KEA64 Internal EEPROM

[pmathew96]

How to read data from the internal EEPROM of S9KEA controller?I didn't find much information in the datasheet regarding this.

[star333]

Hi 

How do you find documentation about KEA64 EEPROM?

I am searching a long time for a example or documentation of KEA64 EEPROm

[pmathew96]

Hi,I tried to write and read data from eeprom(0x10000000 to 0x100000FF).But data writing is not happening properly.please have a look on the attached screenshot.Here i had tried to write 0x23 to 10000040

after write commandbefore data writting

[jingpan]

Hi @pmathew96 ,

Please refer to this link. People pasted their code. You can refer to it.

https://community.nxp.com/t5/Kinetis-Microcontrollers/KEA-64-suspends-during-internal-EEPROM-erasing...

Please Note that The EEPROM supports only byte access.

Regards,

Jing

[jingpan]

Hi @pmathew96 ,

Read EEPROM data from 0x10000000 to 0x100000FF. You can read them as a normal flash. For example, data=(*(unsigned char*)0x10000000).

Regards,

Jing

[pmathew96]

Hi,@jingpan 

I found only option for read once(for reading the flash segment which can be programmed once).i didn't find the command for reading it,also didn't find the same on evk sample code

[jingpan]

Hi @pmathew96 ,

yes, it seems there isn't such example.

Regards,

jing