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example_poll.c
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44 lines (36 loc) · 873 Bytes
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#include "multi_button.h"
uint8_t btn1_id = 0;
struct Button btn1;
uint8_t read_button_GPIO(uint8_t button_id)
{
// you can share the GPIO read function with multiple Buttons
switch(button_id)
{
case btn1_id:
return HAL_GPIO_ReadPin(B1_GPIO_Port, B1_Pin);
default:
return 0;
}
}
int main()
{
static PressEvent btn1_event_val;
button_init(&btn1, read_button_GPIO, 0, btn1_id);
button_start(&btn1);
//make the timer invoking the button_ticks() interval 5ms.
//This function is implemented by yourself.
__timer_start(button_ticks, 0, 5);
while(1)
{
if(btn1_event_val != get_button_event(&btn1)) {
btn1_event_val = get_button_event(&btn1);
if(btn1_event_val == PRESS_DOWN) {
//do something
} else if(btn1_event_val == PRESS_UP) {
//do something
} else if(btn1_event_val == LONG_PRESS_HOLD) {
//do something
}
}
}
}