Here is his demonstration video: http://www.youtube.com/watch?v=HGsoAUJbZi4
I can confirm that his design works great also on the Dragon!
My Dragon now displays nice and sharp 80X24 lowercase letters, both under Basic and NitrOS9. (The photo doesn't do it justice)
I have patched Luis's OS9 drivers to support Dragon Data's GO51 escape codes.
With these patched drivers you can run Dragon Data OS9 applications like Stylograph, Dynacalc and RMS as well as Tandy OS9L1 applications on the 80X24 text screen.
Luis's CoCo Basic driver works on the Dragon without any modification. You can select PAL or NTSC display with a single poke.
The driver is a simple hook to basic that mirrors any text that is printed and typed on the Dragon to the CRT9128 screen.
The WordPak board has it's own 2k display memory, which opens many possibilities for dual screen applications.
For example, run a program on one screen, and monitor/disassemble the code to the second screen. How difficult would it be to patch DREAM to do that?
Luis has shared his project on OSH Park. You can order the blank PCBs directly from https://oshpark.com/shared_projects/iA8mteUe for about $19 a piece.
Here is the component list for this board:
10.92 MHz Crystal (11 MHz will do just fine)
0.22 uF Capacitor (224)
1K resistors (X2)
750 Ohm resistor
22 Ohm resistor
25 Ohm resistor
2.54 mm Pin headers (for jumpers)
The CRT9128 is not listed online, but it is available from several chinese sources. The cheapest I have found is from firstname.lastname@example.org
Once you have all the parts this project is not too hard to assemble. The board fits nicely in any CoCo rompak case.
The only catch is that OSH park makes you order the PCBs in batches of 3. So guys, get together and order them
You can download the schematics and CoCo drivers from Luis's site here: https://docs.google.com/viewer?a=v&pid= ... GNjOTEyZmM
Attached is my Dragon Drivewire NitrOS9 80 column boot disk with patched Dragon compatible CoWP PAL drivers. Drivewire is not required to use this board, but without drivewire you would need a y-cable to plug in both the WordPak and DragonDOS cartridges.
Ever wished you had a DragonPlus board? Well, the WordPak is just like a DragonPlus just without the additional 64K ramdisk
I would like to port the Compusense Edit+ for DragonPlus to work with the WordPak board. The only versions of Edit+ I was able to locate are for standard HiRes screen. Does anyone have a copy of Edit+ for DragonPlus?