diff --git a/ch32v20x-toolchain.cmake b/ch32v20x-toolchain.cmake
new file mode 100644
index 0000000..5fc6f0e
--- /dev/null
+++ b/ch32v20x-toolchain.cmake
@@ -0,0 +1,31 @@
+# ###############################
+# CH32V20X toolchain file 
+# ###############################
+
+# Specify the cross-compiler
+set(CMAKE_SYSTEM_NAME Generic)
+set(CMAKE_SYSTEM_VERSION 1)
+set(CMAKE_SYSTEM_PROCESSOR riscv)
+
+set(MCU ch32v203) # 
+set(F_CPU 144000000UL)
+set(PROGRAMMER wlink)
+
+# Define the toolchain executables
+set(TRIPPLE riscv-none-elf)
+set(CMAKE_C_COMPILER ${TRIPPLE}-gcc)
+set(CMAKE_CXX_COMPILER ${TRIPPLE}-g++)
+set(CMAKE_ASM_COMPILER ${TRIPPLE}-gcc)
+set(CMAKE_LINKER ${TRIPPLE}-ld)
+set(CMAKE_OBJCOPY ${TRIPPLE}-objcopy)
+set(CMAKE_SIZE ${TRIPPLE}-size)
+
+# Define compile options
+set(CMAKE_C_FLAGS " -Os -mmcu=${AVR_MCU} -DF_CPU=${F_CPU}")
+set(CMAKE_CXX_FLAGS "-mmcu=${AVR_MCU} -DF_CPU=${F_CPU}")
+set(CMAKE_EXE_LINKER_FLAGS_INIT "-mmcu=${AVR_MCU}")
+
+
+# Define the archiver and other tools
+set(CMAKE_AR avr-ar)
+set(CMAKE_RANLIB avr-ranlib)