diff --git a/Inc/PwmFlagchip.h b/Inc/PwmFlagchip.h
index 86bc570..d395c36 100644
--- a/Inc/PwmFlagchip.h
+++ b/Inc/PwmFlagchip.h
@@ -22,4 +22,13 @@ typedef struct {
 
 tPwmIO vPwmGetIo(tPwmFlagchip *env);
 
+// Частота шины
+#define BUS_CLK 120.0f
+// Делитель выходной частоты
+#define SCG_CLK_DIV 4.0f
+// Период такта
+// (1 / (BUS_CLK / SCG_CLK_DIV))
+
+#define NS_TO_TIME(NS) (NS / (1 / (BUS_CLK / SCG_CLK_DIV)))
+
 #endif //PWM_FLAGCHIP_H
diff --git a/Src/PwmFlagchip.c b/Src/PwmFlagchip.c
index 7a93f13..6c0e86d 100644
--- a/Src/PwmFlagchip.c
+++ b/Src/PwmFlagchip.c
@@ -4,6 +4,7 @@
 #include <SystemDelayInterface.h>
 #include "PwmFlagchip.h"
 
+
 void Set_Tpu_PwmCallback(tPwmFlagchip *env) {
     TPU_PwmServiceReq(env->TPU_PWM_CHANNEL, env->etpu_pwmconfig_tbl.u32ActiveTime,
                       env->etpu_pwmconfig_tbl.u32PeriodTime);