An issue has been identified that impacts the debugging of older LPC devices using SEGGER Jlink via the version of MCUXpresso IDE v11.0.1 released on 4th September 2019.

This issue will be seen only when debugging an LPC device that use the IDE's Preinstalled part support i.e. parts that do not require an SDK - a debug operation via SEGGER Jlink will lead to an error as below:

We are pleased to announce that MCUXpresso IDE v11.0.1 (build 2563) is now available.

This is a maintenance release that builds upon the previous MCUXpresso IDE v11.0.0 release, and we recommend that all existing users download and install this new version. It also incorporates a minor update to the integrated MCUXpresso Config Tools.

Dear sdk developers,

During our development, more and more components are joining our sdk. It is necessary for the component sections recorded in yml data to follow a simple and effective naming convention, so that they can be well organized, identified and processed.

Here we provide the doc of Yml Data Record Component Naming Conventions, please kindly review and follow the rules in your future development.

This tutorial demonstrates how to convert a Tensorflow model to TensorFlow Lite using post training quantization and run the inference on an i.MX8 board using the eIQ™ ML Software Development Environment. It uses a TensorFlow mobilenet_v1 model pre-trained with ImageNet.

NOTES:

1. Except for the section "Build Custom Application to Run the Inference" this tutorial can also be applied to any i.MX RT platform.

2. For more information on quantization check the 'QuantizationOverview.pdf' attached to this post.

The Windows installer for SEGGER J-Link has changed behaviour for version after V6.44 i.e. after the version installed with V11.0.0 of the IDE. Previously each SEGGER installation was located in a versioned directory e.g. JLink_V644g, now each new installation will by default, write to C:\Program Files (x86)\SEGGER\JLink.

This change will only impact Windows users who manually install a later version of SEGGER J-Link for use within MCUXpresso IDE.

I think this might be late since I was using Ubuntu 18.04 until recently when I upgraded to latest version 19.04

Tried to install Mcuxpresso IDE I encountered some dependency errors but managed to solved it. I had already replied to question about it but decided #to write main post about it.

In March of 2017, NXP released the debut version of the MCUXpresso SDK along with an IDE and set of Config Tools under the same MCUXpresso name.  Since that time we have seen an amazing response from developers downloading and using this suite of software and tools.  The number of MCUXpresso SDK downloads recently surpassed 100,000 unique downloads.

As the NXP and former Freescale microcontrollers were unified under one company, we knew we needed to provide a consistent and efficient software development platform – one that would allow you  the flexibility to develop on a wide range on NXP microcontrollers without the need to relearn a new software architecture or re-invent basic enablement functionality.

Machine Learning at the Edge:

eIQ Software for i.MX Applications Processors

Developing machine learning (ML) applications for embedded devices can be a daunting task. For the traditional embedded developer, the learning curve can be quite steep, as there are numerous decisions that must be made and new jargon that must be learned. Which framework should I choose? Which model best meets the requirements of my application and how do I know when it’s good enough? What “size” microcontroller or application processor do I need? The questions are many and figuring out how to get started can prove to be a challenge.

LPC845 Breakout Board now has an SDK package available! We are working on updating our getting started information to show how to use this rather than starting from the LPC845 chip SDK. The board is called LPC845BREAKOUT in the SDK builder.

If you need to create you own SuperSet, following steps should help you.

First of all you need mcu-sdk-2.0 repository with current submodules. Then you need to create some release config e.g. release_config.yml on you disk. Release config format can be found here. Devices, boards or kits names referenced in release config are case sensitive!

New features update:

•  SDKGEN-982Support adding all folder content recursively

        Generator now supports adding all files and all files of its subfolders under some directory recursively with wildcard.

We are pleased to announce that MCUXpresso Config Tools v6 are now available.

MCUXpresso Configuration Tools is a product with set of tools that help users of all levels with a Cortex-M-based MCU solution.

New versions of MCUXpresso SDK, IDE, and Configuration Tools are now available. In addition to new product support, you will find these updates and enhanced features in the new releases

SPDK (Storage Performance Development Kit) is an optimized storage reference architecture. It is initiated and developed by Intel.

SPDK provides a set of tools and libraries for writing high performance, scalable, user-mode storage applications. It achieves high performance by moving all of the necessary drivers into userspace and operating in a polled mode, like DPDK.

We are pleased to announce that MCUXpresso IDE v11.0.0 (build 2516) is now available.

This is a major new version of the IDE, and contains many new features and enhancements over the previous MCUXpresso IDE v10.3.1 and earlier releases. The attached presentation, recommended viewing for all users (new or experienced), provides an overview of many of the major changes, as well as things to be aware of when upgrading from an earlier release

This article discusses the use of SDK Trustzone example (Hello World) for the LPC55S69 MCU within MCUXpresso IDE.

