|Re: HookuP for HP IR Calculators --- Any interest?|
Message #7 Posted by Thomas Falk on 19 July 2000, 4:35 a.m.,
in response to message #6 by Steve
> If anyone can decode this C and come up with a text
> (or pseudo code) description of the byte stream
> (or process) you'll be of great assistance to those
> of us who are c-illiterate.
I would do it by myself, If I had the time. Looking around I found
and the file "irdata" in the same directory. The code used is actually ascii, the code used for the special characters may be found in
Sorry for just posting WWW-adresses, but the information is out there ;-)
If you have questions regarding understanding C, please feel free to mail me. The problem with the code in "hpread13.c" is that the decoding has to be done in real time, therefore a lot of switching with the interrupts of the PC is done. If you want to include this code into some Windows program, there may be timing problems. A portable solution may be to do the decoding in a microcontroller and then using the normal RS232 for the connection to the PC.
Sounds like a lot of work. What system do you have in mind?