arduino

arduino zombie

At my first employer, we had a 19" Eurocard bus system that puts the 8051's data and address bus on the backplane. This meant that you could use a loooooot of additional cards. But development with KEIL and the 80c517a was sometimes rather laborious, so you either had to burn eeproms or use KEIL's mon51. Between customer projects, I created this Arduino zombie that addressed the C51 bus along with some basic C functions. This was, of course, much more convenient.

short picture story

I cut out the outline of a proto shield from an 8051 µC board and glued the proto shield in with 2k glue. At the bottom right you can see a 5V converter that supplies the MMIO modules.

Fully assembled front panel without plugged bus drivers.

The Arduino Mega must be modified to connect the clock out of the ATMega to a PIN. The clock out supplies CPLDs and various other chips with a clock.

Backside with the Arduino

With backplane and some GPIO MMIO modules