/**
****************************************************************************************
* @brief Check application whether to enter sleep mode
* @return sleep allowed status
****************************************************************************************
*/
int usr_sleep(void)
{
int32_t rt;
rt = sleep_get_pm();
// If the BLE timer queue is not NULL, prevent entering into DEEPSLEEP mode
if(rt == PM_DEEP_SLEEP && !ke_timer_empty())
{
rt = PM_SLEEP;
}
// Check Device status
if((rt >= PM_SLEEP)
&& dev_get_bf())
{
// If any devices are still working, the chip cann't enter into SLEEP/DEEPSLEEP mode.
rt = PM_IDLE;
}
if ((rt >= PM_SLEEP) && (!gpio_sleep_allowed()))
{
return PM_ACTIVE; // If CLOCK OFF & POWER DOWN is disabled, return immediately
}
#if QN_DBG_PRINT
int uart_tx_st = uart_check_tx_free(QN_DEBUG_UART);
if((rt >= PM_SLEEP) && (uart_tx_st == UART_TX_BUF_BUSY))
{
rt = PM_IDLE;
}
else if(uart_tx_st == UART_LAST_BYTE_ONGOING)
{
return PM_ACTIVE; // If CLOCK OFF & POWER DOWN is disabled, return immediately
}
#endif
#if QN_EACI
if((GPIO_LOW == gpio_read_pin(QN_EACI_GPIO_WAKEUP_QN_MCU)) // Check external wakeup source
|| (eaci_env.tx_state!=EACI_STATE_TX_IDLE) // Check EACI UART TX status
|| (eaci_env.rx_state!=EACI_STATE_RX_START)) // Check EACI UART RX status
{
rt = PM_IDLE;
}
int tx_st = uart_check_tx_free(QN_HCI_UART);
if((rt >= PM_SLEEP) && (tx_st == UART_TX_BUF_BUSY))
{
rt = PM_IDLE;
}
else if(tx_st == UART_LAST_BYTE_ONGOING)
{
return PM_ACTIVE; // If CLOCK OFF & POWER DOWN is disabled, return immediately
}
#endif
#if QN_COM
if((GPIO_LOW == gpio_read_pin(QN_EACI_GPIO_WAKEUP_QN_MCU)) // Check external wakeup source
|| (eaci_env.tx_state!=EACI_STATE_TX_IDLE) // Check EACI UART TX status
|| (eaci_env.rx_state!=EACI_STATE_RX_START)) // Check EACI UART RX status
{
rt = PM_IDLE;
}
int tx_st = uart_check_tx_free(QN_COM_UART);
if((rt >= PM_SLEEP) && (tx_st == UART_TX_BUF_BUSY))
{
rt = PM_IDLE;
}
else if(tx_st == UART_LAST_BYTE_ONGOING)
{
return PM_ACTIVE; // If CLOCK OFF & POWER DOWN is disabled, return immediately
}
#endif
return rt;
}
int main (void)
{
SystemInit();
#if 0
if (0x00000004 & inp32(0x40000038)) {
outp32(0x40000038, 0x80000000);
}
else {
Led_flash();
while(1);
}
#endif
/* Initialize GPIO */
gpio_init(cb_gpio);
#if TEST_SLEEP_NORMAL == TRUE
// --------------------------------------------
// sleep wakeup
// --------------------------------------------
//set all pin to gpio
syscon_SetPMCR0(QN_SYSCON, 0x00000000);
syscon_SetPMCR1(QN_SYSCON, 0x00000000);
//set all gpio input
gpio_set_direction_field(GPIO_PIN_ALL, GPIO_INPUT);
gpio_write_pin_field(GPIO_PIN_ALL, (uint32_t)GPIO_HIGH);
// pin pull ( 00 : High-Z, 01 : Pull-down, 10 : Pull-up, 11 : Reserved )
syscon_SetPPCR0(QN_SYSCON, 0xAAAA5AAA); // SWD pull-down save 20uA
