Wow!, fully answered and very quick. Hopefully, your breath is back to normal
Answers are a big help for me.
Mapping of rx and tx to other pins is big.
No problem anymore to switch between terminal and other UART-devices.
Thanks a lot.

After seeing new files in ESP-IDF for uart, I tried to get my hands on. First step was to get a better understanding whats going on behind the curtain. As expected I have a lot of questionmarks, would be great if somebody could help - is it possible, to use UART2 without rx ? AFAIK with devkit only ...

Thanks for the feedback.
After changing the flag in menuconfig, I got suspend and resume running.
At least in my first Q&U testcase (Q&U is Quick&Ugly )

Trying to supend a task always results in panic. Any idea what I'm doing wrong ? TaskHandle_t handleTest = NULL; static void test(void *data){ vTaskDelay(10000 / portTICK_PERIOD_MS); ESP_LOGE("Test","will suspend now"); vTaskSuspend(handleTest); ESP_LOGE("Test","just suspended"); } int app_main(void...

Thanks a lot for detailled feedback. Even simple things can be very complex

In repository are a lot of esp32-hal-xxx files.
Could those be used together with esp-idf for application running on dev board ?

@Rudi, thanks for your detailled tour through gpio interrupts. I'm working on same problem during porting Javascript(Espruino) to the ESP32. After reading all your replies I still have some questions - what is gpio_pad_select_gpio for ? I'm getting a similiar result without this function - you added...

Interesting question, do you have any software for VSPI ?
I could find some definitions for register etc. but no functions.

Following ESP32_RTOS_SDK_API reference, system_adc11_read is the way to read analog values from GPIO pins.
What do I need to to, to get it running. Right now I cannot find a header file or something else.