Hello I discovered that the chip "AT26DF321-SU" is recognized as "AT25DF321".
This is the output from a "AT26DF321-SU": Probing for Atmel AT25DF321, 4096 kB: probe_spi_rdid_generic: id1 0x1f, id2 0x4700 Found Atmel flash chip "AT25DF321" (4096 kB, SPI) on serprog. Chip status register is 0x1c. Chip status register: Sector Protection Register Lock (SRPL) is not set Chip status register: Bit 6 is not set Chip status register: Erase/Program Error (EPE) is not set Chip status register: WP# pin (WPP) is not asserted Chip status register: Software Protection Status (SWP): all sectors are protected Chip status register: Write Enable Latch (WEL) is not set Chip status register: Write In Progress (WIP/BUSY) is not set
It seems that both chips have the same ID's.
I have readed and written the "AT26DF321-SU" and it worked. If you need more informations or if i should test something -> Let me know. Greetings
Greetings