diff --git a/app/include/driver/uart.h b/app/include/driver/uart.h
index bc175ee8..b4f4acfb 100644
--- a/app/include/driver/uart.h
+++ b/app/include/driver/uart.h
@@ -33,18 +33,23 @@ typedef enum {
 } UartExistParity;
 
 typedef enum {
-    BIT_RATE_1200     = 1200,
-    BIT_RATE_2400     = 2400,
-    BIT_RATE_4800     = 4800,  
-    BIT_RATE_9600     = 9600,
+    BIT_RATE_300     = 300,
+    BIT_RATE_600     = 600,
+    BIT_RATE_1200    = 1200,
+    BIT_RATE_2400    = 2400,
+    BIT_RATE_4800    = 4800,
+    BIT_RATE_9600    = 9600,
     BIT_RATE_19200   = 19200,
     BIT_RATE_38400   = 38400,
     BIT_RATE_57600   = 57600,
     BIT_RATE_74880   = 74880,
-    BIT_RATE_115200 = 115200,
-    BIT_RATE_230400 = 230400,
-    BIT_RATE_460800 = 460800,
-    BIT_RATE_921600 = 921600
+    BIT_RATE_115200  = 115200,
+    BIT_RATE_230400  = 230400,
+    BIT_RATE_256000  = 256000,
+    BIT_RATE_460800  = 460800,
+    BIT_RATE_921600  = 921600,
+    BIT_RATE_1843200 = 1843200,
+    BIT_RATE_3686400 = 3686400,
 } UartBautRate;
 
 typedef enum {