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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Configuration layout of EPCS ?

Hi, this is my first post here ....:oops: I would like to understand the layout of the data stored in the EPCS configuration flash. I cannot find clear information in the documentation. The doc ...
beyondTime's avatar
beyondTime
Icon for New Contributor rankNew Contributor
4 years ago

Hello,

maybe it helps re-reading epcs eeprom content and analyzing for 'non code' areas or 'pattern filled' areas (on linux).

nios2-flash-programmer '--cable=USB-Blaster on <device description>' --device=<device number> --instance=<device instance to access> --debug -e --go --base=0x<POINTER_TO_EPCS_BASE> -R <epcs-data-backup.file>

objdump -h <epcs-data-backup.file>

partial example (not 'Advanced Boot Copier Example', but custom undefined working bootloader) getting from 'nios2-elf-objdump -s' :

000000 ffffffff ffffffff ffffffff ffffffff  ................
000010 566ffffe 000f1008 00566fff fe000f10  Vo.......Vo.....

or 'cat':

S1230000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF566FFFFE000F100800566FFFFE000F1022

best regards, beyondTime

( nios2eds 13.0sp1, Xenial 16.04 )