Forum Discussion
Altera_Forum
Honored Contributor
15 years agoOh I didn't see the memory size... The span for a 2Mb memory is 0-0x1fffff, so you definitely have a problem with your address lines if the memory test software finds a problem at 0x80000. Be especially careful with the lew bits of the address bus. A0 from the chip point of view is in fact A2 as seen by SOPC builder on a tristate bus.