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Pls reading the spec. of controller carefully! 2 `1 ]& ?/ F" v$ H. \% Y3 z' c0 K
Maybe you can get some useful info. from the spec. as following ：
# {. h% @! u$ c: @7 r! | u, [1、FCE= Flash Chip Enable , they're output pins...., J4 f; R: P% k1 H4 c
2、FCE[0-4] means your controller can drive 5 pcs of flash max.
% h; Q/ ~ |. {; K( B% A3、FRB = Flash Read Busy, they're input pins...（output from Flash）
9 n8 {" Y4 Z( [9 X) ]- ~So ,we can know:
2 ]6 q+ D- N/ p k. G) }# m1- if use only one Flash, the other FCEs can be NC. (Not Connected)
+ f* ^7 g4 O( J7 S/ 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/down5 `' B# y: T6 Y" [
$ K% N$ h3 }8 d" A, F2 U
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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淘帖
支持！
反对！
楼主