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So, how to disable watchdog or how to start reconfiguration from another address than 0x0 ?
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For the parameters of altremote_update MF available for Cyclone III, please refer to table 8 of the most recent
remote update ip core user guide. You should at least disable the Watchdog (provided it's not served in your application) and set the boot address (as you already do). The examples set also the osc_int and cd_early bit options, althoug it's probably not required. I didn't check, just performed the suggested actions.
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If it is not possible i can copy factory image 0x000000-0x100000 to second half of flash, then read bitstream from uart and download its to low half of flash ... and after this start reconfig.
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That's surely possible but not intended usage of remote system upgrade. If the action fails somehow, you end up with non-functional system and need to connect a JTAG programmer. The idea is to keep the factory image as safe fallback option.
Honored Contributor
