VPW to USB interface:

This is an interface which should reduce VPW OBD2 communications to USB/virtual com port PC-side commands. The firmware needs to be developed obviously, but the basis is here.

Revised 12/25/06 (yes, Christmas!)
- Deleted majority of 1206 components in favor of space-saving 0402 bits
- Finished layout, all connections now complete
- Labeled all components on both silkscreen (documentation) layer and in schematic
- Assigned values to majority of components
- Allowed spacing around 68HC58 which should allow socketing

This interface uses the following:
- FTDI FT232RL
- Motorola M68HC58
- Atmega8 with 10-bit A/D channels and crystal-driven USART up to 921.6k
- Standardized DB9 OBD2 side cable connector
- Pactec CNS-0407 enclosure
- Beefy USB connector
- 2-layer PCB layout
- Good noise reduction
- 3-channel A/D converter interface via Weidmuller 1615430000 4-pin terminal block
- ISP programming via edge card connector

This should be fun. Enjoy!

-Craig