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MPC5744P Non-Volatile RAM

Question asked by juliusjai on Jan 28, 2019
Latest reply on Feb 4, 2019 by juliusjai

Hi,

I would like to implement a non-volatile RAM for MPC5744 MCU project. I need to retain some data when MCU goes to reset.

 

But according to MCU application note - MPC5744P_Software_Start_Up_and_Optimization.pdf:

3.7 SRAM initialization

The internal SRAMs feature Error Correcting Code (ECC). Because these ECC bits can contain random data after the device is turned on, all SRAM locations must be initialized before being read by application code.

 

Does anybody has an idea on how to implement non-volatile RAM?  Or how I can retain some values in RAM when reset occurred?

 

P.S. I don't want to store these data in data flash.

 

Thanks in advance.

Julius

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