On Jul 16, 2008, at 2:23 PM, threewheeler7 wrote:

> so i address the memory of the flash memory with my PIC, and send the
> resulting bytes to an a/d? how would i get the uncompressed audio  
> converted
> and on the flash?

Did you look at the project/url I provided?  Here it is again:

(smaller!) http://tinyurl.com/6yn45b

In that case, you use a PC or similar with USB flash card reader/ 
writer to put appropriately formatted .WAV files on the SD card  
(within a FAT filesystem), and then you the software essentially has  
a play("filename.WAV"); sort of API.

> and when you are talking about using consumer flash cards,
> isn't that a whole other ballpark?

Depends on the flash cards.  Most SD and MMC cards can communicate  
using SPI, making them not-much-harder to talk to than any other  
eeprom chip.  Having a filesystem makes things more complicated, but  
it's a "solved problem."  Or you can build a separate device for  
writing the flash in "raw" mode; more hardware, less SW...

BillW

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