diff --git a/home.c b/home.c
index 4832fb9..883671e 100644
--- a/home.c
+++ b/home.c
@@ -44,7 +44,7 @@ void home() {
 			delay(5);
 			unstep();
 			// wait until next step time
-			delay((uint32_t) (60.0 * ((float) F_CPU) / STEPS_PER_MM_X / ((float) MAXIMUM_FEEDRATE_X)));
+			delay((uint32_t) (60.0 * 1000000.0 / STEPS_PER_MM_X / ((float) MAXIMUM_FEEDRATE_X)));
 		}
 		denoise_count = 0;
 
@@ -61,7 +61,7 @@ void home() {
 			delay(5);
 			unstep();
 			// wait until next step time
-			delay((uint32_t) (60.0 * ((float) F_CPU) / STEPS_PER_MM_X / ((float) SEARCH_FEEDRATE_X)));
+			delay((uint32_t) (60.0 * 1000000.0 / STEPS_PER_MM_X / ((float) SEARCH_FEEDRATE_X)));
 		}
 
 		// set X home
@@ -91,7 +91,7 @@ void home() {
 			delay(5);
 			unstep();
 			// wait until neyt step time
-			delay((uint32_t) (60.0 * ((float) F_CPU) / STEPS_PER_MM_Y / ((float) MAXIMUM_FEEDRATE_Y)));
+			delay((uint32_t) (60.0 * 1000000.0 / STEPS_PER_MM_Y / ((float) MAXIMUM_FEEDRATE_Y)));
 		}
 		denoise_count = 0;
 
@@ -108,7 +108,7 @@ void home() {
 			delay(5);
 			unstep();
 			// wait until next step time
-			delay((uint32_t) (60.0 * ((float) F_CPU) / STEPS_PER_MM_Y / ((float) SEARCH_FEEDRATE_Y)));
+			delay((uint32_t) (60.0 * 1000000.0 / STEPS_PER_MM_Y / ((float) SEARCH_FEEDRATE_Y)));
 		}
 
 		// set Y home
@@ -138,7 +138,7 @@ void home() {
 			delay(5);
 			unstep();
 			// wait until next step time
-			delay((uint32_t) (60.0 * ((float) F_CPU) / STEPS_PER_MM_Z / ((float) MAXIMUM_FEEDRATE_Z)));
+			delay((uint32_t) (60.0 * 1000000.0 / STEPS_PER_MM_Z / ((float) MAXIMUM_FEEDRATE_Z)));
 		}
 		denoise_count = 0;
 
@@ -155,7 +155,7 @@ void home() {
 			delay(5);
 			unstep();
 			// wait until next step time
-			delay((uint32_t) (60.0 * ((float) F_CPU) / STEPS_PER_MM_Z / ((float) SEARCH_FEEDRATE_Z)));
+			delay((uint32_t) (60.0 * 1000000.0 / STEPS_PER_MM_Z / ((float) SEARCH_FEEDRATE_Z)));
 		}
 
 		// set Z home