diff --git a/src/peripheral/CMakeLists.txt b/src/peripheral/CMakeLists.txt
index b7531a3..3e7056d 100644
--- a/src/peripheral/CMakeLists.txt
+++ b/src/peripheral/CMakeLists.txt
@@ -12,117 +12,140 @@
 add_library(ch32v20x_adc SHARED
     src/ch32v20x_adc.c
 )
-
 target_include_directories(ch32v20x_adc PUBLIC ./inc)
 
 
 add_library(ch32v20x_xxx SHARED
     src/ch32v20x_xxx.c
 )
-
 target_include_directories(ch32v20x_xxx PUBLIC ./inc)
 
 
 add_library(ch32v20x_can SHARED
     src/ch32v20x_can.c
 )
-
 target_include_directories(ch32v20x_can PUBLIC ./inc)
 
 
 add_library(ch32v20x_dbgmcu SHARED
     src/ch32v20x_dbgmcu.c
 )
-
 target_include_directories(ch32v20x_dbgmcu PUBLIC ./inc)
 
+
 add_library(ch32v20x_exti SHARED
     src/ch32v20x_exti.c
 )
-
 target_include_directories(ch32v20x_exti PUBLIC ./inc)
 
+
 add_library(ch32v20x_gpio SHARED
     src/ch32v20x_gpio.c
 )
-
 target_include_directories(ch32v20x_gpio PUBLIC ./inc)
 
 
 add_library(ch32v20x_i2c SHARED
     src/ch32v20x_i2c.c
 )
-
 target_include_directories(ch32v20x_i2c PUBLIC ./inc)
 
 
 add_library(ch32v20x_misc SHARED
     src/ch32v20x_misc.c
 )
-
 target_include_directories(ch32v20x_misc PUBLIC ./inc)
 
 
 add_library(ch32v20x_pwr SHARED
     src/ch32v20x_pwr.c
 )
-
 target_include_directories(ch32v20x_pwr PUBLIC ./inc)
 
 
 add_library(ch32v20x_rtc SHARED
     src/ch32v20x_rtc.c
 )
-
 target_include_directories(ch32v20x_rtc PUBLIC ./inc)
 
 
 add_library(ch32v20x_tim SHARED
     src/ch32v20x_tim.c
 )
-
 target_include_directories(ch32v20x_tim PUBLIC ./inc)
 
 
 add_library(ch32v20x_usb SHARED
     src/ch32v20x_usb.c
 )
-
 target_include_directories(ch32v20x_usb PUBLIC ./inc)
 
 
 add_library(ch32v20x_bkp SHARED
     src/ch32v20x_bkp.c
 )
-
 target_include_directories(ch32v20x_bkp PUBLIC ./inc)
 
 
 add_library(ch32v20x_crc SHARED
     src/ch32v20x_crc.c
 )
-
 target_include_directories(ch32v20x_crc PUBLIC ./inc)
 
 
 add_library(ch32v20x_dma SHARED
     src/ch32v20x_dma.c
 )
-
 target_include_directories(ch32v20x_dma PUBLIC ./inc)
 
 
 add_library(ch32v20x_flash SHARED
     src/ch32v20x_flash.c
 )
-
 target_include_directories(ch32v20x_flash PUBLIC ./inc)
 
 
-add_library(ch32v20x SHARED
-    src/ch32v20x.c
+add_library(ch32v20x_flash SHARED
+    src/ch32v20x_flash.c
 )
 
+
+add_library(ch32v20x_iwdg SHARED
+    src/ch32v20x_iwdg.c
+)
+target_include_directories(ch32v20x_iwdg PUBLIC ./inc)
+
+
+add_library(ch32v20x_opa SHARED
+    src/ch32v20x_opa.c
+)
+target_include_directories(ch32v20x_opa PUBLIC ./inc)
+
+
+add_library(ch32v20x_rcc SHARED
+    src/ch32v20x_rcc.c
+)
+target_include_directories(ch32v20x_rcc PUBLIC ./inc)
+
+
+add_library(ch32v20x_spi SHARED
+    src/ch32v20x_spi.c
+)
+target_include_directories(ch32v20x_spi PUBLIC ./inc)
+
+
+add_library(ch32v20x_usart SHARED
+    src/ch32v20x_usart.c
+)
+target_include_directories(ch32v20x_usart PUBLIC ./inc)
+
+
+add_library(ch32v20x_wwdg SHARED
+    src/ch32v20x_wwdg.c
+)
+target_include_directories(ch32v20x_wwdg PUBLIC ./inc)
+
+
 # This one doesn't have source code.
 #target_include_directories(ch32v20x PUBLIC ./inc)
 #