> I have some problem with SDRAM memory interface. I am using a SHARP LH79525
> ARM controller.
>
> When I give a precharge command I see with a logical analyzer a wrong comand
>
> WE=L
> CS=L
> RAS=H
> CAS=L
> A10=H
>
> which seems to be a write command
>
> There are some configuration that can take a write command as precharge ?
No. Are you sure you don't have RAS and CAS swapped?
Alan Nishioka
alan@nishioka.com
Reply by Giuseppe Monteleone●August 8, 20062006-08-08
Hi All
I have some problem with SDRAM memory interface. I'am using a SHARP LH79525
ARM controller.
when i give a precharge command i see with a logical analyzer a wrong comand
WE=L
CS=L
RAS=H
CAS=L
A10=H
whitch seem to be a write command
There are some configuration that can take a write command as precharge ?
Thanks
Ing Giuseppe Monteleone