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##
## This file is part of the libopencm3 project.
##
## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
## Copyright (C) 2013 Alexandru Gagniuc <mr.nuke.me@gmail.com>
##
## This library is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## This library is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with this library. If not, see <http://www.gnu.org/licenses/>.
##
LIBNAME = libopencm3_stm32f7
SRCLIBDIR ?= ../..
PREFIX ?= arm-none-eabi
CC = $(PREFIX)-gcc
AR = $(PREFIX)-ar
# STM32F7 only supports single precision FPU
FP_FLAGS ?= -mfloat-abi=hard -mfpu=fpv5-sp-d16
TGT_CFLAGS = -Os \
-Wall -Wextra -Wimplicit-function-declaration \
-Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes \
-Wundef -Wshadow \
-I../../../include -fno-common \
-mcpu=cortex-m7 -mthumb $(FP_FLAGS) \
-Wstrict-prototypes \
-ffunction-sections -fdata-sections -MD -DSTM32F7
TGT_CFLAGS += $(DEBUG_FLAGS)
TGT_CFLAGS += $(STANDARD_FLAGS)
ARFLAGS = rcs
OBJS = flash_common_all.o flash_common_f.o flash_common_f24.o flash.o
OBJS += gpio.o gpio_common_all.o gpio_common_f0234.o
OBJS += pwr.o rcc.o
OBJS += rcc_common_all.o
OBJS += rng_common_v1.o
OBJS += spi_common_all.o spi_common_v1.o spi_common_v1_frf.o
OBJS += usart_common_all.o usart_common_v2.o
VPATH += ../../usb:../:../../cm3:../common
VPATH += ../../ethernet
###############################################################################
# Checking CPU support in the toolchain
###############################################################################
# TODO: This check and silent skip of build should be removed, when it will be
# sure that first compatible toolchain (g-a-e 4.8 2014q3) will be sufficiently
# penetrated in majority of user stations.
define MISSING_CPU
Your toolchain doesn't support -mcpu=cortex-m7.
Please use gcc-arm-embedded 4.8 2014q3 or newer. Skipping this sub-library.
endef
ifneq ($(shell $(CC) --help=target | grep -q '\<cortex-m7\>'; echo $$?),0)
$(warning $(MISSING_CPU))
all clean:
@true
$(SRCLIBDIR)/$(LIBNAME).a:
@true
else
include ../../Makefile.include
endif
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