Tbh, I doubt crosstalk is an issue of the ESP32... the RMT is using the GPIO matrix like everything else. Are you sure you don't have a different source of crosstalk? Yes, could be generate from the test board, sometimes I forget that using such frequencies (20MHz) on a breadboard (just for testing...

Once the spi bus is initialized, the device added and the device initialized (you can call spi_device_transmit for that), you no longer need to use queued/DMA data transfer. You can add the simple functions for non-queued/no-DMA data transfer to spi_master driver: This example is for non-duplex mod...

I understand your question, but in hardware, this is just not possible. We support linked lists of DMA data regions, but they all need to be in one transaction, they can not be in multiple different ones. Maybe a weird idea, but perhaps you can use the RMT peripheral for this? It supports precisely...

In my application I need to send a series of 16-bit wide SPI commands to some slave devices (A/D converters). Since the chip-select line is used to initiate ADC sampling I need to send command at a given repetition rate (i.e. every 1.5us) with a serial clock speed of 20MHz like in the diagram below....

Configuring the SPI master peripheral (HSPI) I require at least half bit-cycle after transmission before the chip-select becomes inactive. The SPI device interface configuration structure has a member called 'cs_ena_posttrans' which should be set to the number of bit-cycle to wait. Actually setting ...

Here is just a suggestion to modify (for esthetical reason) the main Kconfig in ESP-IDF. In my opinion the main screen should include only menus while Optimization level is included as a choice. The generated sdkconfig file will then append the Optimization level option at the end of the Partition t...

ESP_Angus wrote:The 32-bit toolchain download link has been fixed. Sorry for the inconvenience.

Thanks for this fix

matiasjara wrote: Any help?
Thank you!

Updating the IDF seems to resolve this issue:

WARNING: Toolchain version is not supported: crosstool-NG crosstool-ng-1.22.0-59-g8d95cad Expected to see version: crosstool-NG crosstool-ng-1.22.0-61-gab8375a Please check ESP-IDF setup instructions and update the toolchain, or proceed at your own risk. WARNING: Compiler version is not supported: ...

Yes, the same code compiles on Linux 64 with xtensa-esp32-elf-linux64-1.22.0-61 but NON on Linux 32 with xtensa-esp32-elf-linux32-1.22.0-59. The main topic is that I would like to update the toolchain on Linux 32 too with xtensa-esp32-elf-linux32-1.22.0-61 BUT the link is broken: https://dl.espressi...