Support for >4MB flash

[achook]

Not really issue, but enhancement.
ESP8266 can support up to 128Mb (16MB) flash memory size, but in Arduino IDE, you can use 4MB max. Some people get it working:
http://www.instructables.com/id/ESP-03-Upgrade-Flash-Memory-to-128-M-Bit/?ALLSTEPS

I also found this in boards.txt

# disabled because espressif's bootloader refuses to write above 4M
# generic.menu.FlashSize.8M=8M (7M SPIFFS)
# generic.menu.FlashSize.8M.build.flash_size=1M
# generic.menu.FlashSize.8M.build.flash_ld=eagle.flash.8m.ld
# generic.menu.FlashSize.8M.build.spiffs_start=0x100000
# generic.menu.FlashSize.8M.build.spiffs_end=0x800000
# generic.menu.FlashSize.8M.build.spiffs_blocksize=8192
# generic.menu.FlashSize.16M=16M (15M SPIFFS)
# generic.menu.FlashSize.16M.build.flash_size=1M
# generic.menu.FlashSize.16M.build.flash_ld=eagle.flash.16m.ld
# generic.menu.FlashSize.16M.build.spiffs_start=0x100000
# generic.menu.FlashSize.16M.build.spiffs_end=0x1000000
# generic.menu.FlashSize.16M.build.spiffs_blocksize=8192

Are you planning to get it working or is it just impossible?

[miky2k]

Seems that bootloader(and esptools) is limited to 4Mb, but i suppose if you format spiffs in place(or load it via OTA) it can handle 15Mb of space.

[me-no-dev]

here is some info
#2351
Needs updated esptool and to be tested :)

[igrr]

I have merged everything, esptool will also be updated soon.