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Release Notes for
Microcontroller Development Kit

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This file contains release notes and last minute changes.

Information in this file, the accompanying manuals, and software is
Copyright © 2018 ARM Ltd.
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Contents

  1. Technical Support
  2. Contact Details

The MDK-ARM Microcontroller Development Kit supports software development and debugging for ARM-based microcontroller devices. A detailed description of MDK-ARM may be found in Complete User's Guide Selection which may be accessed on the µVision Project Workspace — Books page. The Getting Started User's Guide gives you a good starting point, since it introduces you to MDK-ARM and gives guidelines for programming ARM devices.

What's New in MDK-ARM

The following sections list the changes instituted in each release of the Keil ARM toolset.

MDK Version 5 is capable of using MDK Version 4 projects after installation of the Legacy Support. This adds support for ARM7, ARM9, and ARM Cortex-R4 processor-based devices.

MDK-ARM Version 5.25

Release Date: 22nd March, 2018

  • [uVision updated to V5.25.2]
    • New: System Analyzer shows relevant execution information over time in a single window. It displays program events, interrupt execution, data trace, and power consumption (when using ULINKplus).
    • New: Event Statistics Window displays execution time and current consumption (when using ULINKplus) between corresponding start and stop events. It provides statistics for average values across a number of executions and captures minimum and maximum time/current events.
    • Added: Event Recorder debug commands: event file logging, filter setup save/restore, and statistic reset/file logging.
    • New: Editor Improvements: grey text shows inactive source code between #if/#endif statements; underlined text shows help links for symbols, types and functions. Press the F1 key to open the corresponding documentation.
    • New: Energy Measurement without Debug disables the CoreSight debug hardware for pure power measurement of the target hardware using ULINKplus.
  • [Target debugging]
    • Added: Arm ULINKplus debug adapter support. See the ULINKplus User's Guide for further information. The User's Guide also covers the uVision features introduced for Power Measurement and Test Automation using ULINKplus.
    • Updated: P&E Micro debug driver to version 6.78.
    • Updated: Segger J-Link debug driver to version 6.30h.
    • Updated: NULink driver to version 2.03.6674.
  • [ARM Compiler included]
    • Updated ARM Compiler 5 to version 5.06u6: see Release Notes for further details.
    • Updated ARM Compiler 6 to version 6.9: see Release Notes for further details.
  • [Software Packs included]
    • ARM - CMSIS 5.3.0
    • Keil - ARM Compiler Extensions 1.4.0
      • Added dedicated start/stop events to the Event Recorder component. These events enable the MDK debugger's Event Statistics dialog to display minimum, maximum and average execution time, number of passes and current consumption in between these events.
    • Keil - MDK Middleware 7.6.0
      • The File System Component: remains unchanged to version 6.10.0.
      • Updated: the Network Component: to version 7.8.0.
        • Added: netUninitialize function to uninitialize the Network component.
        • Corrected: a failure in netSMTPc_SendMail function, when sending an email with a large attachment.
        • Corrected: netSMTPc_SendMail functionality, if the requested attachment does not exist, the function fails with error code netFileError, rather than send a dummy attachment.
        • Changed: return code netError to netFileError where appropriate in TFTP client.
        • Corrected: quoted-printable encoding for the character '=' in netSMTPc_SendMail function.
        • Documented: possible return codes for Network API functions.
      • Updated: the USB Component to version 6.12.4.
        • USB Host
          • Corrected: timer, semaphore and mutex section location for debugging purposes.
          • Improved: robustness by adding 2 retries for failed driver operations.
          • Corrected: USART_CDC_ACM.c CMSIS UART driver receive function returning invalid data in receive buffer.
          • Improved: USB Flash disk unmount procedure.
        • USB Device
          • Corrected: timer, semaphore and mutex section location for debugging purposes.
          • Improved: robustness by adding 2 retries for failed driver operations.
      • Updated: the Graphic Component to version 5.46.5 (5.46e).
        • Added new set of functions for runtime rotation.
        • Added new function GUI_SetClearTextRectMode() to manage the background drawing behavior of GUI_DispStringInRect()
  • [Supported Operating Systems]

