kkrambo 0 Posted June 25, 2014 Share Posted June 25, 2014 I have the Stellaris LaunchPad and I can use it successfully with CCS and IAR. Now I am trying to setup the Eclipse CDT with the GNU ARM Eclipse plug-ins, GCC ARM toolchain, and OpenOCD on my Windows system. I have been following the instructions at the GNU ARM Eclipse plug-ins website. I have successfully created and built a project from the plug-in's generic ARM Cortex-M Project template. But now I am stuck trying to run the debugger with the OpenOCD GDB Server. I created a debugger configuration as described on the GNU ARM Eclipse Plug-ins instructions, here. Except on the Debugger tab in the OpenOCD Settings groupbox I set the Other Options field to "-f board/ek_lm4f120xl.cfg". When I attempt to debug with this configuration, I get the following output in the console window. (The launchpad is connected and powered on.) Open On-Chip Debugger 0.8.0 (2014-04-28-08:39) Licensed under GNU GPL v2 For bug reports, read http://openocd.sourceforge.net/doc/doxygen/bugs.html Info : This adapter doesn't support configurable speed Info : ICDI Firmware version: 9270 Info : lm4f120h5qr.cpu: hardware has 6 breakpoints, 4 watchpoints Info : accepting 'gdb' connection from 3333 undefined debug reason 7 - target needs reset target state: halted target halted due to debug-request, current mode: Thread xPSR: 0x01000000 pc: 0x00002000 msp: 0x20007904 semihosting is enabled Error: memory write failed: 0x7 Error: memory write failed: 0x7 Error: memory read failed: 0x7 Error: memory read failed: 0x7 Error: memory read failed: 0x7 Error: memory read failed: 0x7 Error: memory read failed: 0x7 target state: halted target halted due to debug-request, current mode: Thread xPSR: 0x01000000 pc: 0x00002000 msp: 0x20007904, semihosting Error: Memory write failure! What do I need to do to get this working? This is on a Windows 7 system. I had previously installed the Stellaris ICDI driver from TI when I was using CCS. I'm assuming that same ICDI driver is what OpenOCD uses to interface with the board. Is there a different ICDI driver I need for OpenOCD? Thanks for your help. -- Kevin Quote Link to post Share on other sites
kkrambo 0 Posted June 25, 2014 Author Share Posted June 25, 2014 I figured out part of the problem. When I used the generic ARM Cortex-M Project template from GNU ARM Eclipse Plug-ins to create my project, it created a linker script with FLASH originating at 0x08000000, which is appropriate for STM32F* but is incorrect for Stellaris and Tiva microcontrollers. I changed the FLASH origin to 0x00000000 and now the debugger seems to start correctly and I can begin to step through the code. However, the program doesn't run correctly so there is still more work to do. Quote Link to post Share on other sites
spirilis 1,265 Posted June 25, 2014 Share Posted June 25, 2014 A good practice might be to snag the linker script from Energia (http://energia.nu) in the hardware/lm4f/cores/lm4f directory and try those; they're optimized for handling C and C++ code. I believe they're called lm4fcpp_blizzard.ld (Tiva-C TM4C123G and Stellaris) and lm4fcpp_snowflake.ld (Tiva-C TM4C1294 w/ Ethernet). Quote Link to post Share on other sites
Bingo600 0 Posted July 9, 2014 Share Posted July 9, 2014 Get the energia files here https://github.com/energia/Energia/tree/master/hardware/lm4f/cores/lm4f /bingo Quote Link to post Share on other sites
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