Why choose Asprogrammer 2.1.0.13 over other tools?
| Software | Price | Best For | Limitation | | :--- | :--- | :--- | :--- | | Asprogrammer 2.1.0.13 | Free | CH341A users, hobbyists | No 1.8V logic level support (hardware mod required) | | NeoProgrammer | Free | Advanced chip support (over 30,000 chips) | Slower UI, larger footprint | | CH341A Programmer (stock) | Free (basic) | Quick tests | No hex editor, fewer chip definitions | | Flashrom | Free (CLI) | Linux automation | No GUI, steep learning curve | | TL866CS Software | Paid ($80+) | Professional production | Expensive hardware lock-in | Asprogrammer 2.1.0.13 Download
Conclusion: For a free tool using cheap hardware, Asprogrammer 2.1.0.13 is unbeatable. Why choose Asprogrammer 2
If you need an older build (e.g., 2.0.0.9):
→ Releases page If you need an older build (e
| Problem | Solution |
|--------|----------|
| “CH341A not found” | Reinstall driver, use a USB 2.0 port |
| Verification fails | Lower speed in settings (e.g., 1 MHz) |
| Chip not listed | Add custom definition via .ini file |
| Writes but doesn’t boot | Check adapter voltage (3.3V vs 5V) |
⚠️ Warning: Avoid "driver download" websites that claim to offer the file but require a survey or payment. Asprogrammer is 100% free and open-source under the GPL license.
AsProgrammer 2.1.0.13 is a Windows utility (portable) for programming serial memory chips (SPI, I2C, Microwire) and supports many hardware interfaces (UsbAsp/UsbAsp-flash, CH341A/CH347, Bus Pirate, FT232H, Arduino, AVRISP). It’s a community-driven tool based on the UsbAsp-flash project and forks/mods exist (e.g., dregmod). Version numbering around 2.1.x is associated with the UsbAsp-flash/AsProgrammer family; 2.1.0 and later added CH347/CH341 and other device support. Download links commonly appear on GitHub releases and occasional Google Drive mirrors; verify authenticity before running.