8051 Development Board, Rev 5
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 LCDs. A 16x2 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
- PAULMON2 monitor for easy code development without additional
LCD Display Port
The 8051 development board's LCD port provides the 14 signals
needed for standard character based LCD modules. A 20x2 display
is available from PJRC:
- 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!)