Reading, writing, and erasing SPI Flash and I2C/Microwire EEPROM.
: The software is portable, meaning it requires no installation—just unpack and run.
Earlier versions had a dangerous habit: misinterpreting preserved EEPROM bits during full chip erase. v2.1.0.19 introduces – you can now modify fuse.high without resetting fuse.extended . For AVR programmers using Optiboot or custom bootloaders, this prevents accidental lock-bit suicide.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Neo Programmer 2.1.0.19
: Secure the chip in the ZIF socket or via a SOIC8 test clip. : Click the "?" (Detect)
Built-in view to inspect and modify firmware data before flashing.
: Use the "Detect IC" button to automatically identify your chip. Always back up your original data Reading, writing, and erasing SPI Flash and I2C/Microwire
NeoProgrammer 2.1.0.19 is a lightweight, designed to read, write, erase, and verify data on a vast collection of EEPROM, Flash, and MCU memory chips. Because it is a zero-installation application, you can unpack the NEOPROGRAMMER V2.1.0.19.zip archive to any directory or USB drive and run it immediately.
Neo Programmer 2.1.0.19 is widely used across various domains:
Backing up functional firmware from one chip to be written onto a new, blank chip. Troubleshooting & Tips for Using 2.1.0.19 This link or copies made by others cannot be deleted
NeoProg.exe /device="W27C512" /operation=read /file=rom.bin /vcc=5.0 /vpp=12.75
: 2.1.0.19 Release date : January 2026 (assumed, based on version history) Download : Via official Xgecu forum (freeware, donations encouraged)
Given the trajectory, expect in 2.2.x:
> So I will give you a choice.