Wakeup timer with several sources

嗨gbmej，

I am not sure i get exactly the point, the part that you mentioned when you get the lock confused me a bit, tried to replicate what you mentioned, i ve done the following test in the hrp_sensor which allready implements one wake up source. The "static" wake up source is triggered LOW and the default pin configuration is PULLUP the changing wakeup source (the one that changes configuration in the interrupt routine) has initially the same pollarity, and the code that performs the change is attached below.

//全局变量

__retated 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();
＃万一
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);
if ( my_gpio_mode == HW_GPIO_MODE_INPUT_PULLDOWN) {
my_gpio_mode = HW_GPIO_MODE_INPUT_PULLUP;
} 别的 {
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（）;//这将有助于每次中断触发时用薄的红线识别电源分布器中的中断
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);

As long as you trigger the interrupt and then release the line from the triggered state both of the interrupts occur as they should, please check how the change is performed on the snippet above and how the wake up condition of the pin is configured based on the default state of the pin, hw_gpio_get_pin_function() used to check the default pin configuration hw_gpio_set_pin_function() is used to set the proper default pin state (opposite from the previous interrupt hit).

谢谢mt_dialog.

嗨gbmej，

You mean that there is no interrupt while the M0 is executing ISR of a button press ? Is that correct ? This doesn't have to do with the wake up controller but how the M0 and the NVIC operates, if the processor gets an interrupt while there is another interrupt executing the interrupt handler, since both interrupts have the same priority the pending interrupt flag will be set to 1 and as soon as the previous ISR gets executed it will be invoked again to serve the pending interrupt, and as far as i have tested this is exactly what the 68x does.

现在在您的情况下，我看到您的引脚配置了下拉和上拉的内部电阻，我可以想象这是锁定中断的原因，也许在外部设备未正确驱动特定线路的情况下状态将发生上拉并保持唤醒控制器的中断信号，用于至少一个引脚源，我假设是切换其状态的引脚源，这足以发生中断，并且唤醒控制器等待唤醒控制器对于在报告另一个中断之前要断言中断。因此，如果您确定外部传感器正常驱动线路，或者如果您想使用内部电阻，则可以尝试使用内部拉动UPS，或者您应该将电阻的默认状态更改为相反的电阻将触发唤醒的状态，使用HW_GPIO_SET_PIN_FUNCTION（）在我的前一篇文章中提到的内容，以便更改默认引脚配置。

谢谢mt_dialog.