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Hans Wedemeyer
Joined: 15 Sep 2003
Posts: 226
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| SD memory card code |
 Posted: Fri Nov 12, 2004 7:44 pm |
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Some time ago I struggled through using a Secure Digital Memory card. During that time I was pointed to a library, and thought someone here may also need some advice.
I decided to buy the PRLLC library, had I purchased at the start my project it would have saved a lot time.
link to PRLLC
http://www.prllc.com/productcart/pc/viewPrd.asp?idcategory=17&idproduct=51
I am happy to report the library is good and easy to use, and I have been successful in using it for both FAT12 FAT16 and with Directory support.
Memory usage is very reasonable and depends somewhat on the options selected.
The most important item apart from the library itself is the good user manual and excellent technical support.
If you plan to use SD Memory cards in your project, and don�t want or have the time to develop your own code I recommend this library.
Hans Wedemeyer
PS I have no financial or any other interest in this product, I just a very happy customer. |
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Guest
Guest
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| Code size estimate for prllc library |
| Posted: Thu Dec 23, 2004 5:46 pm |
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| Assuming a PIC18, can you give us any sense of how much codespace this prllc library consumes? Thanks. |
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pat
Joined: 07 Sep 2003
Posts: 40
Location: Adelaide, Australia
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| Posted: Fri Dec 24, 2004 12:11 am |
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If you scroll to the end of the page that Hans linked to you will read
| Quote: | Processors Supported
The file system requires 10-30K of program space and approximately 1.5K of SRAM (depending on user configuration).
Some possible target processors may include:
PIC18F6720
PIC18F8720
PIC18F258*
PIC18F458*
PIC18F252*
PIC18F452*
* limited functionality
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Also says
| Quote: |
Complete CCS-C PCWH, project package with an example programs
� Designed specifically for CCS-C, and the Microchip PIC18.
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AK
Joined: 20 Apr 2004
Posts: 33
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| Posted: Tue Dec 28, 2004 10:36 am |
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Hans,
Do you know what PRLLC means by "Limited Functionality" for some of the
possible target processors?
Thanks,
Scott |
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Yashu
Joined: 08 Oct 2003
Posts: 26
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| Re: SD memory card code |
| Posted: Wed Jan 05, 2005 10:29 pm |
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| Hans Wedemeyer wrote: | Some time ago I struggled through using a Secure Digital Memory card. During that time I was pointed to a library, and thought someone here may also need some advice.
I decided to buy the PRLLC library, had I purchased at the start my project it would have saved a lot time.
link to PRLLC
http://www.prllc.com/productcart/pc/viewPrd.asp?idcategory=17&idproduct=51
I am happy to report the library is good and easy to use, and I have been successful in using it for both FAT12 FAT16 and with Directory support.
Memory usage is very reasonable and depends somewhat on the options selected.
The most important item apart from the library itself is the good user manual and excellent technical support.
If you plan to use SD Memory cards in your project, and don�t want or have the time to develop your own code I recommend this library.
Hans Wedemeyer
PS I have no financial or any other interest in this product, I just a very happy customer. |
Can the PRLLC code be compiled with a static overlay compiler (HiTech PICC-18) -or- does it require a stack based compiler with malloc() capability and re-entrant function support? |
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Guest
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| Re: SD memory card code |
| Posted: Wed Jan 05, 2005 11:59 pm |
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| Yashu wrote: | | Hans Wedemeyer wrote: | Some time ago I struggled through using a Secure Digital Memory card. During that time I was pointed to a library, and thought someone here may also need some advice.
I decided to buy the PRLLC library, had I purchased at the start my project it would have saved a lot time.
link to PRLLC
http://www.prllc.com/productcart/pc/viewPrd.asp?idcategory=17&idproduct=51
I am happy to report the library is good and easy to use, and I have been successful in using it for both FAT12 FAT16 and with Directory support.
Memory usage is very reasonable and depends somewhat on the options selected.
The most important item apart from the library itself is the good user manual and excellent technical support.
If you plan to use SD Memory cards in your project, and don�t want or have the time to develop your own code I recommend this library.
Hans Wedemeyer
PS I have no financial or any other interest in this product, I just a very happy customer. |
Can the PRLLC code be compiled with a static overlay compiler (HiTech PICC-18) -or- does it require a stack based compiler with malloc() capability and re-entrant function support? |
I did not use malloc() and do not see any reason why HiTech or other compiler can't be used. |
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