Asprogrammer 21013 2021 [portable] Download Now

Includes an "Auto Detect" feature for 25-series SPI chips to automatically identify the manufacturer and model.

| Problem | Solution (Specific to v21013) | | :--- | :--- | | | The driver was installed incorrectly. Use Zadig to force install libusb-win32 (not WinUSB). | | Verify fails at 50% | Your chip is likely a 3.3V logic chip, but the CH341A runs at 5V. You need a level shifter. Version 21013 is sensitive to voltage droop. | | Program hangs at 100% | Close the software, unplug the programmer, plug it back in, and re-launch. This is a known USB buffer bug in 21013. | | Chip not in list | Version 21013 has ~400 chips. For a missing chip, upgrade to NeoProgrammer (a fork), but note that may cause other issues. | | False antivirus alert | Version 21013 rarely triggers alerts, but if it does, add the folder to your AV exclusions. The file is safe; older Delphi compilers sometimes mimic virus behavior. | asprogrammer 21013 2021 download

Looking for the ASProgrammer 21013 2021 version? This post covers where to find it, how to install it, and why this specific build is still a favorite for CH341a users. Includes an "Auto Detect" feature for 25-series SPI