RAM Initialization

[SreejithN]

Hi,

I am using s32k146 in my current project. In that i have a requirement to initialize the RAM except a particular section on every reset other than Power On Reset. (On Power On Reset all data should be initialized) . Is there any wat to do this?

Thanks

[SreejithN]

Hi @VaneB 

Thanks for your information. 

By using SRAM retention, it is possible to save either the entire SRAM_U or SRAM_L data. However, is there any other option to retain only a particular section on reset? For example, can we retain only the data between '0x2000EC00 to 0x2000EFFF' on SRAM_U while initializing all other data?

[VaneB · Accepted solution]

Hi @SreejithN 

The following link is for an example of SRAM retention, which may help clarify how this works on the S32K1.

• Example S32K144 RAM Retention S32DS.R1

[VaneB]

Hi @SreejithN 

Take a look at section 31.3.4 (SRAM retention: power modes and resets) of the S32K1xx Series Reference Manual, Rev. 13.

B.R.

VaneB