diff --git a/Inc/board_config.h b/Inc/board_config.h
index 558409a..13fc6c9 100644
--- a/Inc/board_config.h
+++ b/Inc/board_config.h
@@ -56,21 +56,21 @@ void usart1_irq_handler(void);
 
 /******************************************************************************/
 
+#define LED_RCU              RCU_GPIOA
 #define LED_PORT             GPIOA
 #define LED_PIN              GPIO_PIN_7
-#define LED_RCU              RCU_GPIOA
 
 /******************************************************************************/
 
 #define RS485_RCU            (g_usart_config.rcu_usart)
+#define RS485_PHY            (g_usart_config.usart_periph)
+#define RS485_IRQ            (g_usart_config.irq_type)
 #define RS485_GPIO_RCU       RCU_GPIOA
 #define RS485_GPIO_PORT      GPIOA
+#define RS485_EN_PIN         GPIO_PIN_1
 #define RS485_TX_PIN         GPIO_PIN_2
 #define RS485_RX_PIN         GPIO_PIN_3
-#define RS485_PHY            (g_usart_config.usart_periph)
 #define RS485_BAUDRATE       115200U
-#define RS485_EN_PIN         GPIO_PIN_1
-#define RS485_IRQ            (g_usart_config.irq_type)
 
 /******************************************************************************/
 
diff --git a/LD/gd32e23x_flash.ld b/LD/gd32e23x_flash.ld
index f48d452..405de65 100644
--- a/LD/gd32e23x_flash.ld
+++ b/LD/gd32e23x_flash.ld
@@ -12,8 +12,8 @@ _Min_Stack_Size = 0x400; /* required amount of stack */
 /* Memories definition */
 MEMORY
 {
-    FLASH (rx)  : ORIGIN = 0x08000000, LENGTH = 64K
-    RAM (xrw)   : ORIGIN = 0x20000000, LENGTH = 8K
+    FLASH (rx)  : ORIGIN = 0x08000000, LENGTH = 16K
+    RAM (xrw)   : ORIGIN = 0x20000000, LENGTH = 4K
 }
 
 /* Sections */