1 for Android with NEON support. GDB needs to exactly know the target architecture and OpenOCD currently does not automatically hand GDB all the needed details. c" starts at pc 0x634c and ends at 0x6350. 0, I am looking in the tcl/target folder. Also check your gdb version. thread-num form to refer to threads of inferior 1, the initial inferior. The GDB server software is executed in a separate process and thus does not affect the stability of Embedded Studio. OpenOCD Support. OpenOCD can be used to low level debugging, source level debugging (through GDB) and can be used for flashing. In other words, you have to custom-build GDB from source code. Use vMicro>Toggle Hidden Files to ensure all sources are available to the debugger. The script runs OpenOCD and communicates with it through a pipe, then synchronizes with the running target and stays halted. Otherwise, build it from source. Software and Tools. Maybe you can try to connect with this command also under OpenOCD. The developers for Visual Studio Code continue to amaze me by implementing really awesome features. If you don't have Arduino IDE take a look at the last section of this document. Note 2: OpenOCD v0. Using OpenOCD with TELNET connection (a simple tutorial) Motivation. 1 and telnet. To a gdbremote compliant JTAG probe, such as OpenOCD GDB session on host a. I love systemd. raspberry pie) will do…. UML Kernel Targets for debugging Linux with GDB. 21 GDB and OpenOCD. Before being able to use any JTAG probe with OpenOCD, you must separately install: the GNU MCU Eclipse OpenOCD debugging plug-in; the GDB debugger (client) application, as part of a GNU toolchain; the OpenOCD as a GDB server; any drivers required for the JTAG probe (for example FTDI drivers). I could give gdb the information it missed, designating the target binary file as a symbol file (using the symbol-file command). Copy the code below into the file: echo Executing GDB with. The C-SPY GDB Server driver communicates with the GDB Server via an Ethernet connection, and the GDB Server communicates with the. Connecting to jtag-openocd-gdb to arm11 device with IDA gets no control. GDB will then know when to set hardware breakpoints, and program flash using the GDB load command. This is the same as package management on linux. Many of the command names appears to have changed as well. Release Notes Version 0. • Starting GDB o arm‐non‐eabi‐gdb • Connecting to OpenOCD o (gdb) target remote localhost:3333 o (gdb) monitor reset init o (gdb) monitor halt • monitor ‐tells GDB to send command to OpenOCD. out file and start arm-none-eabi-gdb, which is part of the. 1 updates that support. The BEST Digital LED Strip Light Tutorial - DIY, WIFI-Controllable via ESP, MQTT, and Home Assistant - Duration: 18:39. Such commands could be sufficient for debugging your microcontroller, but many people were already familiar with the Gnu Debugger (GDB). Here is what my debugOCD. Either your application has no debug info or you use an external file with the debug symbols and that file was deleted. Set to enable to cause OpenOCD to send the memory configuration to GDB when requested. This section will demonstrate how to use GDB commands by going through example. What I have done is basically to follow this adafruit tutorial. GNU ARM Eclipse OpenOCD(github) gnuarmeclipse-openocd-win32-0. The GDB client (GDB stands for GNU Debugger) is part of the GNU Toolchains, and is located in the same folder as all GNU toolchain binaries (compiler, linker, etc). If you already have setup the toolchain for the ESP32, it already comes with GDB and OpenOCD. GDB Support in OpenOCD • CodeSourcery ARM Toolchain provides GDB build to support ARM based embedded devices. To program a SAMD21 board with OpenOCD you will need to connect that programmer to your board with the SWD header. There is an update (1611. Tutorial: How to Erase the FLASH with the GNU GDB debugger Posted on November 15, 2014 by Erich Styger I have several applications where I store application specific information in the microcontroller FLASH memory (see " Configuration Data: Using the Internal FLASH instead of an external EEPROM "). Fortunately, the STM32F3 Discovery board that I was using supports on-chip debugging. Unlike the AVR ISP programming protocol, every ARM chip is significantly different to program, with platform-unique commands, flash locations, fuse bits, settings, etc. Today I finally got a probe connected via JTAG and have openocd start up a GDB server. What I wanted to find out from the OpenOCD community is the interest in this and if there is any preference on how the frontend would be put together. However they are all based upon gdb, the GNU Project debugger. No problem. Just out of interest, is there any support for uLink-2 with OpenOCD / GDB ? It's been asked before:. It is recommended to uninstall the previous version before proceeding with 0. See GDB