void LcdDisplayInitPwm(void)
{
PioSetMode(PIO_LED, pio_mode_user);
PioSetDir(PIO_LED, TRUE); /* Output */
PioSet(PIO_LED, FALSE);
PioSetMode(PIO_LED, pio_mode_pwm0); /* PIO is controlled by PWM. */
LcdDisplayBacklight(10, 10); /* Start with dim light. */
PioEnablePWM(PWM_ID_LED, TRUE);
} /* LcdDisplayInitPwm */
void LcdDisplayInitRst(void)
{
/* Set up the PIOs for the RST pin on the LCD display. */
PioSetPullModes((1UL << PIO_RST), pio_mode_no_pulls);
PioSetMode(PIO_RST, pio_mode_user);
PioSetDir(PIO_RST, TRUE); /* Output */
PioSet(PIO_RST, TRUE);
} /* LcdDisplayInitRst */
void AppInit(sleep_state last_sleep_state)
{
/* set all PIOs to inputs and pull them down */
PioSetModes(0xFFFFFFFFUL, pio_mode_user);
PioSetDirs(0xFFFFFFFFUL, FALSE);
PioSetPullModes(0xFFFFFFFFUL, pio_mode_strong_pull_down);
/* Set LED0 and LED1 to be controlled directly via PioSet */
PioSetModes((1UL << PIO_LED0), pio_mode_user);
/* Configure LED0 and LED1 to be outputs */
PioSetDir(PIO_LED0, PIO_DIR_OUTPUT);
/* Set the LED0 and LED1 to have strong internal pull ups */
PioSetPullModes((1UL << PIO_LED0),
pio_mode_strong_pull_up);
/* Configure button to be controlled directly */
PioSetMode(PIR_SIGNAL, pio_mode_user);
/* Configure button to be input */
PioSetDir(PIR_SIGNAL, PIO_DIR_INPUT);
/* Set weak pull up on button PIO, in order not to draw too much current
* while button is pressed
*/
PioSetPullModes((1UL << PIR_SIGNAL), pio_mode_weak_pull_down);
/* Set the button to generate sys_event_pio_changed when pressed as well
* as released
*/
PioSetEventMask((1UL << PIR_SIGNAL), pio_event_mode_rising);
/* disable wake up on UART RX */
SleepWakeOnUartRX(FALSE);
/* pull down the I2C lines */
PioSetI2CPullMode(pio_i2c_pull_mode_strong_pull_down);
/* Reset LED sequence */
restartLedSeq();
SleepModeChange(sleep_mode_deep);
TimerInit(MAX_APP_TIMERS, (void*)app_timers);
BeaconInit();
pirStatusServiceInit();
}
/*----------------------------------------------------------------------------*
* NAME
* AppInit
*
* DESCRIPTION
* This user application function is called after a power-on reset
* (including after a firmware panic), after a wakeup from Hibernate or
* Dormant sleep states, or after an HCI Reset has been requested.
*
* NOTE: In the case of a power-on reset, this function is called
* after AppPowerOnReset().
*
* PARAMETERS
* last_sleep_state [in] Last sleep state
*
* RETURNS
* Nothing
*----------------------------------------------------------------------------*/
void AppInit(sleep_state last_sleep_state)
{
/* Initialise UART communications */
DebugInit(1, NULL, NULL);
DebugWriteString("Configuring PWM Modes\r\n");
/* Configure the output PIO on which the slow flashing LED signal is
* generated */
PioSetDir(PIO_LED, PIO_DIR_OUTPUT);
/* SLOW FLASHING WITH PWM:
* Configure PWM 0 to have the following characteristics
* DULL LED Light is generated by having pulses of 0ms ON and
* 6ms OFF (~0% duty cycle)
* BRIGHT LED Light is generated by having pulses of 6ms ON and
* 0ms OFF (~100% duty cycle)
* Dullest and Brightest level are held for ~1s
*
* The brightness level ramps for ~1s when going from dullest to
* brightest and vice-versa */
if (PioConfigPWM(0, pio_pwm_mode_push_pull,
/* Pulse timings for the dullest part of the sequence:
* dullest part of the sequence has the pulse off for the whole
* period, in effect the line stays low for the duration for which
* the dullest part of the sequence lasts. */
0, /* ON time for the pulse is 0us */
255, /* OFF time for the pulse is (255 * 30)us */
62, /* Dullest part of the sequence lasts for
( 62 * 16 )ms before ramping up to the brightest
part of the sequence */
/* Pulse timings for the brightest part of the sequence:
* brightest part of the sequence has the pulse ON for the whole
* period, in effect the line stays high for the duration for which
* the brightest part of the sequence lasts. */
255, /* ON time for the pulse is (255 * 30)us */
0, /* OFF time for the pulse is 0us */
62, /* Brightest part of the sequence lasts for
( 62 * 16 )ms before ramping down to the dullest
part of the sequence */
/* Ramping between dullest and brightest parts of the sequence
* This parameter determines the duration for which the ramping
* lasts when going from dullest to the brightest (and vice-versa).
*
* The total duration for which the ramping lasts is determined by
* multiplying this value with one less than the difference between
* the on_time or off_time of the two states, whichever is bigger;
* in the units of 30us
* */
132 /* Ramping lasts for ((255-1) * 132 * 30)us */
))
{
DebugWriteString("PWM0 was set to ramp between brightest and dullest "
"levels\r\n");
/* Connect PWM0 output to LED */
PioSetMode(PIO_LED, pio_mode_pwm0);
/* Enable the PWM0 */
PioEnablePWM(0, TRUE);
}
else
{
DebugWriteString("PWM0 couldn't be configured\r\n");
}
/* Set both outputs to have strong internal pull ups */
PioSetPullModes((1UL << PIO_MOTOR) | (1UL << PIO_LED),
pio_mode_strong_pull_up);
/* Configure motor PIO to be output */
PioSetDir(PIO_MOTOR, PIO_DIR_OUTPUT);
/* Connect PWM1 output to motor PIO */
PioSetMode(PIO_MOTOR, pio_mode_pwm1);
/* Initialise timers */
TimerInit(MAX_APP_TIMERS, app_timers);
/* Call the function (with a dummy timer ID to start with) to configure
* the PWM1 with initial duty cycle and start a timer. When the timer
* expires the same function gets called again and the duty cycle for
* PWM1 gets updated. It takes care of restarting the timer and ensuring
* that duty cycle alternates between 0% and 100% back and forth. */
dutyCycleTask(TIMER_INVALID);
/* Enable the PWM1 */
PioEnablePWM(1, TRUE);
}