MDK-ARM Version 5.24a

Release Date: 05th July, 2017

MDK-ARM Version 5.24

Release Date: 30th June, 2017

  • [ARM Compiler]
  • [Software Packs included]
    • ARM - CMSIS 5.0.1 same as in MDK - Version 5.23.
    • Keil - MDK Middleware 7.4.1
      • Updated the FileSystem Component to version 6.9.8.
        • Added: for memory cards connected via SPI a bus frequency adaptation algorithm is implemented.
        • Enhanced: debug messaging for Event Recorder.
      • Updated the USB Component to version 6.11.0.
        • Added: support for ARMCLANG compiler version 6.
        • USB Host
          • Corrected: enumeration of USB HID devices which stall SetIdle request.
        • USB Device
          • Added: Mass Storage Class support for multiple Logical Units (up to 4).
      • Updated the Network Component to version 7.5.0.
        • Added: support for IPv4 fragmentation and reassembly.
        • Added: configurable MTU parameter at runtime.
    • Keil - ARM Compiler Extensions 1.3.1
      • Updated SCVD examples to build without warnings for use with ARMCLANG compiler.
      • Updated SCVD Event Recorder documentation.
  • [Target debugging]
    • Updated: Nuvoton NULink debug driver to version 2.01.6592.
    • Updated: P&E Micro debug driver to version 6.42.
    • Updated: Segger J-Link debug driver to version 6.16c adding support for ARMv8-M based devices.
    • Updated: STMicroelectronics ST-LINK debug driver to version 3.0.1.0 adding support for ST-Link V3.
  • [uVision updated to V5.24.1.0]
    • Updated: Feature map of the MDK Editions are reflected by the product i.e.:
      • Introduction of MDK Essential superseding MDK Cortex-M.
      • MDK Plus supporting secure mode application development and debug of Cortex-M23 and Cortex-M33 based devices.
    • Added: Source Browse information is now available in project targets using ARM Compiler 6:
      • Information is generated dynamically, does not require a successful project build and is updated as the source code is edited.
      • While the source code is processed, the status bar displays: Creating Browse Information ….
    • Improved: Source Browser window redesign for better usability for project targets using the ARM Compiler 6.
    • Improved: Dynamic Syntax Checker for project targets using the ARM Compiler 6:
      • Warning level configured for the build is also considered by dynamic syntax checking.
      • Warning and Errors are now consistent with the build output window.
    • Added: ARM Compiler 6 warning level MISRA Compatible suppressing compiler warnings contradicting MISRA rules. Warning level Moderate Warnings got renamed to AC5-like Warnings.
    • Improved: PC-Lint setup:
      • separate configuration settings for C and C++ modules.
      • the generated lint command files are stored in the output folder configured for object files.
    • Extended: the ARM-Compiler version selection in Options for Target dialog adds the option to select the latest installed version of ARM Compiler 5 and ARM Compiler 6.
    • Improved: the MDK-ARM installer creates a backup of the TOOLS.ini file in case an existing installation folder is used.
  • [Supported Operating Systems]

MDK-ARM Version 5.23

Release Date: 10th February, 2017

  • [ARM Compiler]
  • [Software Packs included]
  • [FlexNet Floating Licenses]
    • Customers using FlexNet floating licenses should update the FlexNet License Server to version 11.14.1.0. This FlexNet server version is mandatory for upcoming tool releases.
    • FlexNet Version 11.14.1.0 License Server tools for Windows are located in the directory ..\Keil\UV4\FlexNet. Refer the FlexLM licensing knowledgebase article for more information.
    • FlexNet Version 11.14.1.0 License Server tools are also available on developer.arm.com for other hosts platforms.
  • [Target debugging]
    • Updated: ULINKpro firmware to version 1.58, which corrects connectivity issues for low supply voltage targets.
    • Improved: Multi-Core debug stability for CMSIS-DAP debuggers.
    • Improved: download of large applications into RAM at low debug clock frequencies of the ULINKpro debugger.
    • Enhanced: Reset Type selection in the Debug Setup Dialog. The setup is now based on the CMSIS Pack information.
    • Updated: P&E Micro driver to version 6.27.
  • [PackInstaller]
    • Improved: PackInstaller can import Software Components from other sources located on your computer or on a mapped network drive and manage them as separate software packs.
    • Added: option Check for Updates on Launch to download any updated PDSC file form www.keil.com when the PackInstaller is started.
  • [uVision updated to V5.23.0.0]
  • [Supported Operating Systems]

