Added cdcacm example.

Igor-Misic · Jan 11, 2019 · 91c60ea · 91c60ea
1 parent bef656c
commit 91c60ea
Show file tree

Hide file tree

Showing 5 changed files with 460 additions and 0 deletions.
diff --git a/usb_cdcacm/.cproject b/usb_cdcacm/.cproject
@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
+
+    <storageModule moduleId="org.eclipse.cdt.core.settings">
+
+        <cconfiguration id="0.336201835">
+
+            <storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="0.336201835" moduleId="org.eclipse.cdt.core.settings" name="Default">
+
+                <externalSettings/>
+
+                <extensions>
+
+                    <extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+
+                    <extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+
+                    <extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+
+                    <extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+
+                    <extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
+
+                    <extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+
+                </extensions>
+
+            </storageModule>
+
+            <storageModule moduleId="cdtBuildSystem" version="4.0.0">
+
+                <configuration buildProperties="" description="" id="0.336201835" name="Default" parent="org.eclipse.cdt.build.core.prefbase.cfg">
+
+                    <folderInfo id="0.336201835." name="/" resourcePath="">
+
+                        <toolChain id="org.eclipse.cdt.build.core.prefbase.toolchain.4934875" name="No ToolChain" resourceTypeBasedDiscovery="false" superClass="org.eclipse.cdt.build.core.prefbase.toolchain">
+
+                            <targetPlatform id="org.eclipse.cdt.build.core.prefbase.toolchain.4934875.1390769889" name=""/>
+
+                            <builder id="org.eclipse.cdt.build.core.settings.default.builder.1783548436" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Gnu Make Builder" superClass="org.eclipse.cdt.build.core.settings.default.builder"/>
+
+                            <tool id="org.eclipse.cdt.build.core.settings.holder.libs.32130587" name="holder for library settings" superClass="org.eclipse.cdt.build.core.settings.holder.libs"/>
+
+                            <tool id="org.eclipse.cdt.build.core.settings.holder.164009162" name="Assembly" superClass="org.eclipse.cdt.build.core.settings.holder">
+
+                                <inputType id="org.eclipse.cdt.build.core.settings.holder.inType.1397620196" languageId="org.eclipse.cdt.core.assembly" languageName="Assembly" sourceContentType="org.eclipse.cdt.core.asmSource" superClass="org.eclipse.cdt.build.core.settings.holder.inType"/>
+
+                            </tool>
+
+                            <tool id="org.eclipse.cdt.build.core.settings.holder.1412076175" name="GNU C++" superClass="org.eclipse.cdt.build.core.settings.holder">
+
+                                <inputType id="org.eclipse.cdt.build.core.settings.holder.inType.308634218" languageId="org.eclipse.cdt.core.g++" languageName="GNU C++" sourceContentType="org.eclipse.cdt.core.cxxSource,org.eclipse.cdt.core.cxxHeader" superClass="org.eclipse.cdt.build.core.settings.holder.inType"/>
+
+                            </tool>
+
+                            <tool id="org.eclipse.cdt.build.core.settings.holder.432055573" name="GNU C" superClass="org.eclipse.cdt.build.core.settings.holder">
+
+                                <inputType id="org.eclipse.cdt.build.core.settings.holder.inType.1035549476" languageId="org.eclipse.cdt.core.gcc" languageName="GNU C" sourceContentType="org.eclipse.cdt.core.cSource,org.eclipse.cdt.core.cHeader" superClass="org.eclipse.cdt.build.core.settings.holder.inType"/>
+
+                            </tool>
+
+                        </toolChain>
+
+                    </folderInfo>
+
+                </configuration>
+
+            </storageModule>
+
+            <storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
+
+        </cconfiguration>
+
+    </storageModule>
+
+    <storageModule moduleId="cdtBuildSystem" version="4.0.0">
+
+        <project id="Pixracer_Usb_cdcacm.null.1962491803" name="Pixracer_Usb_cdcacm"/>
+
+    </storageModule>
+
+    <storageModule moduleId="scannerConfiguration">
+
+        <autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
+
+        <scannerConfigBuildInfo instanceId="0.336201835">
+
+            <autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
+
+        </scannerConfigBuildInfo>
+
+    </storageModule>
+
+    <storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
+
+</cproject>
diff --git a/usb_cdcacm/.project b/usb_cdcacm/.project
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Pixracer_Usb_cdcacm</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
+			<triggers>clean,full,incremental,</triggers>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
+			<triggers>full,incremental,</triggers>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.cdt.core.cnature</nature>
+		<nature>org.eclipse.cdt.core.ccnature</nature>
+		<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
+		<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
+	</natures>
+</projectDescription>
diff --git a/usb_cdcacm/Makefile b/usb_cdcacm/Makefile
@@ -0,0 +1,62 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2018 Igor Mišić <igy1000mb@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/>.
+##
+
+FP_FLAGS	?= -mfloat-abi=hard -mfpu=fpv4-sp-d16
+ARCH_FLAGS	= -mthumb -mcpu=cortex-m4 $(FP_FLAGS)
+
+IDIR=../libopencm3/include
+CC=arm-none-eabi-gcc
+CFLAGS=-I$(IDIR) -D STM32F4
+
+LIB_DIR=-L../libopencm3/lib
+LIBS=-lopencm3_stm32f4
+
+OPT			:= -Os
+DEBUG		:= -ggdb3
+CSTD		?= -std=gnu99
+LDSCRIPT 	?= ../stm32f4.ld
+
+###############################################################################
+# C flags
+
+TGT_CFLAGS	+= $(OPT) $(CSTD) $(DEBUG)
+TGT_CFLAGS	+= $(ARCH_FLAGS)
+TGT_CFLAGS	+= -Wextra -Wshadow -Wimplicit-function-declaration
+TGT_CFLAGS	+= -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
+TGT_CFLAGS	+= -fno-common -ffunction-sections -fdata-sections
+
+###############################################################################
+# Linker flags
+
+TGT_LDFLAGS		+= --static -nostartfiles
+TGT_LDFLAGS		+= -T$(LDSCRIPT)
+TGT_LDFLAGS		+= $(ARCH_FLAGS) $(DEBUG)
+TGT_LDFLAGS		+= -Wl,-Map=$(*).map -Wl,--cref
+TGT_LDFLAGS		+= -Wl,--gc-sections
+ifeq ($(V),99)
+TGT_LDFLAGS		+= -Wl,--print-gc-sections
+endif
+
+all:
+	$(CC) $(TGT_CFLAGS) $(CFLAGS) -c cdcacm.c
+	$(CC) cdcacm.o $(TGT_LDFLAGS) $(LIB_DIR) $(LIBS) -o cdcacm.elf 
+
+clean:
+	rm -f *.o *.elf
+
diff --git a/usb_cdcacm/README.md b/usb_cdcacm/README.md
@@ -0,0 +1,10 @@
+# README
+
+This example implements a USB CDC-ACM device (aka Virtual Serial Port)
+to demonstrate the use of the USB device stack.
+
+## Board connections
+
+| Port  | Function       | Description                               |
+| ----- | -------------- | ----------------------------------------- |
+| `CN6` | `(USB_OTG_HS)` | USB acting as device, connect to computer |