1.modify cross.txt set your gcc pass you can download gcc from
https://xpack.github.io/riscv-none-embed-gcc/
2.build hello_world
cd hello_world
meson setup _build --cross-file cross.txt
3.build
cd _build
ninja
windows
first you need install python3
pip install esptool
then
esptool.py --port COM3 --baud 921600 write_flash 0x0000 demo.bin
python -m serial.tools.miniterm COM3 115200
exit you can
ctrl + ]