MDK-ARM Version 5.22

Release Date: 11th November, 2016

    This release includes support for Cortex-M33 and Cortex-M23 devices based on the ARMv8-M architecture. For using Cortex-M33 and Cortex-M23 a MDK-Professional Edition is required.
  • [ARM Compiler]
  • [Software Packs included]
  • [FlexNet Floating Licenses]
    • Customers using FlexNet floating licenses should update the FlexNet License Server to version 11.14.0.0. This FlexNet server version is mandatory for upcoming tool releases.
    • FlexNet Version 11.14.0.0 License Server tools for Windows are located in the directory ..\Keil\UV4\FlexNet. Refer the FlexLM licensing knowledgebase article for more information.
  • [Target debugging]
    • Updated: Segger J-Link driver for ARM devices to version 6.10i.
    • Updated: P&E Micro driver to version 6.03.
    • Updated: NULink driver to version 2.00.6561.
    • Added: Event Recorder Support.
    • Improved: support for V8M based CPUs.
    • Improved: Core peripheral dialogs.
  • [uVision updated to V5.22.0.0]
    • Added: Event Recorder that shows dynamic execution status and event information which helps to analyze the operation of software components. The required annotations are implemented in debug variants of the MDK middleware.
    • Added: Cortex-M23 and Cortex-M33 processor support.
    • Enhanced: Core peripheral dialogs (Secure/Non-Secure MPU, SysTick, SAU, NVIC) for ARMv8-M based devices
    • Enhanced: Debug status bar displays Debug and Core security status for TrustZone for ARMv8-M enabled devices
    • Enhanced: New PC-Lint configuration option to add project target and compiler specific preprocessor symbols
  • [Supported Operating Systems]

MDK-ARM Version 5.21a

Release Date: 18th August, 2016

MDK-ARM Version 5.21

Release Date: 12th August, 2016

MDK-ARM Version 5.20

Release Date: 9th May, 2016

  • [ARM Compiler]
    This release includes two ARM Compiler Versions.
    • ARM Compiler 5.06u2: should be used for Cortex-M devices. Refer to Compiler Specific Release Notes for details.
    • ARM Compiler 6.4 (LLVM technology): should be used for ARMv8-M processors (currently not supported in MDK-Lite). The usage for Cortex-M devices is possible, however requires CMSIS Version 5 that is currently available as beta version. Refer to ARMCLANG Specific Release Notes for details.
  • [Software Packs included]
  • [Target debugging]
    • Updated: Segger J-Link driver for ARM devices to version 5.12e.
    • Added: debug support for the Texas Instruments XDS110 debug probe that is used on the TI MPS432 Launchpad.
    • Updated: P&E Micro driver for Freescale Kinetis devices to version 2.4.6.0.
  • [uVision updated to V5.20.0.0]
  • [ARMv8-M Architecture support] (MDK-Professional Edition only)
    Software Development for the ARMv8-M Architecture is fully supported with:
    • ARM Compiler 6.4 (LLVM technology): that includes ARMv8-M Security Extensions for TrustZone.
    • Fixed Virtual Platform: with complete simulation model for ARMv8-M Baseline and ARMv8-M Mainline.
    • ARM - CMSIS 5.0.0: with support for ARMv8-M processor architecture. Currently available as beta version via PackInstaller or www.keil.com/pack.
    • Keil - V2M-MPS2_CMx_BSP 1.3.0: is the ARM V2M-MPS2 Board Support PACK for Cortex-M System Design Kit Devices and contains ARMv8-M with example projects. Available via PackInstaller or www.keil.com/pack.
  • [Supported Operating Systems]

MDK-ARM Version 5.18a

Release Date: 22nd March, 2016

  • [uVision Debugger]
    • Corrected: potential stability issues introduced in version 5.18 when using trace features of the debugger.
    • Corrected: ULINKpro, ULINK2, and CMSIS-DAP interface drivers to correct the stability issues.

