Searching \ for '[PIC] SD/MMC Interface to PIC18F using PBasicPro' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/microchip/languages.htm?key=basic
Search entire site for: 'SD/MMC Interface to PIC18F using PBasicPro'.

Exact match. Not showing close matches.
PICList Thread
'[PIC] SD/MMC Interface to PIC18F using PBasicPro'
2005\07\10@212546 by Nino Benci

flavicon
picon face
part 1 407 bytes content-type:text/plain; charset=ISO-8859-1; format=flowed (decoded 7bit)

I have an existing client with a data logger product who would like to
add SD/MMC storage to the unit. The project was originally written in
PBPro, some 300+ lines of code.

How feasable would it be to add an SD/MMC interface. The SD/MMC card
will be used to dump data to a PC at a later stage. The CPU is a
PIC18F452, a PC18F4520 may be substituted.

Thanks.

Nino.


part 2 373 bytes content-type:text/x-vcard; charset=utf-8; name=Nino.Benci.vcf
(decoded 7bit)

begin:vcard
fn:Antonio L. Benci
n:Benci;Antonio L.
org:Monash University;School of Physics
adr:;;;Monash University;VIC;3800;Australia
email;internet:spam_OUTelectronic.servicesTakeThisOuTspamspme.monash.edu.au
title:Professional Officer
tel;work:+613 9905 3649
tel;fax:+613 9905 3637
x-mozilla-html:FALSE
url:http://spme.monash.edu.au
version:2.1
end:vcard



part 3 35 bytes content-type:text/plain; charset="us-ascii"
(decoded 7bit)

2005\07\11@092935 by Mike Hord

picon face
> I have an existing client with a data logger product who would like to
> add SD/MMC storage to the unit. The project was originally written in
> PBPro, some 300+ lines of code.

Are you wanting to add it in PBP or assembly or something else?
PBP is extremely easy to use and pretty useful; you can also just
write inline assembly using the ASM...ENDASM directive.

> How feasable would it be to add an SD/MMC interface. The SD/MMC card
> will be used to dump data to a PC at a later stage. The CPU is a
> PIC18F452, a PC18F4520 may be substituted.

I'm actually thinking about a similar enhancement for a datalogger I'm
working on.  It's a little more complicated for mine, since it has to be
watertight which means we'd need to change the chassis to make the
card easy to remove.  What's stopping me (aside from that) is that to
be PC readable, you'd need to put the files on the card in FAT format.
Which, AIUI, implies that you need Microsoft's blessing, since they
are the patent holder on FAT.

IANAL, and if anyone (preferably a lawyer familiar with the situation)
can shed some light upon it, I'd appreciate it.

Mike H.

2005\07\11@094345 by Marcel van Lieshout

flavicon
face
AFAIK Microsoft only holds a patent on a detail of storing long filenames on
FAT. Not FAT itself.

Marcel

Mike Hord wrote:
{Quote hidden}

2005\07\11@213834 by Nino Benci

flavicon
picon face
part 1 1702 bytes content-type:text/plain; charset=ISO-8859-1; format=flowed (decoded 7bit)

I will need to write the data in FAT format so that the PC can easily
read the card.

Nino.

Marcel van Lieshout wrote:
{Quote hidden}


part 2 373 bytes content-type:text/x-vcard; charset=utf-8; name=Nino.Benci.vcf
(decoded 7bit)

begin:vcard
fn:Antonio L. Benci
n:Benci;Antonio L.
org:Monash University;School of Physics
adr:;;;Monash University;VIC;3800;Australia
email;internet:.....electronic.servicesKILLspamspam@spam@spme.monash.edu.au
title:Professional Officer
tel;work:+613 9905 3649
tel;fax:+613 9905 3637
x-mozilla-html:FALSE
url:http://spme.monash.edu.au
version:2.1
end:vcard



part 3 35 bytes content-type:text/plain; charset="us-ascii"
(decoded 7bit)

2005\07\12@045120 by Alan B. Pearce

face picon face
>I will need to write the data in FAT format so that the
>PC can easily read the card.

Get the definitive document of coding for the FAT format from Microsoft. It
provides code segments in "pseudo C" and provides lots of hints on how to
and what not to do in dealing with the format, and why some implementations
short cuts are not the correct way to deal with the format.

The copy I have is Rev 1.03, and the filename is fatgen103.pdf. what looks
like a more recent release of the same document as a Word file is available
here http://www.microsoft.com/whdc/system/platform/firmware/fatgen.mspx


More... (looser matching)
- Last day of these posts
- In 2005 , 2006 only
- Today
- New search...