syscon_SetPPCR1(QN_SYSCON, 0x2AAAAAAA);
// power down BUCK needed
syscon_SetIvrefX32WithMask(QN_SYSCON, SYSCON_MASK_BUCK_BYPASS|SYSCON_MASK_BUCK_DPD, MASK_ENABLE);
// power down Flash
syscon_SetPGCR2WithMask(QN_SYSCON, SYSCON_MASK_FLASH_VCC_EN, MASK_DISABLE);
// enable dbg power down
syscon_SetPGCR2WithMask(QN_SYSCON, SYSCON_MASK_DBGPMUENABLE, MASK_ENABLE);
// dis sar adc buffer
syscon_SetPGCR1WithMask(QN_SYSCON, SYSCON_MASK_DIS_SAR_BUF, MASK_ENABLE);
Led_flash();
do {
delay(10);
} while (gpio_read_pin(GPIO_P14) == GPIO_HIGH);
sleep_init();
wakeup_by_sleep_timer(__32K_TYPE);
wakeup_by_gpio(GPIO_P15, GPIO_WKUP_BY_LOW);
do {
gpio_set_direction(GPIO_P01, GPIO_INPUT);
//enter_sleep(SLEEP_NORMAL, WAKEUP_BY_GPIO, Led_flash);
if (wakeup_from_sleeptimer) {
sleep_timer_set(32000);
wakeup_from_sleeptimer = 0;
#if QN_32K_RCO == TRUE
clock_32k_correction_enable(clock_32k_correction_cb);
#endif
}
#if QN_32K_RCO == TRUE
if (gpio_sleep_allowed() && !dev_get_bf())
#else
if (gpio_sleep_allowed())
#endif
enter_sleep(SLEEP_NORMAL, WAKEUP_BY_OSC_EN|WAKEUP_BY_GPIO, Led_flash);
} while(1);
#endif
#if TEST_SLEEP_DEEP == TRUE
// --------------------------------------------
// deep sleep wakeup
// --------------------------------------------
//set all pin to gpio
syscon_SetPMCR0(QN_SYSCON, 0x00000000);
syscon_SetPMCR1(QN_SYSCON, 0x00000000);
//set all gpio input
gpio_set_direction_field(GPIO_PIN_ALL, (uint32_t)GPIO_INPUT);
gpio_write_pin_field(GPIO_PIN_ALL, (uint32_t)GPIO_HIGH);
// pin pull ( 00 : High-Z, 01 : Pull-down, 10 : Pull-up, 11 : Reserved )
syscon_SetPPCR0(QN_SYSCON, 0xAAAA5AAA); // SWD pull-down save 20uA
syscon_SetPPCR1(QN_SYSCON, 0x2AAAAAAA);
// power down BUCK needed
syscon_SetIvrefX32WithMask(QN_SYSCON, SYSCON_MASK_BUCK_BYPASS|SYSCON_MASK_BUCK_DPD, MASK_ENABLE);
// power down Flash
syscon_SetPGCR2WithMask(QN_SYSCON, SYSCON_MASK_FLASH_VCC_EN, MASK_DISABLE);
// enable dbg power down
syscon_SetPGCR2WithMask(QN_SYSCON, SYSCON_MASK_DBGPMUENABLE, MASK_ENABLE);
// dis sar adc buffer
syscon_SetPGCR1WithMask(QN_SYSCON, SYSCON_MASK_DIS_SAR_BUF, MASK_ENABLE);
Led_flash();
do {
delay(10);
} while (gpio_read_pin(GPIO_P14) == GPIO_HIGH);
sleep_init();
do {
gpio_set_direction(GPIO_P01, GPIO_INPUT);
wakeup_by_gpio(GPIO_P15, GPIO_WKUP_BY_CHANGE);
enter_sleep(SLEEP_DEEP, WAKEUP_BY_GPIO, Led_flash);
} while(1);
#endif
#if TEST_SLEEP_CPU_CLK_OFF == TRUE
// --------------------------------------------
// clock gating
// --------------------------------------------
// Set timer 0 wakeup
timer_init(QN_TIMER0, NULL);
timer_config(QN_TIMER0, TIMER_PSCAL_DIV, TIMER_COUNT_MS(1000, TIMER_PSCAL_DIV));
timer_enable(QN_TIMER0, MASK_ENABLE);
sleep_init();
do {
enter_sleep(SLEEP_CPU_CLK_OFF, WAKEUP_BY_TIMER0, NULL);
Led_flash();
}
while(1);
#endif
}
