void SleepClass::sleep(uint8_t modules,uint8_t sm){
// power_adc_disable();
cbi(ADCSRA,ADEN); // switch Analog to Digitalconverter OFF
// ACSR = (1<<ACD); //Disable the analog comparator
if(!(modules & SPI_ON)) power_spi_disable();
if(!(modules & TWI_ON)) power_twi_disable();
if(!(modules & USART0_ON)) power_usart0_disable();
if(!(modules & TIMER0_ON)) power_timer0_disable();
if(!(modules & TIMER1_ON)) power_timer1_disable();
if(!(modules & TIMER2_ON)) power_timer2_disable();
set_sleep_mode(sm);
cli();
do{
sleep_enable();
#if defined __AVR_ATmega328P__
sleep_bod_disable();
#endif
sei();
sleep_cpu(); // System sleeps here
sleep_disable(); // System continues execution here when an interrupt woke up the divice
} while(0);
sei();
power_all_enable();
sbi(ADCSRA,ADEN); // switch Analog to Digitalconverter ON
}
void powermgmt() //Code to turn off periphery and define the type of sleep mode
{
set_sleep_mode(SLEEP_MODE_ADC); //Sleep mode is ADC Noise Reduction
power_spi_disable();
power_timer0_disable();
power_timer1_disable();
power_twi_disable();
power_usart0_disable();
}
void Arduboy::saveMuchPower() {
power_adc_disable();
power_usart0_disable();
power_twi_disable();
// timer 0 is for millis()
// timers 1 and 3 are for music and sounds
power_timer2_disable();
//power_usart1_disable();
// we need USB, for now (to allow triggered reboots to reprogram)
// power_usb_disable()
}
/*function to turn off all periferlas of the radian as well as to send uC into low power mode
in the event of a low battery condition
*/
void Radian_power_saver::EnterDeepSleepMode(){
POWER_OFF;
if(DEBUG) Serial.println("Entering Deep Sleep Mode");
//Disable ADC and internal Vref
digitalWrite(BOOST_EN, LOW);
POWER_OFF;
ADMUX &= ~( (1<<REFS1) | (1<<REFS0) );
ADCSRA &= ~( (1<<ADEN) );
//Disable AnalogComparator
ACSR |= (1<<ACD);
DIDR0 = 0xFF;
// DIDR1 = 0xFF;
DIDR2 = 0xFF;
//disable watchdog timer
cli();
wdt_reset();
// Clear WDRF in MCUSR
MCUSR &= ~(1<<WDRF);
MCUCR |= (1<<JTD);//disable on chip debug system by writing 1 to JTD bit in MCUCR
// Write logical one to WDCE and WDE
// Keep old prescaler setting to prevent unintentional time-out
WDTCSR |= (1<<WDCE) | (1<<WDE);
// Turn off WDT
WDTCSR = 0x00;
//disable port pins by writing to digital input disable register DIDR1
//disable USB
PRR0 = 0xFF; //turn off all periferals in the power reduction registers
PRR1 = 0xFF;
wdt_disable();
//bod_disable();
power_usart0_disable();
power_usart1_disable();
power_spi_disable();
power_adc_disable();
power_all_disable();
POWER_OFF;
cli(); //disable all interrupts
SMCR = B00000101; //enable sleep mode (bit0 set) and set to POWER DOWN mode (lowest consumption)
sleep_mode(); //go into sleep
}
static void init()
{
// OSCCAL = 71;
clock_prescale_set(CPU_DIV);
// power_twi_disable();
// power_usart0_disable();
// power_timer0_disable();
// power_timer1_disable();
// power_timer2_disable();
// power_adc_disable();
#if !UART_ENABLE
power_usart0_disable();
#endif
// Pull-up on unused pins
pinPullup(D0, PULLUP_ENABLE);
pinPullup(D1, PULLUP_ENABLE);
pinPullup(D3, PULLUP_ENABLE);
pinPullup(D4, PULLUP_ENABLE);
pinPullup(B7, PULLUP_ENABLE);
#if PIN_DEBUG != PIN_DEBUG_NONE
pinMode(PIN_DEBUG_PIN, OUTPUT);
#endif
