Asprogrammer+21013 ❲2026❳
This comprehensive guide will cover everything you need to know about this pairing, from installation and driver fixes to advanced debugging.
Often referred to as a "burning programmer software" in many circles, ASProgrammer has proven itself to be a valuable tool for hardware development, chip debugging, and firmware flashing tasks. Its lightweight nature (around 1.47 MB) and green-portable design mean it can run directly from a USB drive without a heavy installation process, aside from driver setup.
Use the "Status Register" option to unlock (unlock block protection) the chip before trying to erase or write.
More commonly, 21013 appears as an in the ASProgrammer status bar. It usually reads: asprogrammer+21013
A CH341A USB programmer (often called the "Black Edition").
Symptom 2: Software returns "Unknown IC" or 0xFFFFFF / 0x000000
Disclaimer: Always back up your original firmware before writing anything. The author is not responsible for bricked devices. This comprehensive guide will cover everything you need
If your programming sequence halts or fails at a specific junction, the issue almost always boils down to signal integrity or hardware mismatches. 1. Poor Signal Integrity and Wiring Length
Absolutely. For under $10 (programmer + clip), you get 80% of the functionality of a $100 Dediprog. It’s not the fastest (SPI clock ~3MHz), and you need to be careful with voltage levels, but for hobbyists and repair shops on a budget, nothing beats it.
SPI (Serial Peripheral Interface) communication is highly sensitive to resistance and capacitance. Use the "Status Register" option to unlock (unlock
If the chip is in-circuit, try removing it and placing it in the socket adapter. In-circuit programming often fails due to motherboard circuitry interfering with the signals.
Firmware modification and recovery are critical skills for system administrators, repair technicians, and hardware enthusiasts. When BIOS chips become corrupted, or when upgrading components requires custom firmware, having the right tools is essential. While the CH341A programmer is a standard, inexpensive hardware choice, its effectiveness relies heavily on the software used to communicate with the flash chip.
Windows 10/11 often misidentifies the CH341A as a "USB-EPP/I2C" device but fails to load the correct driver.
This article will guide you through the features, installation, and usage of AsProgrammer (2.1.0-2.1.2) for reliable firmware manipulation. What is AsProgrammer?