constants replaced with macro definition

src/main.c

@@ -12,9 +12,6 @@
 
 #include "ultrasonic_driver.h"
 
-#define ULTRASONIC_CYCLES     0x05U
-#define ULTRASONIC_TRAN_US    50  // (ms)
-
 extern uint32_t capture_value;
 
 /*!
@@ -30,13 +27,13 @@ int main(void)
     /* configure ultrasonic board hardware */
     ultrasonic_transmit_config();
 
-
-
-    /* ---------- debug start ---------- */
-    ultrasonic_transmit_delay(250);
+    ultrasonic_transmit_delay(TIME_CORRECTION_US);
     recevice_exti_config();
     ultrasonic_echo_timer_config();
 
+    /* ---------- debug start ---------- */
+
+
 
 
     /* ---------- debug end ---------- */