Configuration. Except on the Debugger tab in the OpenOCD Settings groupbox I set the Other Options field to "-f board/ek_lm4f120xl. Create a new folder in your home directory called GDB_OpenOCD_init, and a new text file in that folder. Has anyone set up a debugging configuration using OpenOCD and GDB. The ST Nucleo-F303RE board includes an on-board ST-LINK V2 programmer. The HiFive1 board is supported (note that it uses debug spec v11, not v13, and it does use the Debug RAM). I am a noob so bare with me. Fortunately, the STM32F3 Discovery board that I was using supports on-chip debugging. How mature is the MIPS EJTAG functionality in OpenOCD?. The OpenOCD server provides a GDB server interface on :3333. We'll open a new terminal window or SSH connection on the Pi and run this command to connect to OpenOCD:. monitor halt # # Setup OpenOCD and get the chip under control # #-enable the debug communication channel to write to memory. I am a noob so bare with me. Step 5: Step until we reach till line 13 (gdb) s. OpenOCD execution and target connection can be handled the same way. gdb supports debugging multithreaded programs, and OpenOCD can inform gdb of various processes running on the target hardware by mapping them as threads. Using standalone Digilent HS debug cable; Using OpenOCD with only one core in the JTAG chain. In this tutorial we will use a Segger J-Link programmer with the OpenOCD tool, however you can use any other supported programmer instead. The ST-Link is embedded on ST discovery boards, which are so cheap that you can afford a board only for the debugger part. GDB can see FreeRTOS tasks as threads. When starting the debugger with make debug BOARD=iotlab-m3 GDB connects to openocd, loads the elf-file and puts the MCU into halt state. 6 and later. Debugger Setup with GDB + OpenOCD in Visual Studio Code Posted on October 29, 2017 · 2 min read · #programming #embedded Visual Studio Code's combination of functionality, customizability, and aesthetics makes it one of my favourite code editors. Download pre-built OpenOCD for Windows. Now your chip is running the new firmware and is ready to debug. Old bad advice. The GDB server enables OpenOCD to function as a "remote target" for source-level debugging of embedded systems using the GNU GDB program (and the others who talk GDB protocol, e. Currently, I use another gdb server texane/stlink for my debugging task with GDB without any problem on some Nucleo and also custom boards. I like that it is quite novice-friendly, but I don't really want to pay the monthly subscription for its own debugger. The GNU MCU Eclipse OpenOCD is a new distribution of OpenOCD, customised for a better/more convenient integration with the GNU ARM OpenOCD Debugging plug-in. Most (all?) of ARM processors have JTAG. OpenOCD is an open-source tool that allows debugging various ARM devices with GDB using a wide variety of JTAG programmers. GDB can also be set-up on Windows but there is an issue passing the Ctrl-C command to GDB which makes it difficult to use effectively. view thread structures and so on. GDB Tutorial Gdb is a debugger for C (and C++). tcl -f zynq-zc706-1. Note that if you are using Raspberry Pi 3, you would need to change the peripheral base address from 0x20000000 to 0x3f000000. There is an issue with EM6 core in AXS101 - after OpenOCD writes DEBUG. OpenOCD exposes a command line interface which can be accessed through telnet. Configuring OpenOCD to debug your firmware. Using MacPorts will also mean that all the dependencies are downloaded too. For that modify the launch. OpenOCD is an open-source tool that allows debugging various ARM devices with GDB using a wide variety of JTAG programmers. The easiest way to program the board is to use OpenOCD. Select Use remote target and select GNU ARM OpenOCD as JTAG Device. This is a second guest blog post by Ilya Motornyy about programming for microcontrollers in CLion. Connecting to the FTDI for JTAG or SWD requires the following:. dll libraries, this version was compiled to use libftdi + libusb-win32 libraries. The problem is that, the OpenOCD (0. If i try to send anny command from debugger console openOCD returns the message "Info: drpped 'gdb' conection" I put some breakpoint on code, I compile the executable. OpenOCD is a tool to communicate with debug hardware tools such as the EDBG chip on the Arduino Zero. A JTAG debugging device compatible with OpenOCD (while I own many, in this case I'm using Olimex's ARM-USB-OCD since it's affordable, convenient, and easy to find online). The C-SPY GDB Server driver communicates with the GDB Server via an Ethernet connection, and the GDB Server communicates with the. Note, the following procedure applies when OpenOCD is used as GDB server, the following steps may differ if using a different GDB server but the concept is the same. Step 2: Run program with GDB $ gdb a. Debugging STM32 with GDB