MDK-ARM Version 5.18

Release Date: 5th February, 2016

  • [ARM Compiler]
  • [Software Packs included]
    • ARM - CMSIS 4.5.0 adds CMSIS-Driver CAN and corrects issues in CMSIS-RTOS RTX.
    • Keil - ARM Compiler Extensions 1.0.0 enables I/O re-targeting via File System, UART, ITM debug channel, or user-defined functions.
    • Updated: Keil - MDK-ARM Professional Middleware 7.0.0 introducing Network Dual Stack (IPv4/IPv6) Version 7.0 and updated Graphic Library, File System, and USB Host.

      Note: The API of the Network 7 component is not backwards compatible to version 6. When loading projects that use Network 6, uVision will report:
            
          Error #540: 'Keil.MDK-Pro::Network:CORE:Release:6.5.0' component is not available for target ...
            
      There are two ways to resolve this issue:
      1. Install Keil - MDK-ARM Professional Middleware 6.6.0 and open the dialog Select Software Packs to select the version of the pack.
      2. Migrate the application to Network 7 as described in the user's guide of the Network Dual-Stack Component - Migration. Using the Compatibility Mode simplifies the migration of existing projects.
      Example projects of existing Device Family Packs (DFP) are based on the Network 6 component and currently the following software packs are affected:
            
          Keil.EFM32GGxxx_DFP.2.2.0.pack
          Keil.SAM-ESV7_SFP.2.2.0.pack
          Keil.Kinetis_SDK_DFP.2.2.0.pack
          Keil.LPC1700_DFP.2.2.0.pack
          Keil.LPC1800_DFP.2.6.0.pack
          Keil.LPC4000_DFP.2.0.0.pack
          Keil.LPC4300_DFP.2.6.0.pack
          Keil.STM32F1xx_DFP.2.0.0.pack
          Keil.STM32F2xx_DFP.2.5.0.pack
          Keil.STM32F4xx_DFP.2.7.0.pack
          Keil.STM32F7xx_DFP.2.4.0.pack 
            
      These example projects are based on the Network 6 component: BSD Client, BSD Server, FTP Server, HTTP Server, HTTP Upload, SMTP Client, SNMP Agent, Telnet Server. Future releases of DFPs will be based on the Network 7 component.
  • [Target debugging]
    • Updated: Segger J-Link driver for ARM devices to version 5.10i.
    • Implemented multicore support for CMSIS-DAP debugger. It is possible to debug two different cores on the same device by using two instances of µVision.
  • [uVision updated to V5.18.0]
  • [Supported Operating Systems]

MDK-ARM Version 5.17

Release Date: 30th October, 2015

  • [ARM Compiler]
  • [Software Packs included]
  • [Target debugging]
    • Updated: Segger J-Link driver for ARM devices to version 5.02f.
    • Updated: the STMicroelectronics ST-LINKIII-KEIL_SWO.dll to version 2.0.18.
    • Updated: the NuLink Keil driver to version 1.30.6491.
    • Added: the NuLink USB driver version 1.1.
  • [uVision updated to V5.17.0]
    • Added: new option to limit the Find in Files utility to the "Current Document".
    • Added: new option Stop after Reset in Debug driver configuration to stop program execution on reset (Reset Vector Catch).
    • Enhanced: editor now supports Arabic, Baltic, Eastern European, Greek, Hebrew, Russian, Thai, Turkish, and Vietnamese character sets.
    • Corrected: Bookmark navigation is now working only on the "Current Document".
    • Corrected: System and Thread Viewer shows now also the stack usage of os_idle_demon.
    • Corrected: while creating a project and selecting different devices, device startup files of previous selected devices are renamed to filename.NNNN to provide a backup.
    • Corrected: STM32CubeMX for configuration of the STM32Cube framework sometimes failed to start.
    • Corrected: opening struct elements in the Watch Window did not always show up-to-date values.
  • [Supported Operating Systems]

