Problem fixed. Bluetooth Modem Sleep was the problem. Zero errors in several days, when I disabled it.

Hardware: ESP32 Rev3 ESP-IDF: git tag v4.2 The example code that im using is a mix of "bluetooth/nimble/bleprph" and "peripherals/uart/uart_echo_rs485", which is in attachment. You can change the pins in the IDF menuconfig. There are no logs in the example code, because im using my own JTAG-Logging....

That is only happening with WLAN or with Bluetooth. With WLAN there are 1 or 2 errors in a hour and with Bluetooth every 1-2 minutes.
If both WLAN and Bluetooth is turned off, it is running several days without any errors.

Why? And can I prevent this errors, with Bluetooth and WLAN turned on?

Hi, I'm using the UART with DMA by accessing the registers directly without using the driver from the sdk. Currently Im testing a RS485 communication at a baudrate of 230400. And there im getting 1 or 2 crc errors in a hour. On the oscilloscope it is all fine. No reason why the ESP32 should read som...

Hi, I want to use the RMT peripheral to detect that nothing change on a bus. I configured RMT so, that it should trigger an interrupt, if the input pin doesnt change for 1,75 ms. Im using that peripheral in combination with UART receive timeout. The RMT receiver is always enabled and I'm enabling th...

Problem solved - Never searched in UART struct for something related to this (UART.idle_conf.rx_idle_thrhd).

Hey, I tried to use UART DMA on lowest level (using only registers, because of performance reasons), which also works. But I cannot change the idle time of the UART DMA. It seems that the idle time is fixed to 185 bytes. I have activated this idle time by setting UHCI.uart_idle_eof_en, but did not f...