Discuss here different C compiler set ups, and compiling executables for the ESP8266

User avatar
By raspberrypidmx
#50249 Hi,

I am using the latest RTOS SDK. My environment is setup correctly. I am able to compile, link and upload non-OTA firmware.

While compiling with the code "if (system_upgrade_start(update) == false)", I get the following error :

user_main.c:678: undefined reference to `system_upgrade_start'

There is no libupgrade provided with the RTOS SDK. Which other lib must be used?

Many thanks in advance,
Arjan