Moreover, it necessary to mention that the documentation does not cover any introductory data regarding the development of ARM architecture or microcontrollers in general. On a side note, while the application comes with extensive documentation and tutorials, you should keep in mind that it does not attempt to teach you any assembly language programming. In case you are compiling your software solution in any of the aforementioned and you are stuck, do not hesitate to check out the templates embedded in the app. It is necessary to mention that the program includes ample libraries for C and HTML programming languages as well as memory maps and Doxygen. Provides you with extensive code libraries The editor panel comes with all the tools and functions you would expect from an IDE suite, including syntax highlighting and breakpoints. The utmost left panel enables you to preview a summary of the files and folders that are included in your project, a feature that allows you to access any file quickly and make the necessary modifications if you encounter errors. The IDE comes with a structured and airy interface that comprises of several panels, which you can close and open, depending on your needs and preferences. The installation is quick, straightforward and does not require any special attention from your part, expect for specifying the location on your local drives. Includes a clean, customizable and well-organized interface Source code which uses it must be updated to be compiled with Embedded Studio V5.SEGGER Embedded Studio is a comprehensive IDE suite that provides you with an extensive set of tools and features to develop software solutions for ARM microcontrollers. Older versions of GCC and clang supported both.Ĭlang-11 and segger-cc 11 (as included in Embedded Studio V5.20) do not support the use of '$' anymore. While '$' is used in i386 asm, the arm assembly syntax only defines the use of '#'. Some legacy code used '$' instead of '#' for immediate values in inline assembly. This error message is rather cryptic, but its reason and solution is as follows: PLEASE submit a bug report to and include the crash backtrace, preprocessed source, and associated run script.Ġ. :2:2: note: instantiated into assembly here SEGGER_RTT_Conf.h:158:73: note: expanded from macro 'SEGGER_RTT_LOCK' SEGGER_RTT.c:730:3: error: unsupported relocation on symbol :1:2: error: unsupported relocation on symbol Troubleshooting Error: unsupported relocation on symbol When using an assembler project with the new linker script file make sure the following file is also included in your project /samples/SEGGER_crtinit.s You can find both files under /source in the ES installation folder. For this simply update the files thumb_crt0.s or crt0.s, depending on the CPU architecture used in your project. If you have an old project that still uses the GNU linker other steps are necessary.Īs explained above the heap init must be done so functions like malloc can be used. Make sure this is done after setting up heap. Initialize by symbol _SEGGER_init_heap // Call constructors for global objects which need to be constructed before reaching main (if any). The most important change is that the following two lines need to be added to the initialization block: The new linker script can be found under /samples/SEGGER_Flash.icf if you are using a Flash based project or /samples/SEGGER_RAM.icf if RAM based. If you are using RTT sources in your application, make sure the SEGGER_RTT_Syscalls_.c file is removed.Īlso make sure to set the correct I/O type for your project in project setting Library I/O. To use the new SEGGER run time library the following project option must be set: Code->Library->Run Time Library->SEGGER Additionally set the project option "Starting Stack Pointer Value" to _stack_end_. For this simply edit the Startup.s file as explained in the sources comments. But if you would like to set up a RAM debug project you can set it manually. Note: Generally the initial stack pointer is not set as this is usually done by the hardware. Note: The preprocessor define MEMORY_INIT has changed to _MEMORY_INIT. Note: When setting up a RAM debug config with the sources provided via CPU support packages please note that the preprocessor define for the VTOR config has changed to _VTOR_CONFIG. You can find the latest version of this file in your Embedded Studio installation folder under /samples/Cortex_M_Startup.s and /samples/SEGGER_THUMB_Startup.s 5.1 Error: unsupported relocation on symbolĭue to improvements on how the SEGGER toolchain handles the target startup code the Cortex_M_Startup.s and SEGGER_THUMB_Startup.s must be updated.
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