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2025-01-31
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This article introduces the installation steps for C51 and MDK in Keil software, as well as the manual configuration for the license issue of the latest v6 compiler
The latest version no longer works with the method below. The v6 version of ARMCC can be used normally, but the v5 version prompts that there is no license. It is recommended to find the v5 version of the MDK installation package to install. For the v6 version, it is recommended to use the VSCode plugin
C51 Installation
- First, go to the official website and click to download C51
Here you will be asked to fill out a form, just fill it out briefly, and then click the downloaded exe installation package to install
- After entering the installation, confirm all the way. When choosing the installation location, I chose to install it on the D drive instead of the default C drive.
- Finally, click Finish to complete the installation successfully
MDK Installation
The two software, Keil’s MDK and C51, can coexist, and the installation steps are similar.
- First, still visit the official website to download the MDK installation package
After entering the installation, fill in the installation location like this, and change it according to the C51 installation location
MDK Installation Location Finally, click Finish to complete the installation successfully
Note: Do not reverse the installation order of C51 and MDK
v5 Compiler
First, download the v5 compiler. Because the official website no longer seems to provide a direct download channel, you can only download a previous version of Keil to extract the v5 version of the compiler. Here is the extracted compiler that can be downloaded directly
After downloading, extract it to the D:\Keil_v5\ARM directory
Open Keil, create a new project casually, and then click this buttonFile Extensions, Books and Environment…
Then clickFolder/Extensions, clickUse ARM Compilerthis button next to it
Click the one belowAdd another ARM Compiler Version to List, select the ARMCC path you just extracted
After saving, it’s successful