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--- manual:demos:gcc_arm_embedded [2016/04/30 13:22]
voorburg created
+++ manual:demos:gcc_arm_embedded [2019/09/24 22:12] (current)
@@ Line 2: / Line 2: @@
 ===== Background =====
-For several years CodeSourcery (now Mentor Graphics) maintained and released the GCC for ARM compiler binaries, bundled with an easy to use installer, under the name //Codesourcery G++ Lite//. Unfortunately, their website now states that "Sourcery CodeBench Lite releases for ARM EABI, ARM GNU/Linux, ARM AARCH64-Linux, IA32/IA64 GNU/Linux and ELF are no longer available".
+For several years Codesourcery (now Mentor Graphics) maintained and released the GCC for ARM compiler binaries, bundled with an easy to use installer, under the name Codesourcery G++ Lite. Unfortunately, their website now states that "Sourcery CodeBench Lite releases for ARM EABI, ARM GNU/Linux, ARM AARCH64-Linux, IA32/IA64 GNU/Linux and ELF are no longer available".
-Several OpenBLT demo programs that target microcontrollers with an ARM core, make use of the //Codesourcery G++ Lite// toolchain. You can still find a download link to a working version of the toolchain on the page that describes the demo specifics. However, is it recommended to switch to the
+Fortunately, the ARM organization itself is actively maintaining and enhancing the GCC compiler for the ARM architecture. At regular intervals they release pre-built binaries of the toolchain under the name [[https://launchpad.net/gcc-arm-embedded|GCC ARM Embedded]].
+Several OpenBLT demo programs that target microcontrollers with an ARM core, make use of the Codesourcery G++ Lite toolchain. You can still find a download link to a working version of the toolchain on the page that describes the demo specifics. However, is it recommended to switch to the GCC ARM Embedded toolchain.
+This page describes how to upgrade from the Codesourcery G++ Lite to the GCC ARM Embedded toolchain, to the point that you can build the OpenBLT demo programs without any further changes.
+===== Upgrade procedure =====
+==== Step 1 - Uninstall Codesourcery G++ Lite ====
+Open your Windows Explorer and browse to directory //C:\Users\{username}\MentorGraphics\Sourcery_CodeBench_Lite_for_ARM_EABI\uninstall\// and double-click the program //uninstall.exe//.
+==== Step 2 - Download and install GCC ARM Embedded ====
+Visit the [[https://launchpad.net/gcc-arm-embedded|GCC ARM Embedded]] website and download the Windows installer. The filename is something like //gcc-arm-none-eabi-5_3-2016q1-20160330-win32.exe//, although the version number and release date in the filename might be different.
+Starts the installation by double-clicking the file you just downloaded. You can use all the default settings of the installer, except on the last screen. Here you need to check the checkbox //Add path to environmental variable//, as can be seen in the following illustration:
+{{:manual:demos:gcc_arm_install_with_path.png?}}
+At the end of the installation, the readme-file is shown and a command prompt window is opened. Both can be closed.
-To compile the demo programs with {{:manual:arm-2013.11-24-arm-none-eabi.zip?linkonly|Codesourcery G++ Lite}} (Target OS EABI), you can invoke the make utility from the command line.
+==== Step 3 - Download and install make and rm ====
+The build environment of the OpenBLT demo programs, which are configured for Codesourcery G++ Lite, rely on the utilities GNU make and rm that automatically get installed with Codesourcery G++ Lite. Now that these utilities are no longer on your computer, they should be downloaded and installed again.
+Download the utilities by following thes link {{:manual:demos:gnu_build_tools_win32.zip|}}. Once download, unpack the zip-archive and copy all unpacked files to the //.\bin// directory of where GCC ARM Embedded was installed. It will be a directory similar to //C:\Program Files\GNU Tools ARM Embedded\5.3 2016q1\bin//.
+This completes the upgrade procedure. Refer back to the page that describes the specifics of the [[manual:demos|OpenBLT demos]] and follow the instructions for building the bootloader and demo user program.

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