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Altera_Forum
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17 years ago

Help:Cann't read or write EPCS in Nios II,why?

my system includes Flash,EPCS,etc,and has a EPCS controller.i want to read and write the EPCS in the nios.i tried to open the device using "alt_flash_open_dev()",but it's alway wrong--"can not open t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Is your flash (EPCS) empty? Try downloading your program to flash, then try to debug it again. I had the same problem. If the flash was empty, it would not open the EPCS device correctly.

Let me know if this was the case,

Mike