Hello,
I met a problem to write and read data in an external flash memory Atmel AT25DF081.
Firstly, when I send the opcode 0x9F in order to read Manufacturer and device ID, I receive 1E-00-00-00 instead of 1F-44-01-00.
Secondly, when I try to write data in memory with the following command :
'AF-000A0000-005500' or
'AD-000A0000-005500' or
'02-000A00 -005500'
after to have done the Write Status Register to '00'
Unprotect Sector to the address 000A00
Write Enable
Block Erase to the address 000F00
we always read nothing with the command
'0B-000A0000-000000' or
'03-000A0000-000000'
We've tried with 4 memory and we always have the same behaviour.
Does someone already had this problem ? What could we do please ?
Thank you for any answer that can help us.
Regards
Fab