// Pin change interrupt on USB power sense pin
PCICR |= _BV(PCIE0);
PCMSK0 |= _BV(PCINT6);
// Everything else
uart_init();
spi_init();
i2c_init();
watchconfig_init();
led_init();
buzzer_init();
battery_init();
ds3231_init();
buttons_init();
millis_init();
pwrmgr_init();
time_init();
alarm_init();
oled_init();
}
/*********************************************************************************************************
** Function name: pwrDown
** Descriptions: pwrDown
*********************************************************************************************************/
void xadow::pwrDown(unsigned long tSleep)
{
#if defined(__AVR_ATmega32U4__)
power_adc_disable();
power_usart0_disable();
power_spi_disable();
power_twi_disable();
power_timer1_disable();
power_timer2_disable();
power_timer3_disable();
power_usart1_disable();
power_usb_disable();
#endif
sleep.pwrDownMode(); //set sleep mode
sleep.sleepDelay(tSleep); //sleep for: sleepTime
}
//---------------------------------------------------------------------------
void SysInit(void)
{
power_timer2_disable();
power_adc_disable();
power_twi_disable();
power_usart0_disable();
power_usart1_disable();
OledInit();
FrameInit();
SndInit();
EepInit();
KeyInit();
MathInit();
RndInit();
DebugInit();
}
//
// lowPowerOperation() - configures the arduino to go into the lowest power mode available
// given the ChapR requirements
//
void lowPowerOperation()
{
power_all_enable(); // turn everything on at first
ADCSRA &= ~(1<<ADEN); //Disable ADC
ACSR = (1<<ACD); //Disable the analog comparator
power_adc_disable(); // ADC disabled
power_twi_disable(); // IC2/TWI disabled
power_spi_disable(); // SPI disabled
// power_timer0_disable(); // affects delay/milli
power_timer1_disable(); // affects servos
power_timer2_disable(); // affects tones (this is turned on/off in sound routines too)
power_usart0_disable(); // disables communication via onboard USART (turned on in pairing mode)
// at this point, we've left the USART on as well as timer 0 (for delay/millis)
}
// disable usart during sleep
void usart_sleep(void) {
// diable usart: rxd and txd are clamped to ground
power_usart0_disable();
}
void Low_Power::idle(Period_t period, ADC_t adc, Timer5_t timer5,
Timer4_t timer4, Timer3_t timer3, Timer2_t timer2,
Timer1_t timer1, Timer0_t timer0, SPI_t spi,
USART3_t usart3, USART2_t usart2, USART1_t usart1,
USART0_t usart0, TWI_t twi)
{
// Temporary clock source variable
unsigned char clockSource = 0;
if (timer2 == TIMER2_OFF)
{
if (TCCR2B & CS22) clockSource |= (1 << CS22);
if (TCCR2B & CS21) clockSource |= (1 << CS21);
if (TCCR2B & CS20) clockSource |= (1 << CS20);
// Remove the clock source to shutdown Timer2
TCCR2B &= ~(1 << CS22);
TCCR2B &= ~(1 << CS21);
TCCR2B &= ~(1 << CS20);
power_timer2_disable();
}
if (adc == ADC_OFF)
{
ADCSRA &= ~(1 << ADEN);
power_adc_disable();
}
if (timer5 == TIMER5_OFF) power_timer5_disable();
if (timer4 == TIMER4_OFF) power_timer4_disable();
if (timer3 == TIMER3_OFF) power_timer3_disable();
if (timer1 == TIMER1_OFF) power_timer1_disable();
if (timer0 == TIMER0_OFF) power_timer0_disable();
if (spi == SPI_OFF) power_spi_disable();
if (usart3 == USART3_OFF) power_usart3_disable();
if (usart2 == USART2_OFF) power_usart2_disable();