MDK-ARM Version 5.16a

Release Date: 27th August, 2015

  • [ARM Compiler]
    • The ARM Compiler 5.05u2 must be used for ARM7, ARM9 and Cortex-R4 processor based targets due to a regression in ARM Compiler 5.06. This defect will be fixed in MDK Version 5.17. This MDK release installs:
      • ARM Compiler 5.06 (default for Cortex-M targets) which includes support for STM32L4 Series. All compiler related files located in ..\ARM\ARMCC\ directory. Details can be found in the Compiler specific Release Notes.
      • ARM Compiler 5.05u2 (default for ARM7, ARM9, Cortex-R4). All compiler related files located in ..\ARM\ARMCC_505u2\ directory. Details can be found in the Compiler specific Release Notes.
  • [uVision]
    • This MDK release contains µVision V5.16.1.
    • Corrected: export of mbed projects had potential build errors.
  • [Supported Operating Systems]

MDK-ARM Version 5.16

Release Date: 12th August, 2015

  • [ARM Compiler]
    • This MDK release contains ARM Compiler 5.06 (build 20) which includes support for STM32L4xx based devices. All compiler related files located in ..\ARM\ARMCC\ directory. Details can be found in the Compiler specific Release Notes.
  • [uVision]
    • This MDK release contains µVision V5.16.0.
    • Improved: Project build now takes advantage of systems that have multiple processors or multiple-core processors. Additional build processes are created to utilize the available processors and therefore drastically reduce the overall built time. µVision can process these builds simultaneously, and therefore overall build time is reduced.
    • Added: With the menu Edit – Configuration - Right Margin a line boarder can be configured which is show as vertical line or coloured background.
    • Added: compiler toolchain documentation is now also accessible in PDF format from the Books Window.
  • [Software Packs included]
    • Keil - MDK-ARM Professional Middleware 6.5.0
      The Keil::MDK-Middleware 6.5.0 Software Pack contains several enhancements and corrections. Improved are the Graphic Library, File System, and USB Host.
    • ARM - CMSIS 4.3.0
      The ARM::CMSIS 4.3.0 Software Pack adds a CMSIS-Driver for Serial Audio Interface (SAI) and improves CMSIS-RTOS RTX with Stack Watermark and IRQ timing statistics. Included are also several other enhancements such as cache control functions for Cortex-M7.
    • Keil - ARM Compiler Extensions 1.0.0
      The Keil::ARM_Compiler 1.0.0 Software Pack contains the new Software Component Compiler that expands MicroLib with assert and enables I/O re-targeting via File System, UART, ITM debug channel, or user-defined functions.
  • [Target debugging]
    • Updated: Segger J-Link driver for ARM devices to version 4.98e.
    • Updated: the STMicroelectronics ST-LINKIII-KEIL_SWO.dll to version 2.0.17.
  • [Supported Operating Systems]