and OpenOCD When developing my Valentine’s day puzzle box , I found myself really wanting to single-step through some code to figure out where things were going wrong. Except on the Debugger tab in the OpenOCD Settings groupbox I set the Other Options field to "-f board/ek_lm4f120xl. This article explains how we build & use OpenOCD on Windows 10 for Darsena in a Cygwin environment. Getting Started with OPENOCD Using FT2232H Adapter for SWD Debugging May 19, 2016 by Yahya Tawil Learn how to make flashing your ARM-based MCU easy by using OpenOCD debugger with an FT2232H adapter. Currently the following GDB Server-based J-TAG solutions are available: OpenOCD; Using OpenOCD together with STR9-comStick. Today I finally got a probe connected via JTAG and have openocd start up a GDB server. Open a MinGW terminal and run the which commands. OpenOCD prints “target is still running!” after a CTRL+C has been done on the GDB client side. Several network interfaces are available for interacting with OpenOCD: telnet, TCL, and GDB. UML Kernel Targets for debugging Linux with GDB. Options are:. In general, LLDB works as well as GDB when it comes to debugging but we haven't found an LLDB counterpart to GDB's load command, which uploads the program to the target hardware, so currently we recommend that you use GDB. Otherwise, build it from source. OpenOCD (On-Chip Debugger) is an excellent open source, community project for debugging and programming of embedded processors and FPGAs. To do that, download Zadig and run it. There are several subcommands depending on if the target is an executable, core file or on a remote machine. Flashing the Device Over OpenOCD. BRUH Automation 681,987 views. Using eclipse cdt as gdb front end is now much more straight forward with the modifications of the way gdb 'run' command works. The procedure I use is the following: - reset the board, - redboot will now configure the HW - Stop redboot and halt the CPU using GDB - Load the SW image using GDB/OpenOCD - Continue But when I try to load the image openocd is reporting errors (see below). The easiest way to program the board is to use OpenOCD. Trying to install a toolchain for an STM32F4 Discovery Eval Board. exe), enter the path and name of the OpenOCD executable, -s and the path to the scripts, enter one or more -f followed by the path to the specific configuration class and. Recent versions of OpenOCD (like, within the last year at least), support the nRF52832 and nRF52840 out of the box. You can use netcat or the telnet client, I personally prefer the telnet client. I explain below how to communicate with, and upgrade the Bus Pirate and how to use it with OpenOCD software to debug chips. Hi folks I remember a while ago Michael ring had someway of modified version of Lazarus to connect to gdb spawned from a openocd session , is this still. This works fine when starting OpenOCD separately, and using TCP/IP to connect to it, with something like this: target remote localhost:3333 When I'm done, I can shut down GDB using quit as normal. - dingo_kinznerhook Sep 10 '13 at 16:58. GNU ARM Eclipse OpenOCD(github) gnuarmeclipse-openocd-win32-0. ** It is recommended to use the Developer Package to run the gdb debug session, which provided all dependencies * Cross compile gdb and openocd binaries are required and only available from Distribution Package. OpenOCD provides JTAG and Serial Wire Debug(SWD) access to SimpleLink devices from GNU Debugger (GDB) (or directly with Tool Command Language (TCL) scripts) as well as network interfaces (e. » Mon Jan 30, 2017 9:34 pm Ever since I started working with the esp32 I haven't been able to debug properly. 0 already compiles OpenOCD to support the GDB debugger. You can also connect to it with gdb. Debugging with OpenOCD and gdb¶ Please use openocd 4. txt to try out gdb. -VOLUME adds files from the host file system into the Docker container. Configure the GDB and the OpenOCD to be attached on the running target in U-Boot phase. Step 4: Run program (gdb) run. I am a noob so bare with me. Please try instead xtensa-esp32-elf-gdb build/blink. They can be found in cars,. OpenOCD has chosen not to implement the GDB reset command. No problem. CLion supports remote debug with GDB/gdbserver. jrc -event post-reset "runtest 200" # # GDB target: Cortex-A9, using DAP # # The debugger can. If yes, it can be some weird conflict between VisualGDB opening and immediately closing the port to test it and OpenOCD using it to accept connections. Thats because we use the gdb-dashboard which is an awesome tool for doing gdb debugging in general. Debugging the SAMD21 with GDB. view thread structures and so on. That means if your cross-debugger is running locally and communicating with your embedded device via a stup, then DDD doesn't care at all that your gdb is a native or a cross debugger; the commands are still the same. To recap the gdb commands I use, to connect to openocd:. Very cheap. 