Hi ESP-IDF forum.
I'm using ESP-S3 jtag for USB serial log output.
I want to flush log before light sleep and
write as follows

fflush(stdout);
fsync(fileno(stdout));

but it didn't flushed.
I think it mean that ESP-S3's jtag don't equal stdout but
I don't undersand detail.
Please teach me how ...

I reinstalled VS-Code and PlatformIO and removed cmake app and pressed en button of Lolin S3 Pro.
I don't know what kind of process can clear serial ouput.
Anyway I can put serial logs.
thanks.

I'm using Lolin S3 PRO(ESP32-S3-WROOM-1).
I used Arduino Ide and I needed to use ulp.
So I need to change ide from Arduino Ide to PlatformIO(VS-Code).
I created a Hello world PlatformIO project and parameters are as follows

Name:HelloWorld
Board:WEMOS LOLIN S3 PRO
Framework:Espidf

platformio.ini ...