MDK-ARM Version 5.15

Release Date: 29th May, 2015

  • [ARM Compiler]
    • This MDK release contains ARM Compiler 5.05u2 (build 169). All compiler related files located in ..\ARM\ARMCC\ directory. Details can be found in the Compiler specific Release Notes.
  • [uVision]
    • This MDK release contains µVision V5.15.0.
    • Improved: Support for multiple ARM Compiler Versions that allows now to Setup Default ARM Compiler Versions for each processor core.
    • Added: Support for Stack usage watermark in the System and Thread Viewer that is available with CMSIS-RTOS RTX V4.78 or higher. This also shows the maximum stack load during execution of a thread.
    • Improved: Icons in the Project Window for RTE Configuration Files indicate compatibility of current files with software components from new Software Packs. The new command Update Config File and Lauch Merge available from context menu in the Project Window simplifies the migration of existing configuration settings.
    • Improved: MDK now uses Semantic Versioning for Software Packs, software components, and configuration files.
    • Added: Set-up PC-Lint has a new option to include all project-target related folders for searching header files.
    • Added: Source Version Control System (SVCS) templates files for GIT and Tortoise SVN.
  • [Software Packs included]
    • Keil - MDK-ARM Professional Middleware 6.4.0
      The Keil::MDK-Middleware 6.4.0 Software Pack supports now ARM Cortex-M7 devices and solves a problem with File System (fpwd function) and Networking (HTTP server). Keil::MDK-Middleware 6.4.0 requires ARM::CMSIS 4.3.0 and Keil::ARM_Compiler 1.0.0 Software Pack.
    • ARM - CMSIS 4.3.0
      The ARM::CMSIS 4.3.0 Software Pack adds a CMSIS-Driver for Serial Audio Interface (SAI) and improves CMSIS-RTOS RTX with Stack Watermark and IRQ timing statistics. Included are also several other enhancements such as cache control functions for Cortex-M7.
    • Keil - ARM Compiler Extensions 1.0.0
      The Keil::ARM_Compiler 1.0.0 Software Pack contains the new Software Component Compiler that expands MicroLib with assert and enables I/O re-targeting via File System, UART, ITM debug channel, or user-defined functions.
  • [Target debugging]
    • Updated: Driver for Segger J-Link with bug fixes and support for JTAG clock speed: 20, 25, 33, and 50 MHz.
    • Updated: Driver and firmware for STMicroelectronics ST-Link to support the latest STM32 devices.
    • Updated: Driver for Nuvoton Nulink with bug fixes and support for M0519, NM1320 and Mini58 Cortex-M0 based devices.
  • [Pack Installer]
    • Improved: Selection of Devices and Boards lists Device Specific and Generic Software Packs and relevant Project Examples. When the Pack Installer is launched from uVision the device of the project target is selected.
    • Added: Output window that summarizes warning and error messages.
  • [Supported Operating Systems]

MDK-ARM Version 5.14

Release Date: 13th February, 2015

  • [uVision]
    • This MDK release contains µVision V5.14.0.0.
    • Improved download support for missing Software Packs where a fixed version is selected in the project. Before the latest version was downloaded.
    • At load time of a project the device name can be manually changed when the project was using an obsolete device that no longer available with the current Software Pack.
    • The new debug command SBC allows to control software breakpoints which is for example important for algorithm verification that calculate CRC over a code area.
    • The Event Viewer displays now also timing information for interrupt execution.
  • [ARM Compiler]
    • This MDK release contains ARM Compiler 5.05u1 (build 106). All compiler related files located in ..\ARM\ARMCC\ directory. Details can be found in the Compiler specific Release Notes.
    • The ARM Compiler 5.04u2 for safety critical applications is available from ARM Compiler download area (a registration or login is required).
  • [Software Packs included]
    • Keil.MDK-Middleware Version 6.2.0 and CMSIS Version 4.2.0.
  • [Target debugging]
    • Updated: ULink2 Firmware version update to 2.03 that fixes a potential problem with USB 3.0 ports.
    • Updated: Segger J-Link driver for ARM devices to version 4.96d that now supports Cortex-M7.
    • Updated: NuLink version 1.28.6386 with correct access to Flash algorithms from Software Packs.
  • [Supported Operating Systems]

MDK-ARM Version 5.13

Release Date: 18th December, 2014

  • [uVision]
    • This MDK release contains µVision V5.13.0.0.
    • With the new menu Project - Manage - Migrate to Version 5 Format ... an existing MDK version 4 project is converted to the new MDK version 5 format.
    • The toolbar Batch Build is now available also for single projects providing a convenient way to build a selection of project targets in one working step.
    • Missing Software Packs are detected by uVision and the PackInstaller is launched to download and install them while loading the project.
  • [Software Packs included]
    • Keil.MDK-Middleware Version 6.2.0 and CMSIS Version 4.2.0.
  • [ARM Compiler]
    • This MDK release contains ARM Compiler 5.05u1 (build 106). All compiler related files located in ..\ARM\ARMCC\ directory. Details can be found in the Compiler specific Release Notes.
    • The ARM Compiler 5.04u2 for safety critical applications is available from ARM Compiler download area (a registration or login is required).
  • [Target debugging]
    • Updated: Segger J-Link driver for ARM devices to version 4.91j.
    • Updated: STMicroelectronics ST-Link driver for STMicroelectronics devices to version 2.0.14.
  • [Supported Operating Systems]

MDK-ARM Version 5.12

Release Date: 24th September, 2014

This MDK version introduces support for ARM Cortex-M7 processor based devices.

