Archived
1
0
This repo is archived. You can view files and clone it, but cannot push or open issues or pull requests.
controller/Lib/CMake/avr.cmake

149 lines
3.6 KiB
CMake
Raw Normal View History

###| CMAKE Kiibohd Controller |###
#
# Jacob Alexander 2011-2014
# Due to this file's usefulness:
#
# Released into the Public Domain
#
# avr-gcc CMake Build Configuration
#
###
#| Set the Compilers (must be set first)
include( CMakeForceCompiler )
cmake_force_c_compiler ( avr-gcc AVRCCompiler )
cmake_force_cxx_compiler( avr-g++ AVRCxxCompiler )
2014-04-19 04:58:14 +00:00
set( _CMAKE_TOOLCHAIN_PREFIX avr- )
###
# Atmel Defines and Linker Options
#
#| MCU Name
#|
#| "at90usb162" # Teensy 1.0
#| "atmega32u4" # Teensy 2.0
#| "at90usb646" # Teensy++ 1.0
#| "at90usb1286" # Teensy++ 2.0
set( MCU "${CHIP}" )
message( STATUS "MCU Selected:" )
message( "${MCU}" )
#| Chip Size Database
#| Teensy 1.0
if ( "${CHIP}" MATCHES "at90usb162" )
set( SIZE_RAM 512 )
set( SIZE_FLASH 15872 )
#| Teensy 2.0
elseif ( "${CHIP}" MATCHES "atmega32u4" )
set( SIZE_RAM 2560 )
set( SIZE_FLASH 32256 )
#| Teensy++ 1.0
elseif ( "${CHIP}" MATCHES "at90usb646" )
set( SIZE_RAM 4096 )
set( SIZE_FLASH 64512 )
#| Teensy++ 2.0
elseif ( "${CHIP}" MATCHES "at90usb1286" )
set( SIZE_RAM 8192 )
set( SIZE_FLASH 130048 )
#| Unknown AVR
else ()
message( AUTHOR_WARNING "CHIP: ${CHIP} - Unknown AVR microcontroller" )
endif ()
#| Extra Compiler Sources
#| Mostly for convenience functions like interrupt handlers
set( COMPILER_SRCS
# XXX Not needed for avr-gcc
)
#| CPU Type
#| This is only informational for AVR microcontrollers
#| The field can be determined by the microcontroller chip, but currently only one CPU type is used atm
set( CPU "megaAVR" )
message( STATUS "CPU Selected:" )
message( "${CPU}" )
#| USB Defines
set( VENDOR_ID "0x16C0" )
set( PRODUCT_ID "0x047D" )
#| Compiler flag to set the C Standard level.
#| c89 = "ANSI" C
#| gnu89 = c89 plus GCC extensions
#| c99 = ISO C99 standard (not yet fully implemented)
#| gnu99 = c99 plus GCC extensions
set( CSTANDARD "-std=gnu99" )
#| Warning Options
#| -Wall...: warning level
set( WARN "-Wall" )
#| Tuning Options
#| -f...: tuning, see GCC manual and avr-libc documentation
#| NOTE: -fshort-wchar is specified to allow USB strings be passed conveniently
set( TUNING "-funsigned-char -funsigned-bitfields -ffunction-sections -fpack-struct -fshort-enums" )
#| Optimization level, can be [0, 1, 2, 3, s].
#| 0 = turn off optimization. s = optimize for size.
#| (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
set( OPT "s" )
#| Output Format
#| srec, ihex, binary
set( FORMAT "ihex" )
#| 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 "16000000" )
#| Dependency Files
#| Compiler flags to generate dependency files.
set( GENDEPFLAGS "-MMD -MP" )
#| Compiler Flags
add_definitions( "-mmcu=${MCU} -DF_CPU=${F_CPU} -D_${MCU}_=1 -O${OPT} ${TUNING} ${WARN} ${CSTANDARD} ${GENDEPFLAGS}" )
#| Linker Flags
set( LINKER_FLAGS "-mmcu=${MCU} -Wl,-Map=link.map,--cref -Wl,--relax -Wl,--gc-sections" )
#| Hex Flags (XXX, CMake seems to have issues if you quote the arguments for the custom commands...)
set( HEX_FLAGS -O ${FORMAT} -R .eeprom -R .fuse -R .lock -R .signature )
#| Eep Flags (XXX, I've removed this target from the builds, but keeping the set line as a note)
set( EEP_FLAGS -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 --no-change-warnings -O ${FORMAT} )
#| Lss Flags
set( LSS_FLAGS -h -S -z )