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Altera_Forum's avatar
Altera_Forum
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17 years ago

No support for CFI algorithm 1793 on 16 bit flash

hi, When i program the sst39vf160 nor flash in NiosIDE , a problem happend:No CFI Table found at address .... i search the help doc and serch internet ,i find that the override file is neede...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

all reported values are 8 bit the upper 8 bit are always 00

check if you flash is in 8 bit mode

next check if you use 16bit mode that nios adr 0 is not connected as adr bit 0 it is always 0 in 16 bit accesses

nios a1 should go to flash a0, but some manufacures like spansion label adr bit 0 as a-1 if it is a 16 bit device with 8bit mode.

regards

michael