tweak softdevice hex file

RE: tweak softdevice hex file

marklander — Mon, 02 Dec 2024 13:08:46 GMT

I discovered that there was an issue on my side, softdevice boots fine also from 0x1b800...

Thanks for support!

RE: tweak softdevice hex file

Vidar Berg — Mon, 02 Dec 2024 12:15:59 GMT

Hello,

It is possible to change the application start address in the softdevice binary as you have discovered, and while it will likely work just fine, we cannot guarantee it won't have side effects since it is not something we test for. The start address must be aligned to a 4096 byte page boundary. Otherwise, you will encounter problems when updating the application image through DFU.

[quote user="marklander"]Maybe is there any sanity check inside SD code that blocks not aligned address in some way?[/quote]

I have not confirmed this, but it seems like the most likely explanation.

RE: tweak softdevice hex file

marklander — Sun, 01 Dec 2024 09:22:10 GMT

Adding one note:

I tried moving to 0x1D000 the tweaked address and seems working!

Maybe is there any sanity check inside SD code that blocks not aligned address in some way?