Lpc2000

Hi Gus

Does your file system write a packet at a time (512 bytes) or do you
write along the way for instance 

For ( x = 0 ; x < 1024 ; x++ )
fputchar('U');

You claim 70KB/s on your system but how is this measured according to
the above example ... will the file system save a packet when x = 512 or
save along the way (x=1,x=2,x=3..) if you write a packet at a time I
would say its difficult to determine the actual speed as you will have a
"stall" time when writing the packet and a buffer overflow could occur
while writing the packet if you catch my draft ? 

Regards
Lasse Madsen




-----Original Message-----
From: Gus [mailto:gus_is_working@...] 
Sent: 27. september 2004 18:35
To: lpc2000@yahoogroups.com
Subject: [lpc2000] Re: FAT file system

That is funny! I never posted the website :-)
www.ghielectronics.com

By the way ALFAT is doing 70KB/S now! We also added 256 FIFO to UART 
and SPI


--- In lpc2000@yahoogroups.com, "Pete" <peterbrown_abroad@y...> 
wrote:
> Hi Gus
> Actually having fat32 is OK, its just that for our particular 
> embedded application we will NEVER exceed something like 100Mbyte. 
> If my understanding is correct then fat16 can handle this ok.
> We also do not need to support long filenames as this is an 
embedded 
> product.
> The only time we need to interface to the PC is when we upload the 
> data onto the flash card at production, or during inservice 
product 
> upgrades.
> 
> If you could point me to a website or similar for info on the 
system 
> you have then that would be great.
> 
> We will be starting to lay out PCB out shortly for the main 
> controller and as such we may not need to get the board you have - 
> so is just the source code available to purchase for fat file 
system 
> and interface to a compact flash card?
> 
> thanks for your help,
> rgds
> pete
> 
> 
> --- In lpc2000@yahoogroups.com, "Gus" <gus_is_working@y...> wrote:
> > Peter,
> > 
> > Yes, board and chips are available. Why you don't want FAT32? 
did 
> > you think that at some point in the future you will need a 
larger 
> > media that is FAT32?
> > 
> > Thanks,
> > 
> > Gus
> > --- In lpc2000@yahoogroups.com, "bty639886" <peter.brown@b...> 
> wrote:
> > > Gus,
> > > Is your dev board available?
> > > Is the ALFAT software available?
> > > 
> > > I require compact flash read/write only (no need for fat32)
> > > 
> > > Please advise,
> > > Kind Regards,
> > > 
> > > Peter
> > > 
> > > --- In lpc2000@yahoogroups.com, "Gus" <gus_is_working@y...> 
> wrote:
> > > > I have posted about this before but now I am finally done 
with 
> > > > ALFAT. I used LPC2114 chip and programmed it with full FAT 
> file 
> > > > system where you can send SPI or UART(serial) commands to it 
> and 
> > > it 
> > > > will save FAT files to many kinds of medias SD, MMC, CF and 
> hard 
> > > > disks!
> > > > 
> > > > The development board can be used for other purposes as it 
has 
> > > > LPC2114, RS232 level converter, MMC/SD/CF connectors, and 
IDE 
> > > header 
> > > > for your hard disk!
> > > > 
> > > > Thanks for your time,
> > > > 
> > > > Gus Issa
> > > > gissa@g...




 
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