int gd32_pin_read(rt_device_t dev, rt_base_t pin)
{
int value;
const struct pin_index *index;
value = PIN_LOW;
index = get_pin(pin);
if (index == RT_NULL)
{
return value;
}
value = gpio_input_bit_get(index->gpio_periph, index->pin);
return value;
}
/*!
\brief main function
\param[in] none
\param[out] none
\retval none
*/
int main(void)
{
/* systick config */
systick_config();
/* led config */
led_config();
/* clock enable */
rcu_periph_clock_enable(RCU_PMU);
/* wakeup key config */
gd_eval_keyinit(KEY_WAKEUP,KEY_MODE_GPIO);
/* tamper key EXTI config */
gd_eval_keyinit(KEY_TAMPER,KEY_MODE_EXTI);
/* press wakeup key to enter deepsleep mode and use tamper key generate a exti interrupt to wakeup mcu */
while(1){
if(RESET == gpio_input_bit_get(WAKEUP_KEY_GPIO_PORT,WAKEUP_KEY_PIN))
pmu_to_deepsleepmode(PMU_LDO_LOWPOWER,WFI_CMD);
}
}
/*!
\brief main function
\param[in] none
\param[out] none
\retval none
*/
int main(void)
{
/* clock enable */
rcu_periph_clock_enable(RCU_PMU);
/* led configuration and turn on all led */
led_config();
gd_eval_ledon(LED1);
gd_eval_ledon(LED3);
gd_eval_ledon(LED2);
gd_eval_ledon(LED4);
/* tamper key configuration */
gd_eval_keyinit(KEY_TAMPER,KEY_MODE_GPIO);
/* wakeup pin enable */
pmu_wakeup_pin_enable(PMU_WAKEUP_PIN0);
/* press tamper key to enter standby mode and use wakeup key to wakeup mcu */
while(1){
if(RESET == gpio_input_bit_get(TAMPER_KEY_GPIO_PORT,TAMPER_KEY_PIN))
pmu_to_stdbymode(WFI_CMD);
}
}