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Altera_Forum's avatar
Altera_Forum
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19 years ago

Speed problem with EPCS

Hello all together,

i have an problem with the EPCS.

After I load my Software with the Flashprogrammer in the EPCS and restart my Device, it takes around 25s till my programm starts.

I measured the CONFIG_DONE and the DCKL-Lines at EPCS.

The result is, that the Cyclone2-Device loads the FPGA-Design-File correct (with correct Speed), and then transfer the Software with very low Speed from EPCS to SDRAM (200 KB in 20s).

The Hardware-Platform is fully tested (an other Design functions without this problem).

The Flashprogrammer-design works too (the same design works with another project).

Extra_delay option in EPCS-Source-class is set to "0".

Here my IDE Infos:

Quartus 5.0 SP1

NIOS2 5.0 SP1

I hope anyone can help me!! http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

greetz MIBU

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor

    DO NOT use v5.0. You should use v5.1 sp1, or the latest v6.0 . Altera had improved the speed.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor

    there was a fix posted here for the epcs boot loader code i guess ....