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Altera_Forum
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12 years ago

Writing/Reading into/from EPCS Flash Device

I am sorry for starting a new thread for this when there are some old threads of me and other in the same topics. I am not getting a response for those as yet. I am greatful to the forum as i have so...
Altera_Forum's avatar
Altera_Forum
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12 years ago

You do need to sort out a scheme to limit the number of erase cycles (to improve the lifetime of the flash).

One possibility is to use a type-length-data encoding to create a serial data stream in a flash block.

Terminate on a type of all 1s - allowing items to be appended, and 'erase' old items by changing the type to 0.

I did this with 32bit flash (paired devices) using a 24bit type and 8 bit length (of 32bit words).

You then only need to do an erase cycle when the sector is getting full.