[bsp/wch/arm/ch32f103c8-core]:add BSP_USING_TIM to fix compile error if no select hwtimer.

bsp/wch/arm/ch32f103c8-core/.config

@@ -673,18 +673,13 @@ CONFIG_SOC_CH32F103C8=y
 # On-chip Peripheral Drivers
 #
 CONFIG_BSP_USING_UART=y
-CONFIG_BSP_USING_UART1=y
+# CONFIG_BSP_USING_UART1 is not set
 CONFIG_BSP_USING_UART2=y
-CONFIG_BSP_USING_UART3=y
-CONFIG_BSP_USING_SPI=y
-CONFIG_BSP_USING_SPI1=y
-CONFIG_BSP_USING_SPI2=y
-CONFIG_BSP_USING_HWI2C=y
-CONFIG_BSP_USING_HWI2C1=y
-CONFIG_BSP_USING_HWI2C2=y
-CONFIG_BSP_USING_IWDT=y
-CONFIG_BSP_USING_RTC=y
-CONFIG_BSP_USING_RTC_LSI=y
+# CONFIG_BSP_USING_UART3 is not set
+# CONFIG_BSP_USING_SPI is not set
+# CONFIG_BSP_USING_HWI2C is not set
+# CONFIG_BSP_USING_IWDT is not set
+# CONFIG_BSP_USING_RTC is not set
 CONFIG_LSI_VALUE=40000
 # CONFIG_BSP_USING_TIM is not set
 

bsp/wch/arm/ch32f103c8-core/board/board.c

@@ -200,6 +200,7 @@ void ch32f1_i2c_config(I2C_TypeDef *i2cx)
     }
 }
 
+#ifdef BSP_USING_TIM
 void ch32f1_tim_clock_init(TIM_TypeDef *timx)
 {
     if (timx == TIM1)
@@ -434,3 +435,4 @@ void ch32f1_pwm_io_init(TIM_TypeDef *timx, rt_uint8_t channel)
         }
     }
 }
+#endif

bsp/wch/arm/ch32f103c8-core/rtconfig.h

@@ -209,18 +209,7 @@
 /* On-chip Peripheral Drivers */
 
 #define BSP_USING_UART
-#define BSP_USING_UART1
 #define BSP_USING_UART2
-#define BSP_USING_UART3
-#define BSP_USING_SPI
-#define BSP_USING_SPI1
-#define BSP_USING_SPI2
-#define BSP_USING_HWI2C
-#define BSP_USING_HWI2C1
-#define BSP_USING_HWI2C2
-#define BSP_USING_IWDT
-#define BSP_USING_RTC
-#define BSP_USING_RTC_LSI
 #define LSI_VALUE 40000
 
 /* Onboard Peripheral Drivers */