You are right it does use more H/W resource. But for some applications, it is just a trade-off. Let's see what we can buy back with use of CF Card:
- It's paralell I/F and using roughly 1/8 clocks to read and write(compare to serial). In the other words, the device can be put in sleep mode for longer to save power,as well as emitting less electromagnetic noise. - More securer connection. To remove a CF card needs for pounds of force, not just grams. Imaging if there is damage to the device housing, which card is more likely to stay socketed? - Better ESD protection. Try to hold the CF card then MMC/SD card by yourself and guess which part of the card would catch ESD spark! - Less efforts to implement a file system. A balance has to be made between their pros and cons if you expect your product to operate reliably, efficaciously and safely. However, for just playing with, it may not be the case. I play with MMC too. Thanks, Hecheng Hu ----- Original Message ----- From: "Garst R. Reese" <[email protected]> To: [email protected] Subject: Re: [Mspgcc-users] Re: Compact Flash interface Date: Wed, 13 Apr 2005 14:11:43 -0500 > > Hecheng Hu wrote: > > Attached is the wiring diagram. Hope it helps. > > CF card is the best choice for recording cretical data because of > > its reliable connections. Hecheng Hu > > > Thanks, > > That said, it takes 17 pins. MMC/SD cards can go on the SPI bus. > Name your poison ;) > > Garst > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > Mspgcc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/mspgcc-users -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm
