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Pls reading the spec. of controller carefully! $ |- h+ |* q% g/ f$ g
Maybe you can get some useful info. from the spec. as following ：
" a) q+ e1 G# E7 j X1、FCE= Flash Chip Enable , they're output pins....& S5 V: E# b. D# Y
2、FCE[0-4] means your controller can drive 5 pcs of flash max.
1 X3 T; ^$ z: @9 H3、FRB = Flash Read Busy, they're input pins...（output from Flash）2 Z9 a2 h3 q1 ^5 k, G$ r! l% m2 N
So ,we can know:$ a" v: Z9 H9 h! e
1- if use only one Flash, the other FCEs can be NC. (Not Connected)) s) ^1 b1 E( e9 ]1 G4 j
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
1 O1 g! }& { F4 U0 ~6 t+ c8 Y3 _4 A$ L+ W
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