diff --git a/cube/User/Inc/logger.h b/cube/User/Inc/logger.h
index 8aac1f0..d4a9fbd 100644
--- a/cube/User/Inc/logger.h
+++ b/cube/User/Inc/logger.h
@@ -6,7 +6,7 @@
 #include <stdbool.h>
 
 
-#define LOGGER_OUTPUT_BY_INTERRUPT
+// #define LOGGER_OUTPUT_BY_INTERRUPT
 
 typedef enum {
     LOG_NORMAL,
@@ -34,7 +34,7 @@ void debugTxCpltCallback(UART_HandleTypeDef *huart);
 #endif
 
 #ifndef LOGGER_OUTPUT_BY_INTERRUPT
-void logExec();
+int logExec();
 #endif
 
 #endif // _LOGGER_H_
diff --git a/cube/User/Src/logger.c b/cube/User/Src/logger.c
index 71ca85c..0cecfbf 100644
--- a/cube/User/Src/logger.c
+++ b/cube/User/Src/logger.c
@@ -17,6 +17,10 @@
 #include <stm32f103xe.h>
 #endif //LOGGER_OUTPUT_BY_INTERRUPT
 
+#ifndef LOGGER_OUTPUT_BY_INTERRUPT
+#include <stm32f1xx_hal_uart.h>
+#endif //LOGGER_OUTPUT_BY_INTERRUPT
+
 
 #define LOGBUFFER_SIZE 2048
 #define MSGBUFFER_SIZE 256