HP15CLE old can of worms

[Katie Wasserman]

(07-07-2014 04:00 PM)Shawn Gibson Wrote:  Having just read the post comparing the HP15CLE and HP15C, I wonder speculatively about the possibility getting a fixed HP15CLE?

Now for what I do not know:
1) Is the schematic available?

It's just the ARM (same as the 30b) and the LCD, a slimmed down version of the 30b PCB for which the schematic is available in the SDK.

Quote:2) Would remapping the LCD be worth the trouble?

Mapping out the LCD and keyboard is pretty easy to do.

Quote:3) Is there enough interest in the community to take on the project?

I have no idea.

Quote:4) Is the original source code available for the 15C?

The project being, create a replacement flash image for the HP15CLE ( HP12...) that
is based on the WP34 work that could correct the issues that have been identified
in the HP15CLE so far.

If the source code were available we (I for one) would have fixed the 15CLE bugs long ago. Another option would be a WP34-like project to re-create all the functionality of the 15C. While I'm sure some of the WP34 code could be re-used it would still be a big project. A third option is to use an emulator running on the ARM and the original 15C binary image, like Swiss Micros did for their line of mini-voyagers. The 15C binary image is floating around out there but I think that there are copywrite issues with that. (Maybe not since Swiss Micros seems to get away with it.)

Quote:Wishful thinking?

Probably