As so many people on these lists have purchased the dt106smp 87x proto
boards seen at:
http://www.dontronics.com/dt106.html
you should be aware of the following.

During our final schematic check out and hardware test (also known as
Don's Friday night beer drinking session), we found a schematic error
that gave us an incorrect net list and final artwork fault on the
dt106smp boards.

If you wish to use the 10 pin header on the DT106SMP boards as an
isolate and program/run board, you will need to isolate pin 11 of the 40
pin chip, as VCC and VDD are connected together via the chip itself. To
do this you will need to cut the track that runs on the component side
of the board to pin 11. With pin 11 left now unconnected, all is fine.
You can also bend the pin so it is outside the socket. This has been
fixed on the final board.

One of the problems with two supply pins and net names. :-)
And boy, did this one take some finding.

We were able to prove the load/run feature of the board in slot one of a
dt001 board, and also as a stand alone unit, so it could be used as an
emulator for any 87x target board

Also proved rs-232 comms.

The new board design will go to the fab man this weekend.

Don McKenzie  mailto:don@dontronics.com http://www.dontronics.com

Don's Download Dungeon:   http://www.dontronics.com/download.html
Australian Electronics Ring http://www.dontronics.com/aering.html
Win $500USD Cash. Micro design contest:  http://www.simmstick.com