STM32F103 dev board
I'm about to make nuttx running on a STM32F103 development board from china , but I don't get nsh shell to connect to. The board is not even registering to my linux pc as it should be and is detected as an unknown usb device. But I expect the board as an CDC/ACM device.
I used the stm32_tiny  config because it is equipped with the same processor and just has an additional wireless module which is deactivated because CONFIG_WL_NRF24L01 is not set. I also checked the other configuration via "make menuconfig" and it seems to be ok - nsh should be activated to listen to USB.
Compiling works and flashing via stlink_v2 works as well:
st-flash write nuttx.bin 0x8000000 2015-05-02T21:42:10 INFO src/stlink-common.c: Loading device parameters.... 2015-05-02T21:42:10 INFO src/stlink-common.c: Device connected is: F1 Medium-density device, id 0x20036410 2015-05-02T21:42:10 INFO src/stlink-common.c: SRAM size: 0x5000 bytes (20 KiB), Flash: 0x20000 bytes (128 KiB) in pages of 1024 bytes 2015-05-02T21:42:10 INFO src/stlink-common.c: Attempting to write 50012 (0xc35c) bytes to stm32 address: 134217728 (0x8000000) Flash page at addr: 0x0800c000 erased 2015-05-02T21:42:11 INFO src/stlink-common.c: Finished erasing 49 pages of 1024 (0x400) bytes 2015-05-02T21:42:11 INFO src/stlink-common.c: Starting Flash write for VL/F0/F3 core id 2015-05-02T21:42:11 INFO src/stlink-common.c: Successfully loaded flash loader in sram 48/48 pages written 2015-05-02T21:42:14 INFO src/stlink-common.c: Starting verification of write complete 2015-05-02T21:42:15 INFO src/stlink-common.c: Flash written and verified! jolly good!According to the datasheet  the flash memory starts at address 0x800000 and the the BOOT0 pin is jumpered to ground, so it should boot from flash as well.
Any ideas what I might have missed or why it is not working the way it should?