Cyclone V SoC Preloader will not run bare metal app

Cris72,

I think your observation about the onchip ram is correct. In my application, I only have symbols defined in the onchip ram at 0xffff0000

and don't allocate any data or code in that space. That allocation is done in the linker script. I guess that's the reason why the .axf file

and resulting .bin file don't contain data/code that needs to be initialized in that space.

You can check for the condition you mention in the .axf file, with the following command:

arm-altera-eabi-objdump -x <name of axf file>

In my case, I get these sizes for the various sections in my .axf file. Note that the size is zero for the oc_ram sections.

Sections:

Idx Name size VMA LMA File off Algn

0 .text 0001df74 00100040 00100040 00010040 2**6

CONTENTS, ALLOC, LOAD, READONLY, CODE

1 .eh_frame 00000004 0011dfb4 0011dfb4 0002dfb4 2**2

CONTENTS, ALLOC, LOAD, READONLY, DATA

2 .ARM.exidx 00000008 0011dfb8 0011dfb8 0002dfb8 2**2

CONTENTS, ALLOC, LOAD, READONLY, DATA

3 .rodata 00000f08 0011dfc0 0011dfc0 0002dfc0 2**3

CONTENTS, ALLOC, LOAD, CODE

4 .cs3.boot_rom 00000000 fffd0000 fffd0000 0002f9c0 2**3

CONTENTS

5 .cs3.boot_rom.bss 00000000 fffd0000 fffd0000 0002f9c0 2**0

CONTENTS

6 .cs3.oc_ram 00000000 ffff0000 ffff0000 0002f9c0 2**3

CONTENTS

7 .cs3.oc_ram.bss 00000000 ffff0000 ffff0000 0002f9c0 2**0

CONTENTS

....