S100 Model Features Intel's 87C51 Microcontroller Bootloader plus 16 and 32bit Math Routines in ROM 32K Program-Data SRAM. 17 I/O Lines. RS-232 Serial Port. Size: 3.5" x 2.4" (8.89cm x 6.10cm).

Only a 5V power supply and serial connector are required to start running programs.

Programs can be uploaded with the ROM's bootloader through the serial port on to the board's 32K SRAM

To make it easier for beginners, several subroutines have been preloaded into the 87C51's ROM, such as:

16 and 32bit math routines (Add, Sub, Mul and Div)
Print to host computer or LCD.

Since you'll be writting/running programs to/from SRAM and not to/from FLASH, you won't have to worry about any write/erase cycles such as that that FLASH's memory life is limited by.

No surface mount components to worry about, the 87C51 and SRAM are both DIP socketed components.

NOTES:

--- The Bootloader and extra routines make up about 1.4K of the 4K ROM, so if you have routines that you'll like to be added into the 87C51's ROM, send us the source code and we'll do so free of charge. ---

Although the S100 has it's own bootloader, due to its PCB design, it is not capable of programming EEPROMs, they must be previously programed with an EEPROM programing device or with our P500 or T1 boards.

Easily allows installation of a switch to switch between using the CPU in 8031 or 8051 modes.

A MAX232 IC and a Latch IC are also part of the board's components.