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Pls reading the spec. of controller carefully! ! z$ h: `' C, ^, K9 M* j0 s
Maybe you can get some useful info. from the spec. as following ：
" o8 i4 f7 z3 t# ]" M1、FCE= Flash Chip Enable , they're output pins...." t+ _; u2 z/ z. w3 L" X
2、FCE[0-4] means your controller can drive 5 pcs of flash max.
* J; E$ O* o2 S$ C& \& B6 G+ w5 l3、FRB = Flash Read Busy, they're input pins...（output from Flash）0 p1 s6 l |& Z. g! i
So ,we can know:& Y, h; O+ B. |3 ~: G
1- if use only one Flash, the other FCEs can be NC. (Not Connected)# g0 d2 J6 U, F" B2 P2 ^/ [7 U
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
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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