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19 天
历史上的今天
首先任何FLASH的写操作都是非常耗时的,体现在擦除FLASH上,且写操作不能太频繁,故而用DMA方式实现写操作程序逻辑会非常复杂,程序逻辑在各种中断处理中容易乱,与之相反采用DMA读大批量数据时及具有优势. 比如36MHzSPI时种,采用轮询方式读一页数据需要花费250us时间 ...
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今日热点
Helene death toll rises
Actor John Ashton dies
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Crew-9 astronauts at ISS
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'SNL' launches 50th season
Newsom vetoes AI safety bill
‘Wild Robot' tops box office
'Days of Our Lives' star dies
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NC small plane crash
Three PFLP leaders killed
Condemns Israeli strikes
US wins Presidents Cup
37 militants killed in Syria
Defensive Player of the Year
$567M Taiwan defense aid
Oil prices climb
Ukrainian drones shot down
Steward CEO to step down
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Temporary outage fixed
Chief adviser subpoenaed
Faces fine to end Brazil ban
Harris' Las Vegas rally
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