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Altera_Forum
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20 years ago

Long Boot Time after update to 5.0

after updating to Quartus / NIOS II 5.0 my design needs about 7 seconds to boot (reboot) from EPCS. With an oscilloscope I've measured, that the FPGA configuration is done in 80 msec. After a sho...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hi Jesse,

Thanks for this great help. When changing extradelay to 0 all EPCS-Accesses now work as expected.

But it was not easy to change this value. Changing in 'em_epcs.pm ' didn't also change the value in its corresponding class.ptf and so didn't change it in the ptf file of the CPU. I couldn't get class.ptf updated when reopening SOPC builder and adding an epcs-component. So I've changed it in 'em_epcs.pm' and also in its 'class.ptf' to get it accepted.

In the corresponding custom board design is the asmi-component, also setting its extradelay. Changing this parameter also to zero, shortens Flash-Programmers time remarkable.

But these parameters also were set in version 4.2 / NIOS 1.1 and worked correctly (fast). Why?

Mike