Thanks to pctj101, there is now some example code available: https://github.com/espressif/esp-idf/pull/1006

There is little benefit in a new chip with an even broader feature set if Espressif keeps on failing to deliver on the SDK side. Take a closer look at the ESP32. The feature set of that chip already is rather awesome. But many of those features are either hard to use or simply broken. So please do u...

This is gonna be difficult without more detailed information about the crash. Try to get the crash dump as described in the manual: https://esp-idf.readthedocs.io/en/v2.0/core_dump.html

Have you checked the crash output? Furthermore, is it possible that you simply try to send an array of zero bytes and your application crashes elsewhere? Lastly, regarding your suspicion that this is caused by Errata 3.10, does the crash still occur if you select "Run FreeRTOS only on first core" in...

I've got an answer from Espressif in the meantime: "The example for RS-485 is already in our development plan and it will be released later." Unfortunately they haven't provided any ETA. @hwmaier: Thank you for the software based implementation. @ESP_Sprite: I've now created such a feature request (...

@hwmaier: Yes, that's more or less what we are currently doing. Regarding uart_wait_tx_done the documentation says that this call blocks until the TX FIFO is empty. That however doesn't necessarily means that the last bit of the data is already shifted out once that call returns. We kinda expect thi...

I've now submitted a technical inquiry to Espressif directly. Let's see whether we get an answer...

Hi there The datasheet claims that there is some RS-485 support and in the IDF reference manual there are also some related registers. Unfortunately there is very limited documentation of this feature and I just cannot make sense of the very short register documentation. Could anyone else already fi...