Read/Write S32k's Internal EEPROM

[vpsrprathap]

Hi Team,

I am working on S32K116 chip with Internal EEPROM. I am able to read/write the data into it. 

But i wanted to get the WARNING/ERROR status for the below scenarios from the internal EEPROM to MCU.

• No response from the EEPROM when reading
• Intermittent response from the EEPROM when reading
• Incorrect data from the EEPROM when reading
• No response from the EEPROM when writing
• Intermittent response from the EEPROM when writing
• Incorrect data written to the EEPROM

As i see in the NVM Manager there is nothing which written to MCU, but taking care of resetting using Debug warning things.

Please help me in how can i get the status from the Internal EEPROM on Read/Write failures.

Regards,

[dianabatrlova]

Hi Prathap,

I suggest looking at the document AN11983 Using the S32K1xx EEPROM Functionality

https://www.nxp.com/docs/en/application-note/AN11983.pdf 

About incorrect data written, since FlexRAM does not support ECC you can consider performing CRC check.

So, the multi-bit data errors in EEPROM backup (E-Flash) memory could be detected.

Also, you can check the discussion below:

CRC to Detect incorrect Data returned from the EEPROM emulation 

Checking of EEPROM Data 

https://community.nxp.com/message/1326193 

I hope it helps.

Best regards,

Diana