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Pls reading the spec. of controller carefully!
; M; B" J" \. AMaybe you can get some useful info. from the spec. as following ：
9 a6 @1 g# N3 k+ k1、FCE= Flash Chip Enable , they're output pins....
7 N# [2 F" d( F- t( l8 D5 r6 J2、FCE[0-4] means your controller can drive 5 pcs of flash max.; e+ X" m! g! t1 G( L" D
3、FRB = Flash Read Busy, they're input pins...（output from Flash）
! W- w$ B$ f; f. i- n7 {So ,we can know:
' c! C+ C( M. {% ^9 u# b. ]) n1- if use only one Flash, the other FCEs can be NC. (Not Connected)
9 K B: F- V) A% b9 U, d& ]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' l; e0 J- T: i+ f6 x# j0 y" r
/ J/ p R( w' X9 e7 b+ m( Hnnd，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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