Initial checkin of new m3dev repository.

This is based on the tree from http://code.google.com/p/m3dev/
and a bunch of patches from myself, Travis, and Erik that have
existed in various development branches in various places.  On top
of that I started overhauling the build system, ensured everything
actually works on the m3debug boards again (and you can use a
m3debug board to completely re-image another m3debug board), removed
some random personal projects that were included and further tidied
things up.

.gitignore

@@ -0,0 +1,8 @@
+.*
+*~
+out
+bin
+local.mk
+tags
+TAGS
+cscope.out

AUTHORS

@@ -0,0 +1,8 @@
+Brian Swetland <[email protected]>
+  Created this mess in the first place.  Trying to tidy it up a bit.
+
+Travis Geiselbrecht <[email protected]>
+  Build system wisdom, bugfixes, and the "super-m3debug" variant.
+
+Erik Gilling <[email protected]>
+  lpc134[567] support, library enhancements, and more bugfixes.

LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

Makefile

@@ -0,0 +1,82 @@
+## Copyright 2011 Brian Swetland <[email protected]>
+## 
+## Licensed under the Apache License, Version 2.0 (the "License");
+## you may not use this file except in compliance with the License.
+## You may obtain a copy of the License at
+##
+##     http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing, software
+## distributed under the License is distributed on an "AS IS" BASIS,
+## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+## See the License for the specific language governing permissions and
+## limitations under the License.
+
+what_to_build:: all
+
+-include local.mk
+
+TOOLCHAIN ?= arm-none-eabi-
+
+TARGET_CC := $(TOOLCHAIN)gcc
+TARGET_LD := $(TOOLCHAIN)ld
+TARGET_AR := $(TOOLCHAIN)ar
+TARGET_OBJCOPY := $(TOOLCHAIN)objcopy
+TARGET_OBJDUMP := $(TOOLCHAIN)objdump
+
+TARGET_CFLAGS := -g -Os -Wall
+TARGET_CFLAGS += -Wno-unused-but-set-variable
+TARGET_CFLAGS += -I. -Iinclude
+TARGET_CFLAGS += -mcpu=cortex-m3 -mthumb -mthumb-interwork
+TARGET_CFLAGS += -ffunction-sections -fdata-sections 
+TARGET_CFLAGS += -fno-builtin -nostdlib
+
+# tell gcc there's not a full libc it can depend on
+# so it won't do thinks like printf("...") -> puts("...")
+TARGET_CFLAGS += -ffreestanding
+TARGET_LFLAGS := --gc-sections
+
+#TARGET_LIBGCC := $(shell $(TARGET_CC) $(TARGET_CFLAGS) -print-libgcc-file-name)
+
+UNAME := $(shell uname)
+UNAME_M := $(shell uname -m)
+
+HOST_CFLAGS := -g -O1 -Wall
+HOST_CFLAGS += -Itools -Iinclude
+
+ifeq ($(UNAME),Darwin)
+HOST_CFLAGS += -I/opt/local/include -L/opt/local/lib
+HOST_LIBS += -lusb-1.0
+endif
+ifeq ($(UNAME),Linux)
+HOST_CFLAGS += -DWITH_THUMB2_DISASSEMBLE=1
+HOST_LIBS += -lusb-1.0
+endif
+
+OUT := out
+BIN := bin
+OUT_HOST_OBJ := $(OUT)/_obj/host
+OUT_TARGET_OBJ := $(OUT)/_obj/target
+
+ALL :=
+DEPS :=
+
+# build system internals
+include build/build.mk
+
+# architecture configurations
+include $(wildcard arch/*/config.mk)
+
+# additional modules
+include $(wildcard */module.mk)
+
+clean::
+	@echo clean
+	@rm -rf $(OUT) $(BIN)
+
+# we generate .d as a side-effect of compiling. override generic rule:
+%.d:
+-include $(DEPS)
+
+all:: $(ALL)
+

README

@@ -0,0 +1,95 @@
+
+===========================================================================
+          m3dev - tools for embedded ARM Cortex M3 development
+===========================================================================
+
+This project is a collection of (linux-centric) tools for working on
+small embedded systems based on the ARM Cortex M3 CPU.
+
+Original work was done with a STM32F103 part, and much more work has been
+done with LPC13xx series parts.
+
+Everything is either Apache 2 or BSD licensed, to allow for easy,
+no-strings-attached, inclusion in your own projects.  Share and enjoy!
+
+
+m3debug
+-------
+
+Firmware for the "m3debug" and "super-m3debug" boards which use the
+LPC1343 as an engine for the ARM Serial Wire Debug Protocol, in 
+conjunction with the debugger and gdb-bridge programs (described
+below).
+
+A schematic is provided for the original (pretty simplistic) m3debug
+board.
+
+
+swdp 
+----
+
+Firmware for the LeafLabs Maple board to act as a USB<->SW-DP bridge,
+to allow host software to use Serial Wire Debug Protocol to access target
+devices.  It should be usable on just about any STM32F103 board.
+
+GPIO 0 -> SWDIO
+GPIO 1 -> SWCLK
+GPIO 5 -> Activity LED
+
+This was the original prototype and has not been tested in a looong
+time now.
+
+
+debugger & gdb-bridge
+---------------------
+
+A simple standalone debugger and a bridge for the GDB remote protocol
+that commicate with a board running swdp.
+
+
+stm32boot
+---------
+
+A tool to download code to RAM or flash, via the stm32f1xx ROM serial
+bootloader.
+
+
+usbmon
+------
+
+Commandline tool to observe the linux usb stack and io transactions
+through /dev/usbmon*
+
+
+Included Third Party Software
+-----------------------------
+
+linenoise.[ch] 
+  excellent tiny commandline editor (BSD license)
+  https://github.com/antirez/linenoise
+
+
+Useful Documents
+----------------
+
+ARM DDI0337E Cortex M3 r1p1 Technical Reference Manual
+  Has useful details on SW-DP and debug peripherals that was removed
+  in later versions of the TRM as "redundant" with other documents.
+
+
+Historical Notes
+----------------
+
+The original work on this started in 2011 and has been tinkered with
+on a number of repositories by a number of people.  Trying to fold things
+back together and tidy up the build system, etc, ended up being a bit of
+a mess resulting in Brian declaring "history bankruptcy" and starting
+a fresh repository in 2014.
+
+Some random side projects have been removed.  An AUTHORS file has been
+added to provide credit for additional contributors to the codebase.
+
+The code base as of the initial checkin, built with gcc 4.8.2 and
+binutils 2.24 (http://github.com/travisg/toolchains) is verified to
+be able to use a m3debug board to flash the bootloader and app image
+to another m3debug board, which then can repeat the process.