|
|
Pls reading the spec. of controller carefully! ! q H% E5 D9 g6 V2 U! e( ~0 M/ Y7 m
Maybe you can get some useful info. from the spec. as following ：! w+ r+ s! d/ o
1、FCE= Flash Chip Enable , they're output pins....+ s1 o- m! y0 U
2、FCE[0-4] means your controller can drive 5 pcs of flash max.
; O U; k7 S( u$ | ?! i2 y& h3、FRB = Flash Read Busy, they're input pins...（output from Flash）. m( W3 G+ K4 \! _+ {
So ,we can know:
# j- N% ]4 Y* @0 u8 B5 s9 Z1- if use only one Flash, the other FCEs can be NC. (Not Connected)& _: A4 x) _8 ~/ y) v% x1 e
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
. e% y5 z2 d2 i0 h
' o- l$ U. P& ynnd，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
QQ好友和群
QQ空间
腾讯微博
腾讯朋友
微信
收藏
支持！
反对！
楼主
