Sillyfilly-espdumper

silly little thing to dump any memory and flash regions from esp chips
needs esp-idf-tools

just edit the file for your specifications

name start(hex) length(hex)
one per line, no underscores in the hex

example:

ROM0 0x40000000 0x4FFFF
Peripherals-1 0x600C0000 0xFFF