In above figures you can find the schematic of the development board, a print screen
of the monitor, an example program written in assembly language for testing the
functionality of the board and a program sequence to be included in EPROM.
All these were designed by us.
Because of the particularities in schematic design, it is required to run an initialization
subroutine (figure 7) at the beginning of the program resident in EPROM. If a monitor
program is used, the initialization sequence must also be included.
In Windows 7 or Vista you will no longer find the HyperTerminal
software used for serial connection. As an alternative, you can use Putty (Telnet, SSH, terminal
emulator), an excellent free software.
Disclaimer: The information on this web site is provided "AS IS", without warranty of any kind.
The author has made the best efforts to ensure the design and the information provided are reliable.
Under no circumstances shall the author be liable for any direct, indirect, incidental, special
or consequential loss, damage, expense or injury incurred or suffered which is claimed
to resulted from use of this site, even if expressly advised of the possibility of
such loss, damage, expense or injury,
including, without limitation, any fault, error, omission, interruption or delay with respect thereto.
 - Philips Data Handbook IC20: 80C51 Based 8-Bit Microcontrollers
The final word on the 8051 by Matthew Chapman
 - Keil C51 Development Tools