|
|
Pls reading the spec. of controller carefully! - }5 V9 N6 g! c% F( Y
Maybe you can get some useful info. from the spec. as following ：* R* U' K9 C5 I( w, f
1、FCE= Flash Chip Enable , they're output pins..... I! U4 Q/ ~* Q' j
2、FCE[0-4] means your controller can drive 5 pcs of flash max.5 u4 F9 @" A4 c% g3 ~$ N' c
3、FRB = Flash Read Busy, they're input pins...（output from Flash）
; V0 [5 s4 j( s" e: Q7 b2 ASo ,we can know:
+ [2 O+ f. W5 _) m& k5 {7 z1- if use only one Flash, the other FCEs can be NC. (Not Connected)
: p* x" p) c# Z. s6 Q7 n2- 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
( y B5 C- G/ Z- g' n1 C( E7 T- V1 @% Y# O
nnd，好痛苦英语，太郁闷了。。。。 |
评分
-
查看全部评分
|
/1 
发表于 2008-7-5 01:37
收藏
淘帖
支持！
反对！
楼主