Hello,
i'm trying do write some data into the EEPROM of the S9KEAZN32M4 with Segger Jlink. I can connect, flash a hex-File and read out register. For example the UUID with
mem8 40048010 8
i get 40048010 = 31 45 33 37 18 68 14 1E
So the connection should be ok.
I have to write 0x0B to 1000_0020 into the EEPROM. But when i write with
w1 10000020 0B
and read out with
mem8 10000020 8
i get
10000020 = FF FF FF FF FF FF FF FF.
Register 4002_0009 is set to 0x87, so EEPROM protection should be off.
Does anyone have an idea what's wrong on my side?
best regards
Thanks for your response. Segger will implement the writing of the EEPROM somewhere in the future.
Micha_S9
Hi,
Generally, the EEPROM can be written as a RAM is written, but the data in EEPROM can be kept after power off/on.
But the EEPROM for the S9KEAZN32M4 is a bit different. Pls refer to the EEPROM driver for KEA family.
You can download the EEPROM driver "EEPROM emulation driver for KEA128 and KEA8" from the link:
So I suppose that you can not write EEPROM with J-Link device and tools.
Hope it can help you
BR
XiangJun Rong