DO NOT USE Merge branch 'master' into debounce_refactor
[jackhill/qmk/firmware.git] / quantum / mcu_selection.mk
1
2 ifneq ($(findstring STM32F303, $(MCU)),)
3 ## chip/board settings
4 # - the next two should match the directories in
5 # <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
6 MCU_FAMILY ?= STM32
7 MCU_SERIES ?= STM32F3xx
8
9 # Linker script to use
10 # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
11 # or <this_dir>/ld/
12 MCU_LDSCRIPT ?= STM32F303xC
13
14 # Startup code to use
15 # - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
16 MCU_STARTUP ?= stm32f3xx
17
18 # Board: it should exist either in <chibios>/os/hal/boards/
19 # or <this_dir>/boards
20 BOARD ?= GENERIC_STM32_F303XC
21
22 # Cortex version
23 MCU = cortex-m4
24
25 # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
26 ARMV ?= 7
27
28 USE_FPU = yes
29
30 # Vector table for application
31 # 0x00000000-0x00001000 area is occupied by bootlaoder.*/
32 # The CORTEX_VTOR... is needed only for MCHCK/Infinity KB
33 # OPT_DEFS = -DCORTEX_VTOR_INIT=0x08005000
34
35 # Options to pass to dfu-util when flashing
36 DFU_ARGS ?= -d 0483:df11 -a 0 -s 0x08000000:leave
37 endif
38
39 ifneq (,$(filter $(MCU),atmega32u4 at90usb1286))
40 # Processor frequency.
41 # This will define a symbol, F_CPU, in all source code files equal to the
42 # processor frequency in Hz. You can then use this symbol in your source code to
43 # calculate timings. Do NOT tack on a 'UL' at the end, this will be done
44 # automatically to create a 32-bit value in your source code.
45 #
46 # This will be an integer division of F_USB below, as it is sourced by
47 # F_USB after it has run through any CPU prescalers. Note that this value
48 # does not *change* the processor frequency - it should merely be updated to
49 # reflect the processor speed set externally so that the code can use accurate
50 # software delays.
51 F_CPU ?= 16000000
52
53 # LUFA specific
54 #
55 # Target architecture (see library "Board Types" documentation).
56 ARCH ?= AVR8
57
58 # Input clock frequency.
59 # This will define a symbol, F_USB, in all source code files equal to the
60 # input clock frequency (before any prescaling is performed) in Hz. This value may
61 # differ from F_CPU if prescaling is used on the latter, and is required as the
62 # raw input clock is fed directly to the PLL sections of the AVR for high speed
63 # clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
64 # at the end, this will be done automatically to create a 32-bit value in your
65 # source code.
66 #
67 # If no clock division is performed on the input clock inside the AVR (via the
68 # CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
69 F_USB ?= $(F_CPU)
70 endif