Note: The STM32 Device Family Packs Version 1.x.x are incompatible with CMSIS Version 4.2.0 and MDK-Middleware Version 6.1.1. The compatible STM32 Device Family Packs Version 2.x.x will be released shortly. The application note 266 Using Keil MDK v5.11 with STM32 devices describes how to use the older STM32 Device Family Packs.

  • [uVision]
  • [Software Packs included]
    • CMSIS Version 4.2.0: Cortex-M7 related updates to CMSIS-CORE, CMSIS-DSP, CMSIS-PACK and CMSIS-SVD.
    • MDK-Middleware Version 6.1.1: Driver Network/Driver/ETH_KSZ8851SNL.c corrected an invalid power status in function MAC_PowerControl.
  • [ARM Compiler] This MDK release contains two ARM Compiler versions that can be selected in the dialog Project - Options for Target - Target (under Code Generation):
    • ARM Compiler 5.05 (build 41) (in directory ..\ARM\ARMCC\) with support for Cortex-M7 and other enhancements (see release notes).
    • ARM Compiler 5.04u2 (build 82) (in directory ..\ARM\ARMCC_504u2\) for safety critical applications in combination with the ARM Compiler Qualification Kit (only available with a license for MDK-Professional).
  • [FlexNet Floating Licenses]
    • Customers using FlexNet floating licenses are required to update their license server software to Version 11.12.1 or higher.
      Using older versions of the FlexNet license server will result in error messages by the ARM Compiler tools.
      FlexNet Licensing error:-96,7. System Error: 11001 "Comm. error"
    • FlexNet Version 11.12.1 License Server tools for Windows are located in the directory ..\Keil\UV4\FlexNet. For other operating systems please contact support.
  • [Target debugging]
    • Updated: Segger J-Link driver for ARM devices to version 4.91b.
    • Updated: NuLink software to version 6.3.14
    • Updated: STMicroelectronics ST-Link driver for STMicroelectronics devices to version 2.0.10.0.
    • Updated: ULINKPro\ULINK2\CMSIS-DAP driver to support Cortex-M7 based devices.
  • [Supported Operating Systems]

MDK-ARM Version 5.11a

Release Date: 17th June, 2014

This MDK release includes the Software Packs CMSIS Version 4.1 and MDK-Middleware Version 6.0 that are incompatible with the current STM32 Device Family Packs. The application note 266 Using Keil MDK v5.11 with STM32 devices describes the reasons and the resolution.

    This MDK release includes the following fixes over MDK Version 5.11:
    • Updated µVision (V5.11.1.0):
      • gpdsc file reload problem fixed (Infineon DAVE3)
      • Select Software Packs dialog control via keyboard fixed
    • Updated SystemViewer.dll (V2.28.0):
      • Periodic window update for child elements fixed
      • Abort on Display of LPC4300 GPIO registers fixed

MDK-ARM Version 5.11

Release Date: 12th June, 2014

  • This MDK release includes the following Software Packs: These Software Packs are compatible with the new DFP Version 2.0.x or higher for Infineon and NXP. All future DFP's will rely on the above Software Packs.

    NOTE: For using middleware with EnergyMicro and ST devices that are based on DFP Version 1.x select CMSIS V3.2.x and MDK-Middleware V5.1.x as described under Select Software Packs.
  • This MDK release contains the following new components:
  • ARM Compiler
    • The absacc.h header file has been removed from the ARMCC/include folder. Use the _attribute_ syntax instead of the macro __at.
  • Target debugging
    • Updated: STMicroelectronics ST-Link driver for STMicroelectronics devices to version 2.0.6.0 to support STM32L0 devices.
    • Updated: NuLink software to version 6.2.11

MDK-ARM Version 5.10

Release Date: 21st February, 2014

  • [µVision]
    • This MDK contains µVision V5.10.0.2.
    • This MDK contains Pack Installer V1.1. It features a new searchable right hand column, listing all supported Boards and Devices. Based on the selection available Software Packs and Examples are listed in the left hand column.
  • [ARM Compiler]
  • [Target Debugging]
    • Updated: Segger J-Link driver for ARM devices to version 4.80g.
    • Updated: STMicroelectronics ST-Link driver for STMicroelectronics devices to version 2.0.4.0. USB Drivers in ARM\STLink\USBDriver
    • Updated: P&E Micro driver for Freescale Kinetis devices to version 2.0.4.0.

