urbootPageWrite is not working on 1284p

[NilocEidlog]

I cannot get urbootPageWrite working on a 1284p.

ispgmwritepage076_ur() is returning false no mater what i do.

Bootloader is the standard urboot_{build.mcu}_pr_ee_ce.hex

lock_bits = 0x3F
hfuse = 0xDE
lfuse = 0x7F
efuse = 0xFF

This should allow SPM in bootloader or app , but calling page write on an unused area is crashing and ispgmwritepage076_ur() is always returning false.

[NilocEidlog]

Mighty Core 3.0.3 and Arduino 1.8.18

[stefanrueger]

See my take here

[stefanrueger]

And if setting the correct fuses does not work either, try downloading and burning the bootloader directly from urboot.hex.