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???
11/05/05 23:32
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#103328 - Memory cards
Responding to: ???'s previous message
Jeff Corr said:
Did anyone ever have any luck using memory cards from digital camera? (compactflash and smart media, specifically) I was reading on them, and they too have a 512byte sequence that must be read all at once. As with a digital voice recorder, this wouldn't be an issue.


The Secure Digital cards are used in cameras, at least some cameras. Yes, their sector size is 512-bytes but you send a read command via SPI and then you clock the 512 bytes out at your leisure--it's not like the SD card is going to spit the data out faster than you can handle it. The host (the microcontroller) drives the SPI clock, not the SD card.

Regards,
Craig Steiner


List of 10 messages in thread
TopicAuthorDate
interfacing serial eeprom or other?            01/01/70 00:00      
   MMC            01/01/70 00:00      
   Atmel serial flash            01/01/70 00:00      
      Atmel DataFlash            01/01/70 00:00      
   SD            01/01/70 00:00      
   DataFlash            01/01/70 00:00      
   SST?            01/01/70 00:00      
      dataflash            01/01/70 00:00      
         Memory cards            01/01/70 00:00      
         Atmel data flash            01/01/70 00:00      

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