if (usart1 == USART1_OFF) power_usart1_disable();
if (usart0 == USART0_OFF) power_usart0_disable();
if (twi == TWI_OFF) power_twi_disable();
if (period != SLEEP_FOREVER)
{
wdt_enable(period);
WDTCSR |= (1 << WDIE);
}
lowPowerBodOn(SLEEP_MODE_IDLE);
if (adc == ADC_OFF)
{
power_adc_enable();
ADCSRA |= (1 << ADEN);
}
if (timer2 == TIMER2_OFF)
{
if (clockSource & CS22) TCCR2B |= (1 << CS22);
if (clockSource & CS21) TCCR2B |= (1 << CS21);
if (clockSource & CS20) TCCR2B |= (1 << CS20);
power_timer2_enable();
}
if (timer5 == TIMER5_OFF) power_timer5_enable();
if (timer4 == TIMER4_OFF) power_timer4_enable();
if (timer3 == TIMER3_OFF) power_timer3_enable();
if (timer1 == TIMER1_OFF) power_timer1_enable();
if (timer0 == TIMER0_OFF) power_timer0_enable();
if (spi == SPI_OFF) power_spi_enable();
if (usart3 == USART3_OFF) power_usart3_enable();
if (usart2 == USART2_OFF) power_usart2_enable();
if (usart1 == USART1_OFF) power_usart1_enable();
if (usart0 == USART0_OFF) power_usart0_enable();
if (twi == TWI_OFF) power_twi_enable();
}
/*******************************************************************************
* Name: idle
* Description: Putting microcontroller into idle state. Please make sure you
* understand the implication and result of disabling module.
*
* Argument Description
* ========= ===========
* 1. period Duration of low power mode. Use SLEEP_FOREVER to use other wake
* up resource:
* (a) SLEEP_15MS - 15 ms sleep
* (b) SLEEP_30MS - 30 ms sleep
* (c) SLEEP_60MS - 60 ms sleep
* (d) SLEEP_120MS - 120 ms sleep
* (e) SLEEP_250MS - 250 ms sleep
* (f) SLEEP_500MS - 500 ms sleep
* (g) SLEEP_1S - 1 s sleep
* (h) SLEEP_2S - 2 s sleep
* (i) SLEEP_4S - 4 s sleep
* (j) SLEEP_8S - 8 s sleep
* (k) SLEEP_FOREVER - Sleep without waking up through WDT
*
* 2. adc ADC module disable control:
* (a) ADC_OFF - Turn off ADC module
* (b) ADC_ON - Leave ADC module in its default state
*
* 3. timer2 Timer 2 module disable control:
* (a) TIMER2_OFF - Turn off Timer 2 module
* (b) TIMER2_ON - Leave Timer 2 module in its default state
*
* 4. timer1 Timer 1 module disable control:
* (a) TIMER1_OFF - Turn off Timer 1 module
* (b) TIMER1_ON - Leave Timer 1 module in its default state
*
* 5. timer0 Timer 0 module disable control:
* (a) TIMER0_OFF - Turn off Timer 0 module
* (b) TIMER0_ON - Leave Timer 0 module in its default state
*
* 6. spi SPI module disable control:
* (a) ADC_OFF - Turn off ADC module
* (b) ADC_ON - Leave ADC module in its default state
*
* 7. usart0 USART0 module disable control:
* (a) USART0_OFF - Turn off USART0 module
* (b) USART0_ON - Leave USART0 module in its default state
*
* 8. twi TWI module disable control:
* (a) TWI_OFF - Turn off TWI module
* (b) TWI_ON - Leave TWI module in its default state
*
*******************************************************************************/
void LowPowerClass::idle(period_t period, adc_t adc, timer2_t timer2,
timer1_t timer1, timer0_t timer0,
spi_t spi, usart0_t usart0, twi_t twi)
{
// Temporary clock source variable
unsigned char clockSource = 0;
if (timer2 == TIMER2_OFF)
{
if (TCCR2B & CS22) clockSource |= (1 << CS22);
if (TCCR2B & CS21) clockSource |= (1 << CS21);
if (TCCR2B & CS20) clockSource |= (1 << CS20);
// Remove the clock source to shutdown Timer2
TCCR2B &= ~(1 << CS22);
TCCR2B &= ~(1 << CS21);
TCCR2B &= ~(1 << CS20);
power_timer2_disable();
}
if (adc == ADC_OFF)
{
ADCSRA &= ~(1 << ADEN);
power_adc_disable();
}
if (timer1 == TIMER1_OFF) power_timer1_disable();
if (timer0 == TIMER0_OFF) power_timer0_disable();
if (spi == SPI_OFF) power_spi_disable();
if (usart0 == USART0_OFF) power_usart0_disable();
if (twi == TWI_OFF) power_twi_disable();
if (period != SLEEP_FOREVER)
{
wdt_enable(period);
WDTCSR |= (1 << WDIE);
}
lowPowerBodOn(SLEEP_MODE_IDLE);
if (adc == ADC_OFF)
{
power_adc_enable();
ADCSRA |= (1 << ADEN);
}
if (timer2 == TIMER2_OFF)
{
if (clockSource & CS22) TCCR2B |= (1 << CS22);
if (clockSource & CS21) TCCR2B |= (1 << CS21);
if (clockSource & CS20) TCCR2B |= (1 << CS20);
power_timer2_enable();
}
if (timer1 == TIMER1_OFF) power_timer1_enable();
if (timer0 == TIMER0_OFF) power_timer0_enable();
if (spi == SPI_OFF) power_spi_enable();
if (usart0 == USART0_OFF) power_usart0_enable();
if (twi == TWI_OFF) power_twi_enable();
}
// Shutdown
void bg_pwr_down()
{
// execute sleep routine
if (bg_pwr_exec_sleep_routine_flag)
{
if (bg_pwr_on_sleep != NULL)
bg_pwr_on_sleep();
// the flag is needed because we want to execute sleep
// routine only when we go from pwr up to pwr down
bg_pwr_exec_sleep_routine_flag = 0;
}
//Shut off ADC, TWI, SPI, Timer0, Timer1, Timer2
ADCSRA &= ~(1<<ADEN); //Disable ADC
ACSR |= (1<<ACD); //Disable the analog comparator
DIDR0 = 0xFF; //Disable digital input buffers on all ADC0-ADC5 pins
DIDR1 = (1<<AIN1D)|(1<<AIN0D); //Disable digital input buffer on AIN1/0
power_twi_disable();
power_spi_disable();
power_usart0_disable();
power_timer0_disable();
power_timer1_disable();
power_timer2_disable();
#if defined(__AVR_ATmega1284P__)
power_timer3_disable();
#endif
//Power down various bits of hardware to lower power usage
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_mode();
/*********/
/* SLEEP */
/*********/
// The processor wakes up back here after interrupt
//Turn on ADC, TWI, SPI, Timer0, Timer1, Timer2
ADCSRA |= (1<<ADEN); // Enable ADC
ACSR &= ~(1<<ACD); // Enable the analog comparator
// this should be set to reflect real usage of analog pins
DIDR0 = 0x00; // Enable digital input buffers on all ADC0-ADC5 pins
DIDR1 &= ~(1<<AIN1D)|(1<<AIN0D); // Enable digital input buffer on AIN1/0
power_twi_enable();
power_spi_enable();
power_usart0_enable();
power_timer0_enable();
power_timer1_enable();
power_timer2_enable();
#if defined(__AVR_ATmega1284P__)
power_timer3_enable();
#endif
// check button press time and handle state
unsigned long start = millis();
while ( (ellapsed_millis(start) < BG_PWR_BUTTON_TIME) && (digitalRead(bg_pwr_switch_pin) == HIGH) );
// if the button is pressed continuously for 2 seconds, swap to on state
if (ellapsed_millis(start) >= BG_PWR_BUTTON_TIME)
bg_pwr_state = BG_STATE_PWR_UP;
// lower the button flag
bg_pwr_button_pressed_flag = 0;
// execute wake up routine only if we really woke up
if (bg_pwr_state == BG_STATE_PWR_UP || sd_reader_interrupted)
{
// execute wake up routine if any is defined
if (bg_pwr_on_wakeup != NULL)
bg_pwr_on_wakeup();
// next time we sleep execute sleep routine
bg_pwr_exec_sleep_routine_flag = 1;
}
}
