DA14580 booting though another processor

H Dialogi,

I am using DA14580 as a secondary processor connected to another processor. I have few questions about it. We have gone through the manual and all the PINs are connected as UART download mode for the dialog chip.

On Power on, Dialog chip will be in UART Download mode. Our main processor should download code into Dialog chip and boot it.

I need help on this.

Q1. Is there any reference SW for this? I am looking into Secondary Bootloader source code, but failed to boot it.

Q2. Is the code size restricted to 42K for UART downloading?

Please let me know.

Thanks in advance
Sreenath