add select_mcu.cmake

Author: mean

select_mcu.cmake

@@ -0,0 +1,28 @@
+OPTION(USE_GD32F103   "Use GD32F103 MCU" FALSE) 
+OPTION(USE_GD32F303   "Use GD32F303 MCU" FALSE) 
+# Select platform and installation for extra arduino files AND toolchain (compiler...)
+SET(PLATFORM_ARCHITECTURE "STM32F1")
+IF(USE_GD32F103 OR USE_GD32F303)
+    SET(MCU_SPEED             96000000)                 # Max speed, above 96M USB will not work (?)
+ENDIF(USE_GD32F103 OR USE_GD32F303)
+
+# Board setup
+IF(USE_GD32F103)
+    SET(EXTENSION             "GD32F103")
+    set(X_ARDUINO_DEFAULT_BOARD genericGD32F103C)        # Default Board ID, when not specified
+    set(X_ARDUINO_CPU           GD32F103C8)
+    ADD_DEFINITIONS("-DHIGH_SPEED_ADC")
+    SET(X_ARDUINO_UPLOAD_METHOD BMP) # Use blackmagic link, if you comment it out you'll use DFU => 8kB flash
+ELSEIF(USE_GD32F303)
+    SET(EXTENSION             "GD32F303")
+    set(X_ARDUINO_DEFAULT_BOARD genericGD32F303C)        # Default Board ID, when not specified
+    set(X_ARDUINO_CPU           GD32F303C8)
+    ADD_DEFINITIONS("-DHIGH_SPEED_ADC")
+    SET(X_ARDUINO_UPLOAD_METHOD BMP) # Use blackmagic link, if you comment it out you'll use DFU => 8kB flash
+ELSE()
+    SET(EXTENSION             "STM32F103")
+    set(X_ARDUINO_LD_FILE      jtag)      # Use that instead of default jtag-c8 to get the full 128 kB
+    set(X_ARDUINO_DEFAULT_BOARD genericSTM32F103C)        # Default Board ID, when not specified
+    set(X_ARDUINO_CPU           STM32F103C8)
+    SET(X_ARDUINO_UPLOAD_METHOD BMP) # Use blackmagic link, if you comment it out you'll use DFU => 8kB flash
+ENDIF(USE_GD32F103)