-static _Bool conf_counter_sum = 0;
-static _Bool conf_timer_lower = 0;
-static _Bool conf_timer_upper = 0;
-static _Bool conf_timer_sum = 0;
-static _Bool conf_timer_count = 0;
+static bool conf_counter_sum = 0;
+static bool conf_timer_lower = 0;
+static bool conf_timer_upper = 0;
+static bool conf_timer_sum = 0;
+static bool conf_timer_count = 0;