Jesse Garcia

#1:Installing and Activating LPCXpresso IDE

Blog Post created by Jesse Garcia Employee on Nov 21, 2016

Links to material being referenced:


LPCXpresso IDE Download


Setup Guide


This guide will be the first of many entries where I will show you how to get started with LPC. Today this entry will focus on setting up the IDE and highlighting which products are supported by LPCXpresso IDE.


  1. Visit the link at the top of the post that will direct you to the LPCXpresso IDE page. As of this time, the current version is v8.8.2
  2. Click the gray download linkNote: You will need an account in order to download the IDE. Login or create an account
  3. Once signed in you will be presented with the following windowThis guide assumes you will install on Windows. The steps will be more or less the same regardless of which operating system is utilized for the installation. We will register the software in a later step.
  4. Once you've selected your operating system you will be presented with the following options

    It is always recommended that you download the most recent version of the IDE but links are provided for previous editions, if necessary.  Clicking on the link automatically starts the installer. Each installer serves as a standalone package. If you are upgrading to the newest version, keep in mind that the old version remains on the computer. You may opt to manually uninstall old versions.
  5. Once you launch the installer and agree to the licensing terms, you will be prompted for an installation directory. Use the default directory.


    Note: C:\nxp contains all LPCXpresso installations. You can open previous versions here if needed.

  6. Once the software installation finishes you will be prompted to install various drivers. You can select "Always trust software from 'NXP Semiconductors USA. Inc.'" to not have to individually approve each driver's installation.

  7. You will be presented with the following window once the installation process has completed. You are free to review the version documentation and the IDE User Guide if you wish.

  8. Once you launch LPCXpresso for the first time, you will be presented with the following window letting you know that you do not have an active license for the IDE. This limits you to debugging code up to 8k in size.
  9. In order to increase this limit we need to request a free license by clicking on help in the task bar. Then scrolling down to "Activate" and selecting "Create serial number and register (Free Edition)"
  10. A new window will come up with your serial number as shown below. Select "Open in external browser" to open up a browser window to generate the activation key.
  11. Once the new browser window loads you will be presented with your activation key listed below the serial number. Highlight and copy this key.
  12. We are going to follow a similar process to what we used to request the activation key but instead we will select "Activate (Free Edition)"
  13. Paste the activation key into the new window that pops up
  14. Once you press OK you will receive confirmation that your copy of LPCXpresso has been licensed. This allows you you to use all of the features of the IDE as well as raising your debug limit to 256k.
  15. You will be prompted to restart LPCXpresso and when it relaunches the welcome page will show that your copy is fully activated.

    Note: Once you have an activated key, this key will also be utilized by MCUXpresso in the future. 


This tutorial demonstrated how to set up the free edition of LPCXpresso, however, activating the Pro edition is very similar.

As of this writing LPCXpresso IDE v8.8.2 can be used to develop on the following platforms:

  • LPC81x/LPC82x/LPC83x
  • LPC11xx
  • LPC11Uxx
  • LPC11Exx
  • LPC12xx
  • LPC13xx
  • LPC15xx
  • LPC17xx
  • LPC18xx
  • LPC2xxx
  • LPC3xxx
  • LPC40xx
  • LPC43xx
  • LPC5410x/LPC5411x


Next week, I will demonstrate how to install and setup IAR and KEIL for LPC. In the coming weeks, once I have shown you how to configure the software environments I will post getting started guides with different LPCXpresso development boards. Stay Tuned!