
--- Wolfgang Denk wd@denx.de 的正文:> Hello,
in message
20040101035021.6532.qmail@web15001.mail.bjs.yahoo.com
you wrote:
Is it _exactly_ the same design, with the same
types
of SDRAM chips?
Thanks you so much for your hints.I missed this
key
point.Yes,two chips of MT48LC16M16A2-75-B(1-1) on LITE_DW board with cs1 and two chips of MT48LC16M16A2-75-IT-C(2-2) on my board with cs1.I guess both are the same type.Am I right?
And the same CPU, same clock sources, etc. - all exactly the same?
I think so.The case of LITE_DW is XPC823EZT66B2 with 8MHz,mine is XPC823EZT75B2 with 8MHz.Our SDRAM part design base on LITE_DW. Also use same chips and hope we could go smoothly on development.In addition,I tested burst write with unreasonable configuration on LITE_DW and it could get through(I mean U-Boot booted normally on LITE_DW but not test further for possible results).So I focus my mind on six RAM WORD of UPMA BURST READ.
Best regards,
Sam Song
__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com