Default SRAM state on S32K1xx on Power On

[siva280386]

What is the default state of the SRAM memory on Power-on-Reset. During our testing with IAR debugger, we see that the whole RAM is initialized to all 1's. Our startup code is clearing the whole used RAM to make it 0. but we wanted to be sure the RAM default initialized during system boot up on a power on reset is all 1's in S32K1xx ? we see usually all the micro's clears the RAM on their system boot up. so, we wanted to be sure or know the reason behind all 1's. We did not find any reference to this in the specification or data sheet. please let us know if any documentation is supported on this.

[davidtosenovjan · Accepted solution]

Hi, see screenshot from AN12522 below:

Just noting, it can be initialized by debugger (or its script). Unfortunately I don't use IAR debugger but having RAM content initiated in the device's startup is necessary.