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Altera_Forum
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14 years ago

AS controller 'override' from NIOS

Hi, We have gotten into a bit of a mess here and need some Altera Guru help!!! We have inadvertently programmed a large number of boards, many of which are in the field, with an incorrect confi...
Altera_Forum's avatar
Altera_Forum
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14 years ago

the problem arises when we then try to update the flash via the nios (using epcs flash controller) it does not work because the nios cannot open the device.

We have a board that uses this same type of configuration and have not seen this type of issue. If the Nios executable is "running" you are past the AS stage. It's quite possible that the PS load of the 2nd FPGA(performed by the FW) is never completing and looping infinitely on trying to load the 2nd FPGA.

The PS load could of course have the EPCS device open, preventing other accesses.