Ram Size Determination by QNX

Hi, All.
I have developed my own IPL for MPC8572DS Board.
There is ramsize in syspage to determine a physical memory size.
I got some queries regarding this:

  1. Who fills the ramsize parameter in the syspage?
  2. If the ramsize parameter is not filled in the syspage, how does the QNX React to the ramsize parameter.
  3. How Does QNX determine the DDR Ram Size.
  4. What is the command in QNX to determine the available RAM Size installed in system?

Can u explain wrt open QNX.

Regards,
Vignesh Kumar B

  1. What is the command in QNX to determine the available RAM Size installed in system?

pidin info

1 Startup code
2 Creation of black hole I assume
3 It’s BSP dependent. On x86 I beleive it ask the BIOS.

I hope you aren’t working on the LHC Mario :slight_smile:))