Problem with SDRAM Memory

Aug 08, 2006 1 Replies

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


No. Are you sure you don't have RAS and CAS swapped?

Alan Nishioka snipped-for-privacy@nishioka.com

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