6 RTOS Support; 21. (I eventually patched it to fix that. We want to know if we can use the generally available Olimex ARM USB JTAG connector for hardware connection. Now, on you dekstop computer you can run gdb, but it has to be the arm gdb. The Open On-Chip Debugger. CodeLite & GDB for ARM Just after finishing the Elektor article about how to debug the Sceptre (or any other microcontroller that can be debugged over JTAG) using OpenOCD and GDB, I discovered another free IDE that seemed to be good for embedded development: CodeLite. ) To run DDD, you need the GNU debugger (GDB) , version 4. data, size 0x5a4 lma 0x2bb84 Start address 0x0, load size 180520 Transfer rate: 5 KB/sec, 13886 bytes/write. Now connect GDB to the board target remote localhost:3333. I'm using ftdi-based xds100v2-compatible jtag emulator. Connection to a KGDB stub in a running kernel b. In this tutorial we will use a Segger J-Link programmer with the OpenOCD tool, however you can use any other supported programmer instead. We will be using port 3333. most people will be using gdb as the backend debugger and possible eclipse/insight as a gui. xtensa-esp32-elf-gdb -x gdbinit build/blink. cfg" a small bash script - "write_bin. The HiFive1 board is supported (note that it uses debug spec v11, not v13, and it does use the Debug RAM). Many of the command names appears to have changed as well. Got Energia working-- version 0101E0010 has a bug where lm4flash doesnt work and needs to be replaced with a working version. As of 7 May 2009, a ti_dm355. I'm trying to use an STLink/V2 on a SparkFun Photon RedBoard. If your distro provides this packaged, just use it. Barcode Reader for. Recent versions of OpenOCD (like, within the last year at least), support the nRF52832 and nRF52840 out of the box. (I eventually patched it to fix that. text, size 0x2bb84 lma 0x0 Loading section. Using GNU DeBugger (GDB) with the FTDI via OpenOCD is covered in this document. It's a chore to follow all that. In mid-2019, the OpenOCD binaries were moved from the GNU MCU Eclipse project to the xPack project. What is openOCD? Is it some protocol which ULINK2 has to supportso that GDB debuggin would be possible?Would appreciate if any of you can really help me through thislearning curve. First, the OpenOCD server needs to be running (in this case with the Segger J-Link):. Debugging with GDB on STM32¶ This page describes how to setup GDB on Linux to debug issues on STM32. # Attach to our OpenOCD server (which listens on port 3333 by default) (gdb) target remote localhost:3333 # Use gdb to disassemble our main() function # You will see the code pushes the Link Register (lr) onto the stack then starts # calling the functions defined in init. Using OpenOCD as just a programmer instead of a debug tool is very convenient in cases of mass production where you already have a prebuilt and already debugged image and you only need to download that image to the target device. GDB can also be set-up on Windows but there is an issue passing the Ctrl-C command to GDB which makes it difficult to use effectively. Step 4: Run program (gdb) run. OpenOCD complies with the remote gdbserver protocol and, as such, can be used to debug remote targets. com riscv-gnu-toolchain has had working. So give aliexpress a try. Local executable should point at compiled ELF executable. - If you already own some JTAG adapter, you can use it when it is supported by openOCD, just start openocd with different configuration file based on type of your jtag adapter. Open On-Chip Debugger has been created by Dominic Rath as part of a diploma thesis at the University of Applied Sciences, FH-Augsburg. I assume the problem is in the openocd, but I do not understand why it is that slow. Hello, I have the Artix-7 35T FPGA and I’m following the freedom platform github. 4 Programming using GDB; 21. Recent versions of OpenOCD (like, within the last year at least), support the nRF52832 and nRF52840 out of the box. There was a problem while debugging using openocd and gdb. The IDE I'm using came from the Olimex dev-kit CD and makes use of eclipse ganymede. OpenOCD complies with the remote gdbserver protocol and, as such, can be used to debug remote targets. Several network interfaces are available for interacting with OpenOCD: telnet, TCL, and GDB. From the OpenOCD’s output provided above you can tell that the OpenOCD expects a connection from GDB on port 3333. Maybe you can try to connect with this command also under OpenOCD. So if you know your way around an IDE with gdb support, integrating it should be easy. I used the example setup from dwelch67 and have been using that setup to download and debug programs for a while. JTAG can also be used with a source-level debugger (gdb and OpenOCD), but that's a big topic and will get its own tutorial. Debugging, in-system programming and boundary-scan testing for embedded target devices (git version). The easiest way to install it is using Homebrew , a pacakage manager for OS X similar to MacPorts or Fink. This in a continuation from part 1. Prerequisites; Building an application; Board configuration; Running OpenOCD; Running GDB; Advanced topics. Over the Debug window, you can find the buttons for controlling the program execution (continue, stop, step into, step over, etc. Today we'll focus on the GNU toolchain that is made up of the GNU Compiler Collection (better known as gcc), the GNU Debugger (gdb) and number of other programs. 