The following are required to follow this blog post:

1. MCUXpresso IDE Version 11.0.x
2. LPCXpresso 55S69 EVK development board
3. LPCXpresso 55S69 EVK version 2.6 SDK

When using the QN9080 with SDK v2.2 2019-01-29, or earlier, there is an issue in the SDK internal data which can lead to MCUXpresso IDE v11.0.0 failing to set consistent floating point options when importing multiple examples.

• Disable hw_prefetch (u-boot):

setenv hwconfig 'fsl_ddr:bank_intlv=auto;core_prefetch:disable=0xFE'

qixis reset altbank (reset the board - in case using bank 0 run 'qixis reset' only)

• bootargs or othbootargs - add below parameters to bootargs (u-boot).

                  Make sure you see the same in ‘cat /proc/cmdline’ once kernel is booted:

- use 1G hugepages:

default_hugepagesz=1024m hugepagesz=1024m hugepages=6 (or any number)

- isolate cpu's for user space (for the CPUs running DPDK without kernel interference):

isolcpus=1-7

- make sure no rcu stalls and watchdog prints:

nmi_watchdog=0 rcupdate.rcu_cpu_stall_suppress=1

With the cost of an single pin, many ARM Cortex-M boards including the NXP i.MX RT1064 can produde SWO data: think about a pin able to stream data out of the chip in realtime.

GmSSL is an open source cryptographic toolbox that supports SM2 / SM3 / SM4 / SM9 and other national secret (national commercial password) algorithm, SM2 digital certificate and SM2 certificate based on SSL / TLS secure communication protocol to support the national security hardware password device , To provide in line with the national standard programming interface and command line tools, can be used to build PKI / CA, secure communication, data encryption and other standards in line with national security applications. For more information, please access GmSSL official website http://gmssl.org/english.html.

New features update:

•  SDKGEN-967Support to automatically hide doc files in Xtensa workspace

         Previously for Xtensa toolchain, developers need to use "hidden: true" in yml to hide documentation files in the                 workspace.
         Now generator can filter files by type attribute to bypass doc type file for Xtensa, which means files with .txt .rtf                 .html .htm .readme .pdf .Doxyfile .xls .css extensions will not be added into the Xtensa workspace.

In my previous articles I have used the command line on Linux to build and debug NXP MCUXpresso SDK applications. In this article I'm running code on NXP i.MX RT1064 in RAM or FLASH.

Hi Team,

I would like to share python script for yml verification. It compares yml record with content of physical component folder. Provided information is:

• Print list of components in yml.
• Show which files are in yml, but not on disk.
• Show which files are on disk, but not in yml.

Amazon Web Services has released a preconfigured FreeRTOS example for Armv8-M and the NXP LPCXpresso55S69 board. With the addition of board- and device-specific examples, it is even easier to start and use the Arm® TrustZone® features combined with MPU (Memory Protection Unit) on the NXP LPC55xx MCU.

GmSSL是一个开源的密码工具箱，支持SM2/SM3/SM4/SM9/ZUC等国密(国家商用密码)算法、SM2国密数字证书及基于SM2证书的SSL/TLS安全通信协议，提供符合国密规范的编程接口与命令行工具，可以用于构建PKI/CA、安全通信、数据加密等符合国密标准的安全应用。GmSSL项目是OpenSSL项目的分支，并与OpenSSL保持接口兼容。因此GmSSL可以替代应用中的OpenSSL组件，并使应用自动具备基于国密的安全能力。GmSSL项目采用对商业应用友好的类BSD开源许可证，开源且可以用于闭源的商业应用。

The ARM TrustZone is an optional secu=rity feature for Cortex-M33 which shall improve the security for embedded applications running on microcontroller as the NXP LPC55S69 (dual-core M33) on the LPC55S69-EVK.

This article covers the NXP LPC55S69-EVK board: a dual ARM Cortex-M33 running at 100 MHz with ARM TrustZone

Comprehensive information about SDK SW components and SDK release describing YML can be found in the Yml data record guide here:

http://10.193.108.154:4000/mcu-sdk-generator/doc/Yml%20data%20record%20guide.html#add-a-middleware-y...

Example

We need to build a dependency from the eIQ component to the CMSIS DSK Library component.

New features update:

•  SDKGEN-924Support to automatically link secure and non-secure projects in Mcuxpresso IDE

        This feature supports to link trustzone projects. In MCUXpresso IDE, if you select a secure project or non-secure         project, the other trustzone paired project will be selected automatically.
        In order to enable the feature, "linked_project" need to be set for both projects.

In “Tutorial: MCUXpresso SDK with Linux, Part 1: Installation and Build with Maked” I used cmake and make to build the SDK application. In this part I’m going to use the command line gdb to debug the application on the board.