Simple Serial Downloader for AT89S51/AT89S52

Posted on by Sulhan Setiawan
Posted in Development Tools, IDE (Integrated Development Environment), Microcontroller, All

SDownldr.exe is a software to program a AT89S51/AT89S52 serially through the parallel port. This Software is included in the Microcontroller Project Circuit diagram for this ISP downloader is as follow: The Serial Downloader circuit above using the power supply from the parallel port. However, not all parallel port capable of providing enough current for this […]