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Altera_Forum
Honored Contributor
19 years agoCyclone III AS configuration bizarreness
I am using a cyclone III (EP3C25F324C8N) with an EPCS16 configuration device. I am programming the configuration device through the FPGA with the serial flash loader. The problem is that the Cyc...
Altera_Forum
Honored Contributor
18 years agoCould this be a problem just in Quartus 7.1. We are having a similar problem and we did find that for a small design just RTL (Cyclone III C25, Industrial samples)
Quartus 8.0 works with and without the capacitance that people is talking about with and without compress programming file Quartus 7.1 SP1 seems to work better with uncompress data streams (no idea why) and works with compress data stream when using the capacitance. With a design which includes an embedded Nios running form embedded Memories it works in 8.0 and it doesn´t in 7.1. That´s it mean that the .sof is different from the versions and it is just a matter of luck? Otherwise it something special when using Quartus 8.0 about loading from the EPCS? Could it be something depending on the streaming of the configuration file?