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Altera_Forum
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14 years ago

Target processor not responding.

Hello. I'm trying to use SDRAM controller with DE2-70 board (SDRAM chip is IS42S16160B): Bits: 16 CS: 1 Banks: 4 Row/Col:13/9 Timing settings from datasheet: http://i43.tinypic.com/2rd...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

I don't think the JTAG debug/uart can run that fast.

You might need to feed a slower clock into the debug module so that it is accesses through a clock crossing bridge.

There may also be other timing issues - running at 150MHz needs the timinga analysis be done correctly.