I think you want to add "main" to INCLUDE_DIRS in CMakeLists.txt. This should add the main folder to the global include search path.

For example

I'm trying to communicate with a sensor using the 1-Wire protocol from the ULP-RISC-V coprocessor on the ESP32-S2. To do this I need microsecond-ish precision delays. There is an older post on the forum looking at how to implement a cycle-based wait, similar to the wait instruction for the ULP-FSM ,...

Thanks for the help ESP_Angus! Your explanation (and solution) really made things clear.

According to the manual , the ULP-RISC-V co-processor on the esp32-s2 can be programmed with both C and assembly. I'm having trouble getting a trivial example using both C and assembly to work. My code ( on GitHub ) builds and runs, but doesn't return the correct result from a function implemented i...

I don't use VSC, so I can't help with it specifically, but maybe this is better than nothing! 1. You can import code using the CMake build system . The file CMakeLists.txt specifies the paths for all the source and header files your project needs. idf_component_register(SRCS "hello-world.c" INCLUDE_...

I am trying to take periodic temperature measurements from the ULP RISC-V coprocessor on the ESP32-s2. The following code reads the on-chip temperature sensor from the ULP and is based on section 30.4.3 of the technical reference . static uint32_t read_temperature(void) { uint32_t temp, ready; SET_P...