Wakeup timer with several sources

你好gbmej,

我不确定我完全得到了这一点，你提到的部分当你锁定时让我感到困惑，试图复制你所提到的内容，我在HRP_Sensor中完成了以下测试，它已经实现了一个唤醒源。触发“静态”唤醒源触发低电平，默认引脚配置是上拉更改唤醒源（中断例程中的配置更改配置）具有最初相同的手机，以及执行更改的代码在下面连接。

//Global variables

__RETAINED HW_GPIO_MODE my_gpio_mode = HW_GPIO_MODE_INPUT_PULLUP;
__RETAINED HW_GPIO_FUNC my_gpio_function;

static void wkup_cb(void)
{

#if dg_configBLACK_ORCA_IC_REV == BLACK_ORCA_IC_REV_A
hw_wkup_reset_counter();
#endif
hw_wkup_reset_interrupt（）;
hw_gpio_get_pin_function(CFG_START_ADVERTISING_TRIGGER_1_GPIO_PORT, CFG_START_ADVERTISING_TRIGGER_1_GPIO_PIN, &my_gpio_mode, &my_gpio_function);
如果(my_gpio_mode = = HW_GPIO_MODE_INPUT_PULLDOWN) {
my_gpio_mode = hw_gpio_mode_input_pullup;
} else {
my_gpio_mode = HW_GPIO_MODE_INPUT_PULLDOWN;
}
hw_gpio_set_pin_function（cfg_start_advertising_trigger_1_gpio_port，cfg_start_advertising_trigger_1_gpio_pin，my_gpio_mode，hw_gpio_func_gpio）;

hw_wkup_configure_pin（cfg_start_advertising_trigger_1_gpio_port，cfg_start_advertising_trigger_1_gpio_pin，true，
my_gpio_mode!=HW_GPIO_MODE_INPUT_PULLDOWN?HW_WKUP_PIN_STATE_LOW:HW_WKUP_PIN_STATE_HIGH);

hw_cpm_trigger_sw_cursor(); //this will help identify the interrupt in the power profiler with a thin red line each time the interrupt triggers
hrp_wkup_cb（）;
}

In the periph_init():

hw_gpio_set_pin_function（cfg_start_advertising_trigger_1_gpio_port，cfg_start_advertising_trigger_1_gpio_pin，my_gpio_mode，hw_gpio_func_gpio）;

只要触发中断，然后从触发状态释放行，都会出现在触发状态，因此应该检查上面的片段上的更改以及引脚的唤醒状态如何基于该中断用于检查默认引脚配置HW_GPIO_SET_PIN_FUNCTION（）的默认引脚，HW_GPIO_GET_PIN_FUNCTION（）用于设置正确的默认PIN状态（与先前中断命中相反）。

Thanks MT_dialog

你好gbmej,

你的意思是，M0正在执行一个按钮按下的ISR时没有中断？那是对的吗 ？这与唤醒控制器无关，而是M0和NVIC如何运行，如果处理器在执行中断处理程序时进行中断，因为两个中断都具有相同的优先级，因此挂起的中断标志将是相同的设置为1，一旦上一个ISR被执行，它将再次调用它来服务挂起的中断，并且就我测试了这正是68倍的所做中断。

Now in your case i see that your pins are configured with the internal resistors in pulldown and pullup, i can imagine that this is the reason for the interrupts to lock, perhaps in case that the external device is not properly driving the line in a specific state the pullups will take place and keep the interrupt signal for the wake up controller asserted for at least one pin source which i suppose is the one that toggles its state, and this is enough for no interrupts to occur and the wake up controller to wait for the interrupt to be asserted before reporting another interrupt. So you can try to either not to use the internal pull ups in case you are certain that the external sensor is driving the lines properly, or if you would like to use the internal resistors you should alter the default state of the resistor to the opposite of the state that will trigger the wake up, something like i have mentioned in my previous post, using the hw_gpio_set_pin_function() in order to change the default pin configuration.

Thanks MT_dialog