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Pls reading the spec. of controller carefully! , P) }: z, z/ W4 V2 W' G
Maybe you can get some useful info. from the spec. as following ：, F9 W0 X* q& N; Y- k2 J" z
1、FCE= Flash Chip Enable , they're output pins....
( P9 y. c$ W4 p$ {2 p2、FCE[0-4] means your controller can drive 5 pcs of flash max.6 J2 d3 @# `) F9 f( E& z6 O# a# |/ n
3、FRB = Flash Read Busy, they're input pins...（output from Flash）! p# {+ D, Q. X1 F$ V! T
So ,we can know:
! j+ r1 F( @ `' i! e5 ]9 J1- if use only one Flash, the other FCEs can be NC. (Not Connected)
4 u& ?, @; |. A2- maybe you can't left the FRB1 float, if you're not sure,you can phone the FAE of the controller or put some NC.RES to pull-up/down0 [; Y: e3 c: D$ M g" c/ Y
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nnd，好痛苦英语，太郁闷了。。。。 |
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发表于 2008-7-5 01:37
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