diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 8732345..f60cdf4 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -5,6 +5,10 @@ add_subdirectory(peripheral)
 add_subdirectory(system)
 add_subdirectory(startup)
 
+add_library(isr SHARED
+    ch32v20x_it.c     
+)
+
 add_executable(main
     main.c 
     ch32v20x_it.c
@@ -13,27 +17,26 @@ add_executable(main
 target_link_libraries(main 
     core_riscv
     system_ch32v20x 
-    #ch32v20x_adc 
-    #ch32v20x_can
-    #ch32v20x_dbgmcu
-    #ch32v20x_exti
-    #ch32v20x_gpio
-    #ch32v20x_i2c
-    #ch32v20x_misc
-    #ch32v20x_pwr
-    #ch32v20x_rtc
-    #ch32v20x_tim
-    #ch32v20x_usb
-    #ch32v20x_bkp
-    #ch32v20x_crc
-    #ch32v20x_dma
-    #ch32v20x_flash
-    #ch32v20x_iwdg
-    #ch32v20x_opa
-    #ch32v20x_rcc
-    #ch32v20x_spi
-    #ch32v20x_usart
-    #ch32v20x_wwdg
+    debug
+    ch32v20x_adc 
+    ch32v20x_can
+    ch32v20x_dbgmcu
+    ch32v20x_exti
+    ch32v20x_gpio
+    ch32v20x_i2c
+    ch32v20x_misc
+    ch32v20x_pwr
+    ch32v20x_rtc
+    ch32v20x_tim
+    ch32v20x_usb
+    ch32v20x_bkp
+    ch32v20x_crc
+    ch32v20x_dma
+    ch32v20x_flash
+    ch32v20x_iwdg
+    ch32v20x_opa
+    ch32v20x_rcc
+    ch32v20x_spi
+    ch32v20x_usart
+    ch32v20x_wwdg
 )
-
-