NOR flash can't go 0xffffffff unless it is erased. A glance at the W25Q16JVUXIQ datasheet says that min erase unit is a 4KB sector. One can easily check whether the flash contents is still the same. I think it's likely to be unchanged.
The RP2350 datasheet in the XIP section does mention writes. I don't think it will do anything to the flash but I guess the cache line is now dirty, then what? Could it be some wonky logic in the program that causes a 16 byte write to flash memory area? Just speculating. I'm interested in what the experts here has to say about it.
The RP2350 datasheet in the XIP section does mention writes. I don't think it will do anything to the flash but I guess the cache line is now dirty, then what? Could it be some wonky logic in the program that causes a 16 byte write to flash memory area? Just speculating. I'm interested in what the experts here has to say about it.
Statistics: Posted by katak255 — Sat Jan 10, 2026 2:58 pm