Index: yc_spi.h
===================================================================
--- /YC3121_SDK/fw/sdk/yc_spi.h	(revision 573)
+++ /YC3121_SDK/fw/sdk/yc_spi.h	(working copy)
@@ -47,6 +47,7 @@
 /** @
   * @defgroup SPI_BaudSpeed 
   */ 
+#define SPI_BaudRatePrescaler_1               0
 #define SPI_BaudRatePrescaler_2               1
 #define SPI_BaudRatePrescaler_4               2
 #define SPI_BaudRatePrescaler_8               3
@@ -54,7 +55,8 @@
 #define SPI_BaudRatePrescaler_32              5
 #define SPI_BaudRatePrescaler_64              6
 #define SPI_BaudRatePrescaler_128             7
-#define IS_SPI_BAUDRATE_PRESCALER(PRESCALER)  (((PRESCALER) == SPI_BaudRatePrescaler_2) || \
+#define IS_SPI_BAUDRATE_PRESCALER(PRESCALER)  (((PRESCALER) == SPI_BaudRatePrescaler_1) || \
+                                               ((PRESCALER) == SPI_BaudRatePrescaler_2) || \
                                                ((PRESCALER) == SPI_BaudRatePrescaler_4) || \
                                                ((PRESCALER) == SPI_BaudRatePrescaler_8) || \
                                                ((PRESCALER) == SPI_BaudRatePrescaler_16) || \