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Altera_Forum
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14 years ago

Connecting serial and parallel Flash

Hello everyone, Would this be possible: I want to connect the dedicated parallel 512 Mbit Flash for AP-Configuration. Additionally I would like to connect two 128 Mbit serial Flash m...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Christopher,

According to the Cyclone III Handbook, you can use AP configuration and have access to the flash in user mode. If some of the address lines are tri-stated during configuration, can you guarantee that you will be accessing the correct location in flash? Is this a limitation of the PFL when connecting the Cyclone III directly to a standard flash device rather than a configuration device? Would pull-downs be appropriate?

What is driving you to AP mode? Can you use AS with a config device and the parallel flash for storing pictures?

As Dr. Bogatin says, sometimes an okay answer now is better than a good answer later. Hope this is an okay answer.

Regards,

Scott