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Altera_Forum
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12 years ago

Programming NIOS II code to EPCQ in Quartus 13.1

Hello I'm having trouble with NIOS II code executing from an EPCQ x4 flash chip (p/n Micron N25Q256A) after a power cycle. I've followed the following guideleins to boot from EPCQ or EPCS (fro...
Altera_Forum's avatar
Altera_Forum
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11 years ago

Hi Jens,

thanks for your answer.

As I understand this solution http://www.altera.com/support/kdb/solutions/rd11192013_118.html is using JIC flash programming only for enabling 4 bytes addressing mode. So is it possible to enable 4 bytes addressing mode by the call alt_epcs_flash_init() in my nios project? I want to get configuration data via uart and write configuration flash from Nios via epsc_controller. I can not using JIC programming every time I want to update configuration.

And one more question. I have some misunderstanding of nios boot in case of reset vector points on epcs controller start address. In this case some boot code must placed in flash start address, but SOF file(converted to *.flash) with configuration data placed in here. So how it is work?

Best Regards,

Sergey Burenkov