0 for Windows. Hello, I am trying to install the new Olimex ARM-USB-OCD that I have bought but for some reason its giving me errors. Thus you can test basic connectivity with the target, write script files and debug those script files. cfg -f mt3620-io0. It mounts as a flash drive and you just drag and drop the binary file onto it. The mbed is really easy to program. At this prompt you should start writing some commands. Befor setting breakpoints it is sometimes needed to use the following workflow. Sorry my development budget is small. This launches our OpenOCD/gdb server which we’ll need to connect to using telnet. Using OpenOCD and a physical JTAG connection allows you to burn the on-chip flash memory of your CPU (or to load your code directly to RAM), to read the internal CPU memory (Flash/RAM) and to use gdb or other debuggers to debug your code. unable to debug using gdb and openocd. 9 or better. Copy the code below into the file: echo Executing GDB with. This only opens a GDB shell. GDB is the GNU Debugger which talks with OpenOCD to control and inspect the raw state of the microcontroller and, using the binary symbols,. Distribution of GNU compilers provided at this site includes gdb. See GDB Configuration. GDB Tutorial Gdb is a debugger for C (and C++). Step 4: Run program (gdb) run. To install OpenOCD with MacPorts via the Terminal you simply use the command "sudo port install openocd +stlink" from an administrators account. Let me start off by saying this is the first time I've tried using OpenOCD. This is available when you configure GDB with `--target=mips-idt-ecoff'. WinGDB has been around since 2009. I love systemd. Now we are ready to start debugging. I'm using an Olimex ARM-USB-OCD dongle with openOCD and GDB to program and debug an stm32f103 micro. 1a probe and openocd (freshly cl. Note that the information will be shown in both OpenOCD pane and the GDB Session pane:. With Presto the programming procedure is fast) The mips-sde-elf-gdb from Sourcery supports the "info mem" command, but it's also slow when debugging. Make sure to fill out Debugger to arm-none-eabi-gdb pointing to your toolchain's GDB debugger. It seems like something in the memory management is incorrect, do the graphics need to be loaded to the off-chip memory instead somehow? How to return the Discovery board to its factory state? James. Today I finally got a probe connected via JTAG and have openocd start up a GDB server. exe), enter the path and name of the OpenOCD executable, -s and the path to the scripts, enter one or more -f followed by the path to the specific configuration class and. CLion for Embedded Development Part I CLion for Embedded Development Part III: OpenOCD debugger support and integration with STM32CubeMX is available out of the box in CLion Upd. The U-Boot function jumps to the Linux kernel module previously loaded. OpenOCD as a standalone GDB server, as an alternative to OpenOCD Download & Run. Using OpenOCD as just a programmer instead of a debug tool is very convenient in cases of mass production where you already have a prebuilt and already debugged image and you only need to download that image to the target device. The GDB client (GDB stands for GNU Debugger) is part of the GNU Toolchains, and is located in the same folder as all GNU toolchain binaries (compiler, linker, etc). Using software breakpoints to debug in DDR at address 0x88000000 does not work neither with JLink nor with OpenOCD. Using an IDE to debug the kernel. Once you have installed OpenOCD (look here for installation instructions), you can flash the board simply by typing. 