???

src/main.c

@@ -120,21 +120,54 @@ void set_progress(double percentage)
 void callback(uint gpio, uint32_t events)
 
 {
-    int b = 4;
-    int c = 9;
-    volatile uint another_slice_num = pwm_gpio_to_slice_num(27);
 
-    if (events & GPIO_IRQ_EDGE_RISE) // reset pwm counter
+    uint32_t event3 = events;
+    /* volatile uint another_slice_num = pwm_gpio_to_slice_num(27);
+
+    if (events & GPIO_IRQ_LEVEL_HIGH)
     {
-        pwm_set_counter(another_slice_num, 0);
+        volatile uint16_t test = pwm_get_counter(another_slice_num);
     }
-    else if (events & GPIO_IRQ_EDGE_FALL)
+
+    else if (events & GPIO_IRQ_LEVEL_LOW)
     {
-        volatile uint16_t test = pwm_get_counter(another_slice_num);
-        set_progress(100);
+        pwm_set_counter(another_slice_num, 0);
     }
+    */
+    //    volatile uint16_t test = pwm_get_counter(another_slice_num);
+    //    volatile float distance = (test * 314) / (20000);
+    //    if (distance > 20)
+    //    {
+    //       distance = 20;
+    //   }
+
+    // distance = 20 - distance;
+
+    //    volatile int percentage = (distance / 10) * 100;
+
+    //  set_progress(percentage);
+    // pwm_set_counter(another_slice_num, 0);
 }
 
+void init_pwm()
+{
+    gpio_set_function(28, GPIO_FUNC_PWM);
+
+    volatile uint slice_num = pwm_gpio_to_slice_num(28);
+    pwm_set_clkdiv(slice_num, 133);
+    pwm_set_wrap(slice_num, 0xFFFF);
+    pwm_set_chan_level(slice_num, PWM_CHAN_A, 10);
+    pwm_set_enabled(slice_num, true);
+}
+void pwm_echo_init()
+{
+    volatile uint slice_num = pwm_gpio_to_slice_num(27);
+
+    pwm_set_clkdiv(slice_num, 1);
+    pwm_set_wrap(slice_num, 0xFFFF);
+    pwm_set_clkdiv_mode(slice_num, PWM_DIV_FREE_RUNNING);
+    pwm_set_enabled(slice_num, true);
+}
 int a = 0;
 
 int main()
@@ -163,23 +196,13 @@ int main()
 
     i2c_write_blocking(i2c_default, 0x70, empty, 17, false);
 
-    gpio_set_function(28, GPIO_FUNC_PWM);
-
-    volatile uint slice_num = pwm_gpio_to_slice_num(28);
-    pwm_set_clkdiv(slice_num, 133);
-    pwm_set_wrap(slice_num, 0xFFFF);
-    pwm_set_chan_level(slice_num, PWM_CHAN_A, 10);
-    pwm_set_enabled(slice_num, true);
-
-    volatile uint another_slice_num = pwm_gpio_to_slice_num(27);
+    init_pwm();
+    pwm_echo_init();
 
-    pwm_set_clkdiv(another_slice_num, 1);
-    pwm_set_wrap(another_slice_num, 0xFFFF);
-    pwm_set_clkdiv_mode(another_slice_num, PWM_DIV_FREE_RUNNING);
-    pwm_set_enabled(another_slice_num, true);
-    set_progress(0);
+    gpio_set_irq_enabled_with_callback(27, GPIO_IRQ_LEVEL_LOW, true, &callback);
 
-    gpio_set_irq_enabled_with_callback(27, GPIO_IRQ_LEVEL_LOW | GPIO_IRQ_LEVEL_HIGH | GPIO_IRQ_EDGE_FALL | GPIO_IRQ_EDGE_RISE, true, &callback);
+    while (1)
+        ;
     /*
     timer_hw->dbgpause = 0;
     gpio_init(27);