diff --git a/ccs/main.c b/ccs/main.c
index 13af0cb..d2c4d2e 100755
--- a/ccs/main.c
+++ b/ccs/main.c
@@ -19,6 +19,8 @@ const float Kd = 600.0f;// D gain
 #define BASE_SPEED 1500// Slower speed (approx 10% duty of 15000)
 #define MAX_DRV 3000   // Max speed limit (20% duty)
 
+#define PERIOD_MS 20
+
 void main() {
     Clock_Init48MHz();
     ir_init();
@@ -113,7 +115,7 @@ void main() {
         }
 
         // F. Loop Delay (Sampling Time)
-        Clock_Delay1ms(2);
+        Clock_Delay1ms(PERIOD_MS);
     }
 
 finish: