Hello, I am trying to enable USB CDC support with base NSH Serial in a STM32F4 Discovery board.
When I build using usbnsh configuration, it works. When I build using nsh configuration (in my case, replacing USART2 to USART1), it works. Now, when I try to add USB CDC support in nsh configuration, I cannot see the nsh prompt on the serial anymore. And USB is not initializing either. Here is the defconfig file that I am using. Am I missing something? # CONFIG_ARCH_FPU is not set # CONFIG_NSH_ARGCAT is not set # CONFIG_NSH_CMDOPT_HEXDUMP is not set # CONFIG_NSH_CMDPARMS is not set # CONFIG_STM32_CCMEXCLUDE is not set CONFIG_ARCH="arm" CONFIG_ARCH_BOARD="stm32f4discovery" CONFIG_ARCH_BOARD_STM32F4_DISCOVERY=y CONFIG_ARCH_BUTTONS=y CONFIG_ARCH_CHIP="stm32" CONFIG_ARCH_CHIP_STM32=y CONFIG_ARCH_CHIP_STM32F407VG=y CONFIG_ARCH_STACKDUMP=y CONFIG_BOARD_LATE_INITIALIZE=y CONFIG_BOARD_LOOPSPERMSEC=16717 CONFIG_BUILTIN=y CONFIG_CDCACM=y CONFIG_EXAMPLES_HELLO=y CONFIG_FS_PROCFS=y CONFIG_HAVE_CXX=y CONFIG_HAVE_CXXINITIALIZE=y CONFIG_INTELHEX_BINARY=y CONFIG_MAX_TASKS=16 CONFIG_MM_REGIONS=2 CONFIG_NFILE_DESCRIPTORS=8 CONFIG_NSH_BUILTIN_APPS=y CONFIG_NSH_FILEIOSIZE=512 CONFIG_NSH_LINELEN=64 CONFIG_NSH_READLINE=y CONFIG_PREALLOC_TIMERS=4 CONFIG_RAM_SIZE=114688 CONFIG_RAM_START=0x20000000 CONFIG_RAW_BINARY=y CONFIG_RR_INTERVAL=200 CONFIG_SCHED_WAITPID=y CONFIG_SDCLONE_DISABLE=y CONFIG_START_DAY=6 CONFIG_START_MONTH=12 CONFIG_START_YEAR=2011 CONFIG_STM32_DMA1=y CONFIG_STM32_JTAG_SW_ENABLE=y CONFIG_STM32_OTGFS=y CONFIG_STM32_PWR=y CONFIG_STM32_SPI1=y CONFIG_STM32_USART1=y CONFIG_SYSTEM_CDCACM=y CONFIG_SYSTEM_NSH=y CONFIG_USART1_RXBUFSIZE=128 CONFIG_USART1_SERIAL_CONSOLE=y CONFIG_USART1_TXBUFSIZE=128 CONFIG_USBDEV=y CONFIG_USER_ENTRYPOINT="nsh_main" Best regards, Flavio -- Flavio de Castro Alves Filho flavio.al...@gmail.com Twitter: http://twitter.com/#!/fraviofii LinkedIn profile: www.linkedin.com/in/flaviocastroalves