MDK-ARM Version 5.01

Release Date: 17th December, 2013

  • [µVision]
    • This release includes an updated Software Pack schema definition. Software Packs that require this new schema version will not be compatible with older releases of MDK.
    • This MDK V5 release is delivered with µVision V5.1.0.0.

MDK-ARM Version 5.00

Release Date: 7th September, 2013

  • [Software Packs]
    • MDK-ARM V5.0 (MDK V5) introduces Software Packs which make device support and middleware updates independent from the toolchain installation. The MDK V5 installer contains the µVision IDE and Debugger, the ARM Compiler and the new Pack Installer which is used to manage Software Packs. Device support, CMSIS and MDK-Professional Middleware are delivered as Software Packs.
    • Software Packs can contain device database descriptions, CMSIS Core Device and CMSIS SVD files, as well as Flash Programming Algorithms and other Software Components. For more details refer to http://www.keil.com/pack/doc/cmsis/Pack/html/index.html.
  • [Software Installation and Updates]
    • The new Pack Installer is a utility for installing, updating, and removing Software Packs. In addition, it enables the user to copy example projects which are part of a Software Pack to a local folder.
    • A current set of Software Packs can be found on the MDK V5 Software Packs website at www.keil.com/dd2/Pack.
    • The MDK V5 Device List page at www.keil.com/dd2 shows all microcontrollers that are currently supported by Software Packs.
    • For devices that currently aren't supported by Software Packs, Legacy Support packages are available.
  • [µVision]
    • [Run-Time Environment] The Run-Time Environment (RTE) defines the software components that are used in a project. The new Run-Time Environment Dialog shows all installed Software Components that are available for the selected microcontroller.
    • [User Code Templates] User Code templates contain example code for frequently used functionality in software components that are delivered as a part of Software Packs.
    • [Project Files] µVision 5 introduces new project file extensions *.uvprojx, *.uvoptx, and *.uvguix to indicate projects that use RTE. The option Project - Manage - Use Run-Time Environment enables or disables RTE. When RTE is disabled, µVision 4 compatible project files are created.
    • This MDK V5 release is delivered with µVision V5.0.5.15.
  • [ARM Compiler]
    • This version of MDK-ARM contains ARM Compiler 5.03u2.
    • All compiler related files are located in ..\ARM\ARMCC\ directory.
    • Details can be found in the Compiler specific Release Notes..
  • [CMSIS]
    • This version of MDK V5 ships with the CMSIS 3.20 Software Pack.
    • The CMSIS Pack includes CMSIS-RTOS RTX, a CMSIS-RTOS compatible real-time OS.
    • CMSIS-RTOS RTX replaces MDK V4.x RTX. For project maintenance, MDK V4.x RTX is still available as part of the Legacy Support.
  • [Middleware]
  • [Target debugging]
    • Updated: The CMSIS-DAP driver now supports the Micro Trace Buffer (MTB) of Cortex-M0+ devices.
    • Updated: ULINK2 device firmware to version 2.02. This version removes the Windows warning "This device can perform faster if connected to USB 2.0".
    • Updated: Segger J-Link driver for ARM devices to version 4.76d.

Release Summary

    MDK-ARM – Version 5.00
    MDK-ARM – Version 5.01
    MDK-ARM – Version 5.10
    MDK-ARM – Version 5.11
    MDK-ARM – Version 5.11a
    MDK-ARM – Version 5.12
    MDK-ARM – Version 5.13
    MDK-ARM – Version 5.14
    MDK-ARM – Version 5.15
    MDK-ARM – Version 5.16
    MDK-ARM – Version 5.16a
    MDK-ARM – Version 5.17
    MDK-ARM – Version 5.18a
    MDK-ARM – Version 5.20
    MDK-ARM – Version 5.21
    MDK-ARM – Version 5.21a
    MDK-ARM – Version 5.22
    MDK-ARM – Version 5.23
    MDK-ARM – Version 5.24
    MDK-ARM – Version 5.24a

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