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An ISP programmer for 8051 family, without a microcontroller
An ultra-simple bit of hardware to program the flash memory in AT89S51, AT89S52, AT89S8253, AT89S2051 and AT89S4051. Now you can program the firmware for an ISP programmer built with one of these microcontrollers, without needing an ISP programmer, or you could just use this ISP programmer.
Utility for programming an AT89S52 via a parallel port.
prog89S52 is a utility for Linux on the PC, allowing programming of Atmel's AT89S52 microcontroller via the parallel printer port. Atmel's 89S are programmable via an SPI port and therefore require absolutely no additional components in order to program them in-system.
This program requires a standard "Centronics" type PC parallel port (a bidirectional, EPP or ECP port is not required). A 5-way cable is required to connect the microcontroller to the port; wiring information is given in the included manual page.
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gnuProload is a tool for programming the AT89S52 microcontroller over Linux. Actually it is a Linux port of the 'Proload' and (easy-downloader) software created by Sunrom Technologies which can be used to program AT89S52 microcontrollers.