Does the ESP8285 SoC have a factory boot loader?
Posted:
Wed Apr 17, 2019 1:13 pmby sfranzyshen
I know this seams like a newbie question but does the esp8285 SoC come boot strapped with a boot loader within it's internal flash from the factory?
Re: Does the ESP8285 SoC have a factory boot loader?
Posted:
Wed Apr 17, 2019 3:41 pmby btidey
My understanding is that the internal system ROM in the chip is located at 40000000 and this contains basic system functions.
If you have sdk then there is a file called eagle.rom.addr.v6.ld which lists all the functions in there.
Of significant interest is that provides uart and download routines to program the external flash. It reads the 3 GPIO boot mode pins and determines what to execute on reset.
Re: Does the ESP8285 SoC have a factory boot loader?
Posted:
Fri Apr 19, 2019 12:57 pmby sfranzyshen
btidey wrote:My understanding is that the internal system ROM in the chip is located at 40000000 and this contains basic system functions.
If you have sdk then there is a file called eagle.rom.addr.v6.ld which lists all the functions in there.
Of significant interest is that provides uart and download routines to program the external flash. It reads the 3 GPIO boot mode pins and determines what to execute on reset.
Perfect ... Thanks for the timely response