⚠️ : Many old programming tools are flagged by modern AV due to low-level port I/O. Use isolated old PC or sandbox.
: Developed in Delphi 7, the software is self-contained and does not require additional external libraries to run. Compatible Hardware and Devices ProLoad V4.1 for 89 Series programmer.13
For developers looking to protect their intellectual property, ProLoad V4.1 allows users to set lock bits. This feature restricts reading the flash memory of the chip, ensuring that the hex file cannot be extracted or copied by others. ⚠️ : Many old programming tools are flagged
| Family | Common Models | |--------|----------------| | 89C51 | 89C51, 89C52, 89C55 | | 89S51 | 89S51, 89S52, 89S53, 89S8252, 89S8253 | | 89LV51 | Low voltage variants (2.7–3.6V) | | 89V51RD2 | (Partial support with manual config) | Compatible Hardware and Devices For developers looking to