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Pls reading the spec. of controller carefully!
, E: Z. y2 ?* N7 t8 t0 p ^Maybe you can get some useful info. from the spec. as following ：
" O) |& J' y6 `8 ^6 l d$ m1、FCE= Flash Chip Enable , they're output pins....$ b# y3 T, E5 w- k
2、FCE[0-4] means your controller can drive 5 pcs of flash max.
, S- p9 O' k/ C4 @* I( p& F. b3、FRB = Flash Read Busy, they're input pins...（output from Flash）
; ~ `5 B% ?+ S8 |7 uSo ,we can know:
) T/ j% J; i+ m0 v/ f% k% ?+ G- P7 x3 i1- if use only one Flash, the other FCEs can be NC. (Not Connected)3 }, H" n& L( t1 f3 W
2- 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/down
7 {; @4 {& o* A- F# {# ]5 `6 Z7 L& p$ E$ ~5 g5 o: i
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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