Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

a problem about memtest

hi all I construct a system including a cpu ,a on_chip_ram(6K), a flash( 1M X 16bit), a tri_state_bridge! I use the project of memtest in nios 5.0! but when I use the run... function, the cons...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

While sometimes nios2-download failes due to the wrong SOPCB System is on the board (you get a message like "[...] System ID [...] does not match [...]").

In this case, your problem is that the read back of the memory failed during download.

See http://www.niosforum.com/forum/index.php?a...t=st&f=2&t=1937 (http://www.niosforum.com/forum/index.php?act=st&f=2&t=1937) for a similar discussion.

----

Actually after looking more closely, you appear to be downloading to a Flash? If so, you need to use a flash programmer as the run/debug cycles use nios2-download to download to RAMs.