MCS51 platform
A question, a problem or a suggestion, don't hesitate : a little email
Project aim
A software and hardware test platform for MCS51 based projects.
With :
- A PC-AT keyboard,
- A 400*64 LCD display,
- Outputs for 2*16 LCD, I2C bus, RS232, extension,...
General schematic
The general block diagram of the platform.
The link allows to connect, so to test, boards with the new connector standard ("Peri01") that I use now (except for interrupt).
See aquarium controller page for the direct connection of a display.
Processor schematic
I am actually using the "8031 base 1" processor board with 8k of EPROM and 32k of RAM.
Click on the picture to get the details for this board.
Power supply/serial link schematic
The power supply scheme (using and external standard supply block) without the battery option that I initially have in mind but don't have the need for, until now.
400x64 display schematic (1/2)
The graphic display part built with an (old) display and an homemade controller (here the source and binary files of the GALs).
400x64 display schematic (2/2)
I recommend to use one of the new displays including their controller connected to the board as the same manner than the double 16 characters ones.
I have made a PCB (with a consequent hand wiring). Send me an email if you want it.
Software
Monite14.zip (4 k) file (19/04/2021) including :
- MCS51 binary file (intel-32 format),
- Its documentation (with the PC serial link configuration needed).
The software reduced to a monitor, allowing a PC, through a serial RS232 link, to remotely test some hardware (read/write of a board under test for instance) and/or to download a software under design in the platform.