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比如90ns的FLASH器件,读写时钟周期是否要留余量?留多大合适?
请问您用的是哪款DSP器件? 在器件手册里有EMIF的时序图, EMIF寄存器里有setup,access time, hold time可以根据外接memory的时序进行调整.
C6713B。时序图看到了,我的意思是工程应用的话,肯定要留些时间余量保证可靠性,这个余量留多少合适?或许问FLASH芯片公司更合适~
我的理解是EMIF的读写时序和flash的读写时序匹配就可以了.