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Martin57's avatar
Martin57
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5 years ago

MAX10 10M04 Flash Problems

We are using the 10M04SCE144C8G. After about 1 year in the field, we now have already 2 returns from our customer -- "FPGA not booting". When reading out the actual flash-content, we could see 1 sect...
JohnT_Altera's avatar
JohnT_Altera
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5 years ago

Hi,


The only think I can think of is that the erase has been accidentally performed from the On Chip Flash IP. I observed that the erased location is starting from Address 0x46000. Could you help to check if the CFM is having the write access or anything that can accidentally performed page erase?


Martin57's avatar
Martin57
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5 years ago

Hi John,

so, 0x46000 matches with a sector/page-boundary?

The CPU has all the time access to the IP Core Control Registers, so, for example during brown-out conditions, the occurence of a write_access is not absolutely impossible...

But, as far as I understood:

I would need at least 2 accesses to the command_register -- First to enable "sector_write", second the selected page -- very unlikely

How can I be sure, that this issue MUST BE due to an accidentally access?