Hi Milan, On 6/30/23, Milan Obuch <nuttx-...@dino.sk> wrote: ... >> 1) Connect a USB/Serial adapter directly the the pins used as UART0, >> not ideal because probably you don't want attachment like it to your >> board; > > Problem here is not using additional USB/serial cable, I do it > regularly if necessary or useful, but pins for UART0 (GPIOs 43 and 44) > are not available on any pin, thus my attempt to use UART1. GPIOs 17 > and 18 are accessible on this board, is it not possible to use them for > console? >
I got an S2 Mini V1.0.0 WEMOS.CC like yours and confirmed the issue. After changing the pins to 33 and 34 (as you noticed pins 43 and 44 are not available, Wemos' mistake) the serial console is not showing up. This board use the ESP32-S2 with internal SPI flash, so there are some small differences in relation to the original ESP32-S2 with external SPI flash. >> 2) add support to USB Device on ESP32-S2, fortunately there is a port >> done for ESP32-S3 and that could be used as base, because the USB >> Controller is basically the same with only some differences related >> pins, clock initialization, etc. Probably looking how it is done on >> IDF you will get it working. > > Should I take it as there is no USB support for ESP-S2 at the moment? > From ESP32-S3, which files are to be ported? I am not sure I can do it > myself as I am only starting to learn Espressif devices... and, to be > honest, I am still learning basics of NuttX as well. > The ESP32-S2 and S3 USB IP is the same DWC USB controller used on Raspberry and some STM32 chips. So we could use the existing driver on NuttX as starting point. BR, Alan
