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Altera_Forum
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14 years ago

Configuring Altera FPGAs

I am currently working on a project using a cyclone ii device and I am not sure I understood the Configuration Cycle Waveform as described in ALTERAs config_handbook.pdf correctly : (Figure 1-1) ...
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Altera_Forum
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14 years ago

Hi,

I think all registers must be initialized to either "0" or "1" before the device enters user mode. In case there is no initialization within the code (and the option "Power-Up don't care" in "More analysis&synthesis settings" is "On"), the QuartusII compiler can decide to initialize to either "1" or "0" to optimize device usage...

(Similar to initialization in Code there is an "Power-Up Level" option in the assignment editor...)

Regards