Hi Thiha, My stm32f4discovery board is MB997B (not the newer version).
It is strange, I don't believe you are the first person to test USB Console on stm32f407g-disc1 (but I could be wrong). I searched for differences between these boards, and they don't appear related to USB: https://community.st.com/s/question/0D50X00009XkZJVSA3/stm32f4discovery-vs-stm32f407gdisc1-exact-differences-hardware-or-software Since Linux is detecting it as ttyACM1 it means that the basic USB initialization is working. Is the LD5 turned on all the time or is it blinking? BR, Alan On 12/2/20, Thiha Kyaw <thiha....@gmail.com> wrote: > Dear Alan, > > I am switching back to normal nsh. > > But I want to update a bit. > > I got ttyACM1 after building using the latest Nuttx. ttyACM0 is from > STLINK. > But nsh> shell doesn't appear. > > After hitting <Enter> a few times, the serial terminal is freezed. > > I have another board, STM32F429i-Disco. I didn't face this problem in F429i > Board. > > stm32F407G-disc1 mini USB is at FS USB mode. > TM32F429i-Disco's mini usb is at HS USB mode. > > I am not sure it could be the problem in usbnsh configuration. > > @Berennan, > > STLINK chip on stm32F407G-disc1 does not connect to any UART port. That's > why STLINK port cannot use as a console as well. > > It is very special case. > > Thank you. > > Regards, > Thiha > > > > On Thu, Dec 3, 2020 at 3:24 AM Alan Carvalho de Assis <acas...@gmail.com> > wrote: > >> Yes, good point! >> >> The USB at the bottom of the board is the USB that will work as USB >> CDC/ACM Console. >> >> BR, >> >> Alan >> >> On 12/2/20, Brennan Ashton <bash...@brennanashton.com> wrote: >> > It is also worth checking here are you connecting to both USB ports on >> > the board? That configuration will expose a CDC/ACM device on the >> > non-debug USB port on the board. >> > >> > It is also worth noting that they made a slight change to the design >> > around the debugger in that version so you can also get the UART via >> > ST-Link port and (I believe) be able to just use that with the NSH >> > (non usb) configuration to get the console. >> > >> > --Brennan >> > >> > On Wed, Dec 2, 2020 at 9:41 AM Alan Carvalho de Assis >> > <acas...@gmail.com >> > >> > wrote: >> >> >> >> Hi Thiha, >> >> >> >> I don't know what you mean "does not work". >> >> >> >> It is like someone calling the Help Desk and saying: "My computer >> >> doesn't work" Hehehe >> >> >> >> You need to describe what exactly is not working based on the steps >> >> you are doing. >> >> >> >> After flashing the firmware and resetting the board, does the dmesg >> >> command on Linux shows that a CDC/ACM ttyUSB0 device was detected? >> >> >> >> Just a dump question: >> >> >> >> Did you hit <ENTER> three times after opening /dev/ttyUSB0 on minicom? >> >> >> >> BR, >> >> >> >> Alan >> >> >> >> On 12/2/20, Thiha Kyaw <thiha....@gmail.com> wrote: >> >> > Dear Nuttx, >> >> > >> >> > USBNSH console does not work in stm32F407G-disc1 Board. >> >> > >> >> > stm32F407G-disc1 is upgraded version of stm32f4discovery board. >> >> > >> >> > I only see the serial port from STLINK. >> >> > >> >> > How can I get nuttx serial port from USB? >> >> > >> >> > I use Ubuntu 18.04 >> >> > >> >> > Thanks. >> >> > >> >> > -- >> >> > Yours Sincerely, >> >> > Thiha Kyaw >> >> > >> > >> > > > -- > Yours Sincerely, > Thiha Kyaw >