3 have openocd 0. It also sort of assumes that you basically know what debugging is and that you have used a debugger on another system. If you already have setup the toolchain for the ESP32, it already comes with GDB and OpenOCD. To do that, download Zadig and run it. I've managed to get openocd working with the board (required a slightly modified config file, with increased WORKAREASIZE), and I can debug a program via `arm-none-eabi-gdb`. Just out of interest, is there any support for uLink-2 with OpenOCD / GDB ? It's been asked before:. OpenOCD is the software that we will use to do the actual programming of chips. I could give gdb the information it missed, designating the target binary file as a symbol file (using the symbol-file command). Now the OpenOCD and GDB Debugger are ready for you to debug. The easiest way to install it is using Homebrew , a pacakage manager for OS X similar to MacPorts or Fink. So give aliexpress a try. 0 and built it with libftdi support, tested on windows XP SP3 & Ubuntu 10. Often, GDB runs in the same host environment as your program; in that case, the debugging target is specified as a side effect when you use the file or core commands. Barcode Reader for. This is the same as package management on linux. Once you have installed OpenOCD (look here for installation instructions), you can flash the board simply by typing. If you need both HS34 and HS36 in the JTAG chain use OpenOCD instead of Ashling GDB Server. In that case, GDB with openOCD environment is used in a Developer Package context (SDK). 5 you can use OpenOCD as GDB server. You can also dig around in the Arduino distribution and find it. Check that you are using the installed versions arm-none-eabi-gcc and arm-none-eabi-gdb. Regain 10's of minutes from each day or more! Enter systemd. Hello, I have the Artix-7 35T FPGA and I’m following the freedom platform github. Added gdbCommands to support PSoC 6. Blog » Debugging from GDB using pyOCD! but pyOCD is a much nicer smaller codebase to work with for flashing and gdb service than openocd!. Also any help in setting up openOCD tool on Ubuntu machine for debugging with Beaglebone would be highly. Change Template Debug to OpenOCD Debug and make sure the. Note that the information will be shown in both OpenOCD pane and the GDB Session pane:. Connect the Bus Pirate and the Proxmark3 using probe cables. Note that if you are using Raspberry Pi 3, you would need to change the peripheral base address from 0x20000000 to 0x3f000000. It is really nice to see stack frames and tasks states, but I’d like to attach to a thread and debug it rather than stopping whole system. OpenOCD GDB Server ("servertype": "openocd") To the right is an example of a basic launch configuration using the OpenOCD GDB server. Getting Started with OPENOCD Using FT2232H Adapter for SWD Debugging May 19, 2016 by Yahya Tawil Learn how to make flashing your ARM-based MCU easy by using OpenOCD debugger with an FT2232H adapter. 0 and later include it; or you can get a snapshot of the current source tree. gdbinit file, which can be found on my github. OpenOCD execution and target connection can be handled the same way. It's a very good intro into working with JTAG, OpenOCD, gdb and CRP bypass. To actually connect to the OpenOCD GDB server, use the following command within the GDB shell:. Fortunately, the STM32F3 Discovery board that I was using supports on-chip debugging. On cortex_a8 following command have been implemented. gdbinit file with something like:. Consult the OpenOCD documentation for more details if a non-default openocd configuration is being used. Prerequisites; Before running OpenOCD and GDB, check that the target board is in the right state. Maybe today it works out of the box. This only opens a GDB shell. Debugging, in-system programming and boundary-scan testing for embedded target devices (git version). but they have this to say about 3rd party JTAG adapters: If you decide to use separate JTAG adapter, look for one that is compatible with both the voltage levels on the ESP32 as well as with the OpenOCD software. Once you have installed OpenOCD (look here for installation instructions), you can flash the board simply by typing. At this prompt you should start writing some commands. In past, building OpenOCD under Windows was really complicated since it has a lot of dependencies and not was easily available under windows. The piece of software that we will use in Eclipse to do our debugging is called gdb, the GNU debugger. Prerequisites; Building an application; Board configuration; Running OpenOCD; Running GDB; Advanced topics. The IDE I'm using came from the Olimex dev-kit CD and makes use of eclipse ganymede. For our first debug target we will use Blink. It is possible to use an SWD (ST-Link) adapter instead, for this use openocd 0. openocd implements the required functionality, or at least it's meant to ;-). I downloaded openocd released by TI and it seems to work, when I start it from the. When I was researching for a toolchain I saw people say good things about PlatformIO. Port number: 3333 (or 3334 for second device). Note that the feature is only available in GDB 6. OpenOCD prints “target is still running!” after a CTRL+C has been done on the GDB client side. Seeedstudio Bus Blaster price is less than 40 US$ on Ebay. I have been using GDB and Openocd to debug my embedded platform. I want to use the STM32L152RE on a. I have a binary chunk from a piece of hardware I've been deciphering with IDA for a couple days now. JTAG is a standard on-chip debug connection available on most ARM processors.