The 8051 development board provides an easy-to-use and low-cost way to develop your 8051 based microcontroller projects, without purchasing any other special equipment, such as IC programmers or emulators. All required software is available... Electronics Projects, 8051 Sample Application and 8051 Development Board
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The 8051 development board provides an easy-to-use and low-cost way to develop your 8051 based microcontroller projects, without purchasing any other special equipment, such as IC programmers or emulators. All required software is available as a free download, including a C compiler
Standard 87C52 CPU clocked at 22.1184 MHz
50 I/O lines!! All I/O lines are clearly labeled and available at the edge of the prototype construction area
32k SRAM, program variables and code (24k usable for code download)
30k Flash ROM, non-volatile program storage and data logging
High speed baud rates: 115200, 75600, 38400, etc. All standard baud rates are supported (except 300 baud)
Display port, works with standard character-based LCD A 16×2 display will be available from PJRC (see photo below)
Eight LEDs, controlled by 8 dedicated I/O lines (not shared with the 50 I/O lines)
Bus expansion with 4 chip select signals, for adding UARTs, A/D converters and other bus-based peripheral chips.
Unregulated, polarity-protected DC voltage input with 2 position terminal block.
PAULMON2 monitor for easy code development without additional equipment.
DC Voltage, 8 to 15 volts (regulated), 50 mA or 300 mA with LCD.
PC Computer With Serial Port, Linux or Microsoft Windows 95-OSR2, 98, 98SE, NT4, 2000.
Assembler or Compiler, usually AS31 or SDCC
Terminal Emulation Program, eg Hyperterminal (windows), Minicom (linux)
Text Editor Program, eg Notepad, Vi, Emacs
Standard 9 pin serial cable (straight through, not null-modem!)
Source: pjrc.com/tech/8051/board4/index.html 8051 Sample Application and 8051 Development Board pcb code alternative link: 8051-sample-application-and-8051-development-board.rar, link2, link3
Alternative File Download LINK list (in TXT format): LINKS-2493.zip