ATMEL全套MP3设计资料

源代码在线查看: changes.txt

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关键词: ATMEL MP3 设计资料
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相关代码

				CHANGES - snd1-demof
				
				               
				ATMEL - 2002
				
				
				CHANGES
				-------
				Version 1.0.0, December 21, 2001
				- Creation
				
				Version 1.0.2, January 24, 2002
				- Change Long File Name management in FAT
				- Fix bug when accessing files on card size > 32 Mb
				- Fix bug when mass storage read is performed just after a write
				- On-board DataFlash bug fix in player MP3 read
				
				Version 1.2.0, March 28, 2002
				- Support for generic USB mass storage drivers under windows 2K, ME, XP(TM)
				- Allow format of DataFlash and MMC through the tool operating mode
				- Full support for voice operating mode
				- Full support of AT89C51SND1B in case of MP3 errors
				
				Version 1.2.4, April 26, 2002
				- Mass storage now supports win98(TM) and Linux(TM).
				- Mass storage library implementation eases new memory support.
				- MMC plug/unplug now supported during mass storage.
				- MMC automatically selected (if present) when entering mass storage.
				- Win98(TM) driver available.
				
				Version 1.2.5, June 7, 2002
				NEW FEATURES / ENHANCEMENT
				- Mass storage now supports MAC OS9.
				- Mass storage now supports multidrive on Win98(TM), WinXP(TM) and WinME(TM)
				  Win2K(TM), MAC OS9 and Linus do not support multidrive.
				- Mass storage library now reports 2 busy events:
				  - sbc_wr_busy set when write command received
				  - sbc_rd_busy set when read command received
				  These events are cleared by the consumming task.
				- USB plug-in detection enhanced to avoid spurious detection.
				BUG FIX
				- MMC is still working when USB unplug is done after a file write.
				- No more "crack" when playing back voice file.
							

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