER) + LOG_CONTROL_POINTER_LSB);
twi_write_byte(SECOND_WORD(LOG_CONTROL_RECORD_NUMBER));
twi_write_byte((uint8_t)pointer);
twi_write_byte((uint8_t)(pointer >> 8));
twi_send_stop();
_delay_ms(LOG_WRITE_DELAY);
}
static void twi_master_write_done(void)
{
if (TWI_WRITE_DATA == master_transfer.state) {
twi_master_data_write();
} else if ((TWI_WRITE_IADDR_WRITE_DATA == master_transfer.state) ||
(TWI_WRITE_IADDR_READ_DATA == master_transfer.state)) {
twi_master_internal_addr_write();
} else if (TWI_READ_DATA == master_transfer.state) {
twi_send_start();
} else { /* abnormal */
twi_master_bus_reset();
master_transfer.status = ERR_PROTOCOL;
}
}
/** Wpisuje kolejne zdarzenie do logu we wskazanym przez wskaźnik miejscu.
* @param logp wskaźnik rekordu
* @param type typ wpisu
* @param val1 warotść 1
* @param val2 warotść 2
* @param val3 warotść 3
*/
void log_write_record_at_pointer(uint16_t logp,uint8_t type,uint8_t val1,uint8_t val2, uint8_t val3) {
twi_send_start();
twi_write_byte(EXT_EEPROM_ADDR & 0xFE);
twi_write_byte(FIRST_WORD(logp));
twi_write_byte(SECOND_WORD(logp));
twi_write_byte(year);
twi_write_byte( month << 4 | (type & 0x0F) );
twi_write_byte(day);
twi_write_byte(hours);
twi_write_byte(minutes);
twi_write_byte(val1);
twi_write_byte(val2);
twi_write_byte(val3);
twi_send_stop();
_delay_ms(LOG_WRITE_DELAY);
}
void set_io (uint8_t addr,uint8_t byte) {
twi_send_start();
twi_write_byte(addr);
twi_write_byte(byte);
twi_send_stop();
}
