configs/stm32f4discovery: Remove STM32F4BB dependence from rndis; add RAMDISK support.

configs/stm32f4discovery/README.txt

@@ -2210,6 +2210,54 @@ Configuration Sub-directories
     This configuration uses the example at apps/examples/rgbled to drive the
     external RGB LED>
 
+  rndis:
+  ------
+
+    This is a board configuration to demonstrate how to use Ethernet-over-USB,
+    in this case using the RNDIS protocol. Using it you can get access to your
+    board using Telnet or you can use transfer file to it. Both steps will be
+    explained below.
+
+    Your board will be get IP address from a DHCP server. If you want to use a
+    fixed IP instead using DHCP, you need to disable the DHCP Client and set
+    up its IP. For more info watch: www.youtube.com/watch?v=8noH8v7xNgs
+
+    You can access the board's NuttShell just typing in the Linux terminal:
+
+      $ telnet 10.0.0.2
+
+    You should see something like this:
+
+      Trying 10.0.0.2...
+      Connected to 10.0.0.2.
+      Escape character is '^]'.
+
+      NuttShell (NSH)
+      nsh>
+
+    This board configuration has support to RAMDISK because we need a writable
+    filesystem to get files from the computer. Then you need to create first a
+    RAMDISK and mount it using these steps:
+
+      nsh> mkrd 64
+      nsh> mkfatfs /dev/ram0
+      nsh> mount -t vfat /dev/ram0 /mnt
+
+    Open a new Linux terminal and start a webserver, Python one embedded:
+
+      $ python -m SimpleHTTPServer
+
+    It will create a webserver serving in the port 8000 and will share files
+    in the current directory where it was executed.
+
+    Then in the NuttShell you can run these commands to download a small file:
+
+      nsh> cd /mnt
+      nsh> wget http://10.0.0.1:8000/test.txt
+      nsh> ls -l
+      /mnt:
+       -rw-rw-rw-      23 test.txt
+
   usbnsh:
   -------
 

configs/stm32f4discovery/rndis/defconfig

@@ -1,11 +1,8 @@
 # CONFIG_ARCH_FPU is not set
-# CONFIG_MMCSD_MMCSUPPORT is not set
-# CONFIG_MMCSD_SPI is not set
 # CONFIG_NSH_ARGCAT is not set
 # CONFIG_NSH_CMDOPT_HEXDUMP is not set
 # CONFIG_NSH_CMDPARMS is not set
 # CONFIG_NSH_DISABLE_DATE is not set
-# CONFIG_STM32_SDIO_DMA is not set
 CONFIG_ARCH="arm"
 CONFIG_ARCH_BOARD="stm32f4discovery"
 CONFIG_ARCH_BOARD_STM32F4_DISCOVERY=y
@@ -33,9 +30,6 @@ CONFIG_HOST_WINDOWS=y
 CONFIG_INTELHEX_BINARY=y
 CONFIG_MAX_TASKS=16
 CONFIG_MAX_WDOGPARMS=2
-CONFIG_MMCSD=y
-CONFIG_MMCSD_MULTIBLOCK_DISABLE=y
-CONFIG_MMCSD_SDIO=y
 CONFIG_NET=y
 CONFIG_NETDB_DNSCLIENT=y
 CONFIG_NETDB_DNSSERVER_IPv4ADDR=0x0
@@ -68,29 +62,25 @@ CONFIG_NSH_READLINE=y
 CONFIG_PREALLOC_MQ_MSGS=4
 CONFIG_PREALLOC_TIMERS=4
 CONFIG_PREALLOC_WDOGS=16
+CONFIG_RAMDISK=y
 CONFIG_RAM_SIZE=114688
 CONFIG_RAM_START=0x20000000
 CONFIG_RAW_BINARY=y
 CONFIG_RNDIS=y
-CONFIG_SCHED_HPWORK=y
-CONFIG_SCHED_HPWORKPRIORITY=192
+CONFIG_SCHED_LPWORK=y
 CONFIG_SCHED_WAITPID=y
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SENSORS=y
 CONFIG_START_DAY=13
 CONFIG_START_MONTH=9
 CONFIG_START_YEAR=2014
-CONFIG_STM32F4DISBB=y
 CONFIG_STM32_DMA2=y
 CONFIG_STM32_DMACAPABLE=y
 CONFIG_STM32_JTAG_SW_ENABLE=y
 CONFIG_STM32_OTGFS=y
 CONFIG_STM32_PWR=y
-CONFIG_STM32_SDIO=y
 CONFIG_STM32_SPI1=y
-CONFIG_STM32_USART6=y
-CONFIG_USART6_RXBUFSIZE=64
-CONFIG_USART6_SERIAL_CONSOLE=y
-CONFIG_USART6_TXBUFSIZE=64
+CONFIG_STM32_USART2=y
+CONFIG_USART2_SERIAL_CONSOLE=y
 CONFIG_USBDEV=y
 CONFIG_USER_ENTRYPOINT="nsh_main"