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Altera_Forum
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13 years ago

NIOS II and Cyclone III Remote Update

Have spent several days now searching and reading and think I am nearly there... but not quite. I am using the NIOS II core with SOPC builder. I use Quartus II for the FPGA image. This is a projec...
Altera_Forum's avatar
Altera_Forum
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12 years ago

Hi Julien

I believe you are missing a point: the boot address in remote update core and the address of bootloader code are unrelated.

Remote update boot address ONLY refers to the position of FPGA configuration image. The Nios firmware position is included in this FPGA configuration itself, i.e. it is defined by the bootloader code you assigned to epcs device with the hex memory initialization file.

I don't know why you read 8 from the remote update address register; if FPGA reconfigures correctly probably it's only a trivial read error.

Anyway, according to what I said above, you should read here the address of the currently loaded fpga image, not that of Nios firmware.