mcuboot+display driver with lvgl(build from zephyr with single-threaded)+app

[ilyhcg]

Hi ，

In the MCUboot multi-threaded program, function pointers are used to treat the display firmware (single-threaded, CONFIG_MULTITHREADING=n) as a function. This way, I can update the display without needing to update MCUboot itself. Is this approach feasible?

I have made numerous attempts, I have split the RAM hardware resources in half, allocating one part to MCUboot and the other to the display firmware.，but the outcomes are either that the display firmware takes over all control, or the system crashes.

Zephyr 4.2
Rp2350 platform