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jon_eng
Joined: 12 Feb 2008
Posts: 4
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| I want a help in my Graduate project |
 Posted: Sat Feb 23, 2008 12:45 pm |
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My project is to display a pdf files that are in mmc on a graphics LCD using pic18f452
I found a problem in how can i decompress flatedecode pdf file compression and if the ram in pic18 is enough to do that
Can i find a help here? |
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jma_1
Joined: 08 Feb 2005
Posts: 147
Location: Wisconsin
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| Posted: Sun Feb 24, 2008 12:11 pm |
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Howdy,
Please be more specific with your question(s). This is an outstanding forum for algorithm ideas, troubleshooting, and suggestions.
Things to possible consider:
pdf content (tables, graphics, forms, etc)
viewable area of lcd (scrolling?, etc)
external bus & memory device for decoding pdf
interface to lcd (ethernet, RS232, RS485, CAN, etc)
on-board memory of the lcd (store decoded pdf?)
My first suggestion would be to use an existing hardware platform. How about a cell phone, pda, or ipod? An older low end palm device is very inexpensive. Palm offers developement tools -> CodeWarrior for c++ if my memory is correct. Alternatively, the java micro edition and all it's variants should do the job as well. The QT green phone and it's related tool kit might be another good option. Embedded linux with Arm processors are popular and inexpensive if you couple them with GNU toolkits.
Please post more info.
Cheers,
JMA_1 |
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dyeatman
Joined: 06 Sep 2003
Posts: 1933
Location: Norman, OK
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| Posted: Sun Feb 24, 2008 2:54 pm |
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Slight modification to what you said:
| Quote: | This is an outstanding forum for algorithm ideas, troubleshooting,
and suggestions. |
This an outstanding forum for algorithm ideas, troubleshooting, and
suggestions related to the CCS C Compiler.
If he is not using the CCS C compiler then he should go to the
appropriate compiler forum for ideas on his Graduate project.
Jon-Eng, if you are using the CCS C compiler then this is
a good place to be. What version of CCS C Compiler are you using?
The version # will be in the format 3.xxx or 4.xxx
If you are using another compiler, which one are you using so we can
point you to the proper forum?
Dave |
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jon_eng
Joined: 12 Feb 2008
Posts: 4
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| Posted: Mon Feb 25, 2008 9:47 am |
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First i want to extract the text only from pdf file and displaying it on GLCD 256*256 with control buttons for moving up and down in the file
I don't know how memory are required to do that? |
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