diff --git a/hw/bsp/ch32v307/boards/CH32V307V-R1-1v0/debug_uart.c b/hw/bsp/ch32v307/boards/CH32V307V-R1-1v0/debug_uart.c
index 416782d0e..ad8b32957 100644
--- a/hw/bsp/ch32v307/boards/CH32V307V-R1-1v0/debug_uart.c
+++ b/hw/bsp/ch32v307/boards/CH32V307V-R1-1v0/debug_uart.c
@@ -75,7 +75,7 @@ void uart_sync(void)
 }
 
 
-void USART_Printf_Init(uint32_t baudrate)
+void usart_printf_init(uint32_t baudrate)
 {
     GPIO_InitTypeDef  GPIO_InitStructure;
     USART_InitTypeDef USART_InitStructure;
diff --git a/hw/bsp/ch32v307/boards/CH32V307V-R1-1v0/debug_uart.h b/hw/bsp/ch32v307/boards/CH32V307V-R1-1v0/debug_uart.h
index 4348438bb..a7e070585 100644
--- a/hw/bsp/ch32v307/boards/CH32V307V-R1-1v0/debug_uart.h
+++ b/hw/bsp/ch32v307/boards/CH32V307V-R1-1v0/debug_uart.h
@@ -28,4 +28,4 @@
 
 void uart_write(char c);
 void uart_sync(void);
-void USART_Printf_Init(uint32_t baudrate);
+void usart_printf_init(uint32_t baudrate);
diff --git a/hw/bsp/ch32v307/ch32v30x_it.h b/hw/bsp/ch32v307/ch32v30x_it.h
index 6475c5f11..42f285edf 100644
--- a/hw/bsp/ch32v307/ch32v30x_it.h
+++ b/hw/bsp/ch32v307/ch32v30x_it.h
@@ -10,7 +10,7 @@
 #ifndef __CH32V30x_IT_H
 #define __CH32V30x_IT_H
 
-#include "debug.h"
+// #include "debug.h"
 
 
 #endif /* __CH32V30x_IT_H */
diff --git a/hw/bsp/ch32v307/family.c b/hw/bsp/ch32v307/family.c
index 428466ad7..0260918ab 100644
--- a/hw/bsp/ch32v307/family.c
+++ b/hw/bsp/ch32v307/family.c
@@ -68,7 +68,7 @@ void board_init(void) {
   SysTick_Config(SystemCoreClock / 1000);
 #endif
 
-	USART_Printf_Init(115200);
+	usart_printf_init(115200);
 
   RCC_USBCLK48MConfig(RCC_USBCLK48MCLKSource_USBPHY);
   RCC_USBHSPLLCLKConfig(RCC_HSBHSPLLCLKSource_HSE);
diff --git a/hw/bsp/ch32v307/family.mk b/hw/bsp/ch32v307/family.mk
index ffc992f21..93370fc57 100644
--- a/hw/bsp/ch32v307/family.mk
+++ b/hw/bsp/ch32v307/family.mk
@@ -30,9 +30,6 @@ CFLAGS += \
 	-Xlinker --gc-sections \
 	-DBOARD_TUD_MAX_SPEED=OPT_MODE_HIGH_SPEED
 
-# caused by extra void USART_Printf_Init() in debug_uart.h and EVT/EXAME/SRC/DEBUG/debug.h
-CFLAGS += -Wno-error=redundant-decls
-
 LDFLAGS += \
   -Xlinker --gc-sections --specs=nano.specs --specs=nosys.specs
 
@@ -49,8 +46,7 @@ SRC_S += \
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(CH32V307_SDK_SRC)/Peripheral/inc \
-	$(TOP)/$(CH32V307_SDK_SRC)/Debug
+	$(TOP)/$(CH32V307_SDK_SRC)/Peripheral/inc
 
 # For freeRTOS port source
 FREERTOS_PORT = RISC-V