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Altera_Forum's avatar
Altera_Forum
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14 years ago

How long should it take to write to flash?

I am just wondering how long it should take to write to flash, the following line of code takes about 8 seconds to update a 128k block of CFI flash memory. Is this normal? alt_write_flash ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

What flash device are you using?

Usually CFI flash memories have a byte programming time of few us.

But if I remember correctly alt_write_flash includes the erase sector cycles, even if memory is already blank. Each sector erase may require tens of ms, so you must consider it.