-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 07/07/2016 11:22 PM, meino.cra...@gmx.de wrote: > Hi, > > I have bought an ESP8266 Lua NodeMCU board, which has > an FTDI-like chip on board to map USB to serial and > vice versa. It is an CH340 one. > There is an according module in the driver (compiled > and - to get shure - loaded by hand). > > When I connect the ESP8266 board to my Gentoo PC > nothing happens (dmesg shows nothing). > When pressing RST on the board, I see this sometimes: > > [ 4340.105221] usb 7-4: new full-speed USB device number 9 using ohci-pci > [ 4340.630234] usb 7-4: device not accepting address 9, error -62 > > (both lines are printed right after another - no delay...) > > or this: > > [ 4473.567739] usb 7-4: new full-speed USB device number 11 using ohci-pci > [ 4473.712306] usb 7-4: New USB device found, idVendor=1a86, idProduct=7523 > [ 4473.712316] usb 7-4: New USB device strings: Mfr=0, Product=2, > SerialNumber=0 > [ 4473.712321] usb 7-4: Product: USB2.0-Serial > [ 4473.763259] usbcore: registered new interface driver ch341 > [ 4473.763278] usbserial: USB Serial support registered for ch341-uart > [ 4473.763295] ch341 7-4:1.0: ch341-uart converter detected > [ 4473.786463] usb 7-4: ch341-uart converter now attached to ttyUSB1 > [ 4473.888987] usb 7-4: USB disconnect, device number 11 > [ 4473.889485] ch341-uart ttyUSB1: ch341-uart converter now disconnected from > ttyUSB1 > [ 4473.889511] ch341 7-4:1.0: device disconnected > [ 4474.292773] usb 7-4: new full-speed USB device number 12 using ohci-pci > > there is no new device under /dev/. > > Do I miss something seriously important here related to using the > CH340 driver...or is this board simply demaged ??? > > Thank you very much in advance for any help! > > Best regards, > Meino
What's running on the board? I'm not familiar with it or arduinos at all but it looks like it's being detected and then disconnected. Are you trying to program the board through USB? If so, and since it's detected when you reset the board, my guess is that it's got some kind of bootloader that is initializing the UART->USB adapter and passing control to whatever firmware is already loaded, and that firmware is not driving the UART/USB adapter. If that's the case the board's manual should tell you how to program it. Fernan -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJXgD6zAAoJEPbOFX/5Ulwc7+QP/3q9pQunL9XJiWounkakNjZe Yb3jNK0D+G50T2/DGzFSMK/sXsEcTAr/w9Dhm2txwutPf3wGibr8O3gdfneRy/Gm ImMXAqjL9ag3SFT3o5D7t97qKxRBJKOYa9enzBUDQGpUpQYJPRvn9v7PWJFwEHza jVZJcW4HfnGeTdDgeqOsM8nbi8GITDd+WOV1tnIv573ifs3TCW5nGisEtCqwoVui knzOc9I+DLY0QEPEEBnZlmiOQR6nsJQNrX3ixs/2odTO/lX10xmdTSy94yWMBuqY 8d8FYyiizjx9rkJamks5P04Q7hvXZos32EgcWq4jKINL4fyOXhfg9uxNs2366Wwh bOlvt5wJdwH5ABvEcN71jU8pm9UrrdfDnXgRZY/irGWAxsLSWhftVIAlIz4hTSUa 2uowKMvKULXUJLFdVSltAItuXe2WM0pqEzoKPb9iXFZY88aWvGomrZxlbCtBQ3Gg t2TYSzOYljnzYs+dVm22JBLtgbrxfaJexisJ3O/7h8gs6ACm0M9zi33Rm1df5Cgp 6o9ihJynW9svsJVab72LsRmbe0lVv+HgNfwKr5O3IEIE1Y7BhPx5EAFrgfE6M/SK 2sKR4YzdRgpxM7Td4wHtiCaROCfGsxK4wd69n2H2bp7cYPofYa48C//wZJWV6gmr X0oZGic3DDPrR+77Hzi6 =eEG4 -----END PGP SIGNATURE-----
