#| Set the Compilers (must be set first)
include( CMakeForceCompiler )
-cmake_force_c_compiler ( arm-none-eabi-gcc ARMCCompiler )
-cmake_force_cxx_compiler( arm-none-eabi-g++ ARMCxxCompiler )
-set( _CMAKE_TOOLCHAIN_PREFIX arm-none-eabi- )
+message( STATUS "Compiler Selected:" )
+if ( "${COMPILER}" MATCHES "gcc" )
+ cmake_force_c_compiler ( arm-none-eabi-gcc ARMCCompiler )
+ cmake_force_cxx_compiler( arm-none-eabi-g++ ARMCxxCompiler )
+ set( _CMAKE_TOOLCHAIN_PREFIX arm-none-eabi- )
+ message( "gcc" )
+elseif ( "${COMPILER}" MATCHES "clang" )
+ cmake_force_c_compiler ( clang ARMCCompiler )
+ cmake_force_cxx_compiler( clang++ ARMCxxCompiler )
+ set( _CMAKE_TOOLCHAIN_PREFIX llvm- )
+ message( "clang" )
+else ()
+ message( AUTHOR_WARNING "COMPILER: ${COMPILER} - Unknown compiler selection" )
+endif ()
#| Chip Name (Linker)
#|
-#| "mk20dx128" # Teensy 3.0 and McHCK mk20dx128
+#| "mk20dx128vlf5" # McHCK / Kiibohd-dfu
+#| "mk20dx256vlh7" # Kiibohd-dfu
+#| "mk20dx128" # Teensy 3.0
#| "mk20dx256" # Teensy 3.1
message( STATUS "Chip Selected:" )
set( MCU "${CHIP}" ) # For loading script compatibility
-#| Chip Size Database
-#| MCHCK Based
+#| Chip Size and CPU Frequency Database
+#| Processor frequency.
+#| Normally the first thing your program should do is set the clock prescaler,
+#| so your program will run at the correct speed. You should also set this
+#| variable to same clock speed. The _delay_ms() macro uses this, and many
+#| examples use this variable to calculate timings. Do not add a "UL" here.
+#| MCHCK Based / Kiibohd-dfu
if ( "${CHIP}" MATCHES "mk20dx128vlf5" )
set( SIZE_RAM 16384 )
set( SIZE_FLASH 126976 )
+ set( F_CPU "48000000" )
+
+#| Kiibohd-dfu
+elseif ( "${CHIP}" MATCHES "mk20dx256vlh7" )
+ set( SIZE_RAM 65536 )
+ set( SIZE_FLASH 253952 )
+ set( F_CPU "72000000" )
#| Teensy 3.0
elseif ( "${CHIP}" MATCHES "mk20dx128" )
set( SIZE_RAM 16384 )
set( SIZE_FLASH 131072 )
+ set( F_CPU "48000000" )
#| Teensy 3.1
elseif ( "${CHIP}" MATCHES "mk20dx256" )
set( SIZE_RAM 65536 )
set( SIZE_FLASH 262144 )
+ set( F_CPU "48000000" ) # XXX Also supports 72 MHz, but may requires code changes
#| Unknown ARM
else ()
#| USB Defines, this is how the loader programs detect which type of chip base is used
-if ( "${CHIP}" MATCHES "mk20dx128vlf5" )
+message( STATUS "Bootloader Type:" )
+if ( "${CHIP}" MATCHES "mk20dx128vlf5" OR "${CHIP}" MATCHES "mk20dx256vlh7" )
set( VENDOR_ID "0x1C11" )
set( PRODUCT_ID "0xB04D" )
set( BOOT_VENDOR_ID "0x1C11" )
set( BOOT_PRODUCT_ID "0xB007" )
+ set( BOOT_DFU_ALTNAME "Kiibohd DFU" )
set( DFU 1 )
+ message( "dfu" )
elseif ( "${CHIP}" MATCHES "mk20dx128" OR "${CHIP}" MATCHES "mk20dx256" )
set( VENDOR_ID "0x1C11" )
set( PRODUCT_ID "0xB04D" )
set( BOOT_VENDOR_ID "0x16c0" ) # TODO Double check, this is likely incorrect
set( BOOT_PRODUCT_ID "0x0487" )
set( TEENSY 1 )
+ message( "Teensy" )
endif ()
#| -f...: tuning, see GCC manual
#| NOTE: -fshort-wchar is specified to allow USB strings be passed conveniently
if( BOOTLOADER )
- set( TUNING "-D_bootloader_ -Wno-main -msoft-float -mthumb -fplan9-extensions -ffunction-sections -fdata-sections -fno-builtin -fstrict-volatile-bitfields -flto -fno-use-linker-plugin" )
+ set( TUNING "-D_bootloader_ -Wno-main -msoft-float -mthumb -fplan9-extensions -ffunction-sections -fdata-sections -fno-builtin -fstrict-volatile-bitfields -flto -fno-use-linker-plugin -nostdlib" )
#set( TUNING "-mthumb -fdata-sections -ffunction-sections -fno-builtin -msoft-float -fstrict-volatile-bitfields -flto -fno-use-linker-plugin -fwhole-program -Wno-main -nostartfiles -fplan9-extensions -D_bootloader_" )
+elseif ( "${COMPILER}" MATCHES "clang" )
+ set( TUNING "-target arm-none-eabi -mthumb -nostdlib -fdata-sections -ffunction-sections -fshort-wchar -fno-builtin" )
else()
set( TUNING "-mthumb -nostdlib -fdata-sections -ffunction-sections -fshort-wchar -fno-builtin -nostartfiles" )
endif()
set( OPT "s" )
-#| Processor frequency.
-#| Normally the first thing your program should do is set the clock prescaler,
-#| so your program will run at the correct speed. You should also set this
-#| variable to same clock speed. The _delay_ms() macro uses this, and many
-#| examples use this variable to calculate timings. Do not add a "UL" here.
-set( F_CPU "48000000" )
-
-
#| Dependency Files
#| Compiler flags to generate dependency files.
set( GENDEPFLAGS "-MMD" )
if( BOOTLOADER )
# Bootloader linker flags
set( LINKER_FLAGS "${TUNING} -Wl,--gc-sections -fwhole-program -T${CMAKE_CURRENT_SOURCE_DIR}/../Lib/${CHIP}.bootloader.ld -nostartfiles -Wl,-Map=link.map" )
- #set( LINKER_FLAGS "-Wl,-Map=link.map,--cref -Wl,--gc-sections -Wl,--no-wchar-size-warning -T${CMAKE_CURRENT_SOURCE_DIR}/../Lib/${CHIP}.bootloader.ld" )
else()
# Normal linker flags
- set( LINKER_FLAGS "-Wl,-Map=link.map,--cref -Wl,--gc-sections -Wl,--no-wchar-size-warning -T${CMAKE_CURRENT_SOURCE_DIR}/Lib/${CHIP}.ld" )
+ set( LINKER_FLAGS "${TUNING} -Wl,-Map=link.map,--cref -Wl,--gc-sections -Wl,--no-wchar-size-warning -T${CMAKE_CURRENT_SOURCE_DIR}/Lib/${CHIP}.ld" )
endif()
#| Lss Flags
-set( LSS_FLAGS -h -S -z )
+if ( "${COMPILER}" MATCHES "clang" )
+ set( LSS_FLAGS -section-headers -triple=arm-none-eabi )
+else ()
+ set( LSS_FLAGS -h -S -z )
+endif ()