Thank you for your answer.
This was a toy exemple.
Indded, I force GPIO9 to ground and reset device before flashing but this doesn't not help.
It's no more possible to access the device.

Hello, I run this very simple code: ESP_ERROR_CHECK(esp_timer_init()); printf("\nStarted timers, time since boot: %lld us", esp_timer_get_time()); vTaskDelay(pdMS_TO_TICKS( 10 )); while(1); Nothing is printed on screen and I can't access anymore the device by USB. For USB, I use USB to JTAG connecte...

Hi, My ESP-IDF version is 4.3 I would like to use USB Serial/JTAG Controller Console. Reading documentation ESP32-C3 master(latest):: Software Configuration USB console feature can be enabled using CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG option in menuconfig tool (see CONFIG_ESP_CONSOLE_UART). Found in: ...

Thank you ESP_Sprite, using SPI1 it works

You are correct there are only 3 SPI interface but SPI3_HOST exist . or to simplify SPI0, SPI1, SP2 What I see is using the value 2, it doesn't work : error message "invalid host_id" So on my side, I can't access the third SPI interface. Could you ? spi_types.h SPI_EV_BUF_TXtypedef enum { //SPI1 can...

Hi, Environment: board ESP32-C3-DevKitC-02 ESP-IDF V4.3 chip revision 3 Issue I have an issue with SPI master. ret = spi_bus_initialize( SPI2_HOST , &buscfg, DMA_CHAN); this is OK but ret = spi_bus_initialize( SPI3_HOST , &buscfg, DMA_CHAN); this is not OK During execution, it fails with the error m...