a34da53c30
DMAMUX peripheral is a dma request router/trigger, present on g0, wb, h7 and l4+. Basically it allows to easily map peripheral requests to whatever dma channel we want to use (similarily to the DMA_CSELR register, but without limitation) but, it also also adds some clever dma request synchronization and even some dma request generation logic via internal request generator "channels", allowing some requests chaining, or triggering reqs from non dma capable peripherals. nb: g0 only features 1 dmamux bloc, supports 7 irq and 4 generators, l4+ supports 13 dma channels and 3 generators and h7 has two dmamuxes, with support for the 15 dma channels and 7 generators - so as much CxCR and RGxCR register - but they are bit to bit compatible - excluding of course the sync/sig and dma requests id mappings. btw, currently, request generator channels are defined in common header, but maybe we should define them in device header ? or we dont care (like for dma channels, only defined in dma_f24 but not for other devices ?). See ST AN5224 for more information
56 lines
1.7 KiB
Makefile
56 lines
1.7 KiB
Makefile
##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2019 Guillaume Revaillot <g.revaillot@gmail.com>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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LIBNAME = libopencm3_stm32g0
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SRCLIBDIR ?= ../..
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CC = $(PREFIX)gcc
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AR = $(PREFIX)ar
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TGT_CFLAGS = -Os \
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-Wall -Wextra -Wimplicit-function-declaration \
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-Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes \
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-Wundef -Wshadow \
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-I../../../include -fno-common \
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-mcpu=cortex-m0plus -mthumb $(FP_FLAGS) \
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-ffunction-sections -fdata-sections -MD -DSTM32G0
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TGT_CFLAGS += $(DEBUG_FLAGS)
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TGT_CFLAGS += $(STANDARD_FLAGS)
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ARFLAGS = rcs
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OBJS += crc_common_all.o
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OBJS += dma_common_l1f013.o
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OBJS += dmamux.o
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OBJS += exti.o exti_common_all.o
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OBJS += flash.o flash_common_all.o
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OBJS += gpio_common_all.o gpio_common_f0234.o
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OBJS += i2c_common_v2.o
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OBJS += iwdg_common_all.o
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OBJS += lptimer_common_all.o
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OBJS += pwr.o
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OBJS += rcc.o rcc_common_all.o
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OBJS += rng_common_v1.o
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OBJS += spi_common_all.o spi_common_v1.o spi_common_v1_frf.o
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OBJS += timer_common_all.o
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OBJS += usart_common_all.o usart_common_v2.o
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VPATH +=../:../../cm3:../common
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include ../../Makefile.include
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