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Altera_Forum
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17 years ago

non-application pin Model for Cyclone II

Is there something like a physical model, describing the behaviuor of such pins like Status, nConfig, MSEL and these ? I am setting up a system to load and automatically reload FPGAs with new i...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Hello,

You can find information about Power UP, Reset, Configuration and initialization in a PDF named "configuring altera fpgas" .

About timing , you may look at device handbook (chapter "configuring ...."). Timing depends on device, options (fast programming, ...) and environment (power state, CRC checking...)

Other way,

I am testing an home made "auto reconfiguration" in cyclone II by wiring a i/o pin to nconfig pin of the fpga itself trough a 1kohm resistor. Is there constraints with AS Programmation headers (pin 5) ? or other bad thing i have not seen ?

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