Hi Milan, On 7/30/23, Milan Obuch <nuttx-...@dino.sk> wrote: sic >> 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. > > Hi, > > do you see any possible solution to this problem? Now, as you can test > it locally, it should be easier for you to test it. >
Yes, now I can help you! >> 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. > > What kind of differences? What impact do they cause to NuttX > configuration and build? > I think there are some incompatibility with current ESP32S2 initialization, but I cannot test with JTAG because they also didn't extern the JTAG pins. >> 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. > > That's fine. Do we need some glue to use existing driver? Working USB > would make this board more useful. > Exactly! We already have ESP32-S3 USB Dev support, but S2 uses different initialization. We need to compare with ESP-IDF to understand what they are doing to initialize the USB on ESP32-S2. BR, Alan
