Custom Bootloader for esp8266

[jassi007]

I was searching for some custom Bootloaders for esp8266 and found just reboot : https://github.com/raburton/rboot

I need to know how to begin working on a custom Bootloader and how to install the new Bootloader onto the esp8266 chip.

Is there any size limit on the Bootloader?
Also, I believe that the Bootloader is directly install inside the esp8266 chip and not the flash chip.

Can the Bootloader access the fuse bits of the chips.

[Her Mary]

https://github.com/espressif/ESP8266_RT ... bootloader

[jassi007]

Thanx

Is there a Bootloader for non-RTOS version ?

And how do I start if I want to make my own custom Bootloader