Starting with version 5.40, Microchip transitioned MPLAB X to a pure 64-bit application. Since MPASM was a 32-bit tool and had reached its end-of-life for development, it was dropped from subsequent releases. This left developers with legacy projects in a difficult spot: they either had to rewrite their code for the newer PIC-AS assembler or stay frozen in time with v5.35. Key Features of v5.35 Last of the MPASM:
If you encounter issues during or after installation, check these common problem areas.
is widely considered a "landmark" version of Microchip’s development environment because it is the final release to include the MPASM™ assembler . For developers working on legacy PIC® microcontroller projects or those using assembly language, this specific version is essential for maintaining compatibility. Where to Download mplab 5.35 download
: For 16-bit PIC microcontrollers and dsPIC digital signal controllers. XC32 : For 32-bit PIC and SAM microcontrollers. Installation Best Practices
Downloading it is a straightforward process but requires following these steps carefully to avoid downloading the latest version by mistake. Starting with version 5
Because v5.35 is no longer the "current" version, it is not found on the main product page. You must navigate to the MPLAB Ecosystem Downloads Archive on the official Microchip Technology website. MPLAB® X IDE - Microchip Technology
Windows 10/11, Ubuntu 18.04+, or macOS 10.15+ (64-bit required) Minimum 4 GB of free hard drive space RAM 4 GB minimum (8 GB recommended) Peripherals Available USB ports for hardware debuggers and programmers Installation Steps Key Features of v5
Download the installer tailored to your specific operating system: : MPLABX-v5.35-windows-installer.exe Linux : MPLABX-v5.35-linux-installer.sh macOS : MPLABX-v5.35-osx-installer.dmg System Requirements for Version 5.35
: Starting with version 5.40, Microchip transitioned to a 64-bit-only architecture and deprecated the 32-bit MPASM. Developers with older assembly code often must use 5.35 to avoid extensive rewriting.