Forum Discussion

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

help on SDRAM

Hello. I have a big problem with my board. My board has a EP1CQ240C6, one flash Intel E28F128, one SDRAM MT48LC4M32, one EPCS4 and a LAN91C111. The CPu clock is 50 MHz. I have made a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Hi Soin£¬ thank u for your answer http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif

Maybe the phase shit is the problem, but how can I generate a phase shift without PLL.

For example , the main clock is 50MHz, if I want to get the 3.5ns, the phase shift is approximate 65 degrees.

In the file "sdram.vhd", I didn&#39;t see the content about the phase shift.

sol *_*