[Windows 10 Device Manager] │ └───► Ports (COM & LPT) │ └───► CP2102 / CH340 Controller │ └───► Properties ──► Advanced ──► Reassign to COM2 Reassigning the Port via Device Manager
Windows 10 blocks unsigned drivers by default. Many older Willar drivers are not digitally signed, so you need to allow them:
The (often associated with the executable WLPRO.exe ) is a specialized utility designed for burning firmware or .HEX files onto microcontrollers, primarily from the 8051 and AVR families . It is commonly used with low-cost USB hardware kits to program chips like the Atmel 89S51, 89S52, and various serial EEPROMs. Key Features willar programmer software for windows 10
The is a dedicated, lightweight utility used by embedded hardware engineers and hobbyists to flash firmware onto microcontrollers and serial EEPROMs. It serves as the primary software interface for widely used budget hardware programmers like the SP200S, SP200SE, and SP300 series .
Move the WLPRO or Willar folder directly onto your C:\ root directory or your desktop path. Avoid nesting it deep inside Program Files (x86) to prevent user account control access complications. Fixing the Windows 10 COM Port Bottleneck [Windows 10 Device Manager] │ └───► Ports (COM
Though the software's last major updates date back to around 2013–2014, it remains functional on modern operating systems.
Note: Always ensure that the software executable is obtained from a reputable source to avoid security risks associated with unsigned software. Key Features The is a dedicated, lightweight utility
The term "Willar" typically refers to a family of low-cost, parallel port or USB-based device programmers popular in the early 2000s—most notably the and Willar-5000 series. These programmers were designed to support a wide array of chips, including:
Check the box at the bottom labeled . Click Apply and launch the software. Standard Flashing Workflow: Keil to Willar
However, for legacy EPROMs and specific WILLAR-loyal chips, nothing beats the original.
: You can find the utility on portals like Software Informer or via manufacturer-provided links on sites like NSK Electronics .