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New Rev 4 Board |
A newer version (Rev 4) of
this circuit board is available. Rev 4 includes a faster CPU,
more memory, more I/O and an optional LCD. We recommend you use
Rev 4 for new projects. We are keeping these very old pages on-line
for reference to assist people who build the original version of
the 8051 development board.
The very old design is difficult to troubleshoot due to
the use of an external 27C64 EPROM for the monitor program. We highly
recommend you use the new design for any new projects.
some simple example programs... some notes about how to program
the 8051.
some simple circuits to interface leds, speakers, relays, etc to
port1 and the 82C55 lines.
some hints about the 8051's built in timers, interrupts, UART and
how to do some neat tricks with them.
some hints about how to migrate a design from the development
board to a dedicated system... and common errors that turn up
when PAULMON is not used anymore.
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Development Board
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