This is yet one more new topic. New to me. Old to people with more sense than I have. I design my first AVR
processor board and call it 'VAX' which is short for
| Verhoeven |
OR |
Versatile |
| Avr |
Avr |
| eXperiments |
eXperiments |
You decide which name is correct or best. I already made up my mind. :o) Anyway, this is your chance to start
owning a real VAX.
The aims for the VAX 01 processor board are:
- Gain experience with the ATmega 16 and related AVR processors
- Use the VAX as a first target system for my PLOV compiler
- Get an autonomous data collection system
- Get a standalone control system
- Have fun with a modern and good processor
It took some puzzling and rethinking but I managed to route this circuit on a half Euro board (80 x 100 mm,
the maximum allowed by Eagle Light). I must say I used both layers. The board is choc full, due to the
components all being DIP and through hole.
The VAX 01 board has the following feratures:
- AT Mega 16 processor
- MAX 698 reset controller
- 16 MHz canned oscillator
- 9 Pin serial port with MAX 232A buffer
- Transzorb protected power section
- All I/O signals brought out to real world
- All 8 ADC inputs dimensioned, protected and brought to the outside world
- I2C signals on seperate connector
- IRQ signals on seperate connector
- Industry standard 10 pin ICSP connector
- RIA Springcon connectors: no tools required to (dis)connect wires
- High precision, adjustable 2.5 Volt reference
- All IC's socketed
- Double sided printed circuit board with wide traces (where possible) and power/ground planes
- Small form factor
- Soft- and hardware available under the GPL
