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README updates 

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@3242 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo 2011-01-11 12:43:02 +00:00
parent a9b8f8a22c
commit 294b85ddec
3 changed files with 55 additions and 5 deletions
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50
nuttx/configs/mbed/README.txt
View File

@ -12,6 +12,7 @@ Contents
NuttX buildroot Toolchain
USB Device Controller Functions
mbed Configuration Options
USB Host Configuration
Configurations
Development Environment
@ -305,7 +306,7 @@ mbed Configuration Options
CONFIG_NET_MULTICAST - Enable receipt of multicast (and unicast) frames.
Automatically set if CONFIG_NET_IGMP is selected.
LPC17xx USB Configuration
LPC17xx USB Device Configuration
CONFIG_LPC17_USBDEV_FRAME_INTERRUPT
Handle USB Start-Of-Frame events.
@ -320,6 +321,53 @@ mbed Configuration Options
CONFIG_LPC17_USBDEV_DMA
Enable lpc17xx-specific DMA support
LPC17xx USB Host Configuration
CONFIG_USBHOST_OHCIRAM_SIZE
Total size of OHCI RAM (in AHB SRAM Bank 1)
CONFIG_USBHOST_NEDS
Number of endpoint descriptors
CONFIG_USBHOST_TDBUFFERS
Number of transfer descriptor buffers
CONFIG_USBHOST_TDBUFSIZE
Size of one transfer descriptor buffer
CONFIG_USBHOST_IOBUFSIZE
Size of one end-user I/O buffer. This can be zero if the
application can guarantee that all end-user I/O buffers
reside in AHB SRAM.
USB Host Configuration
^^^^^^^^^^^^^^^^^^^^^^
The NuttShell (NSH) mbed can be modified in order to support USB
host operations. To make these modifications, do the following:
1. First configure to build the NSH configuration from the top-level
NuttX directory:
cd tools
./configure mbed/nsh
cd ..
2. Then edit the top-level .config file to enable USB host. Make the
following changes:
CONFIG_LPC17_USBHOST=n
CONFIG_USBHOST=n
CONFIG_SCHED_WORKQUEUE=y
When this change is made, NSH should be extended to support USB flash
devices. When a FLASH device is inserted, you should see a device
appear in the /dev (psuedo) directory. The device name should be
like /dev/sda, /dev/sdb, etc. The USB mass storage device, is present
it can be mounted from the NSH command line like:
ls /dev
mount -t vfat /dev/sda /mnt/flash
Files on the connect USB flash device should then be accessible under
the mountpoint /mnt/flash.
Configurations
^^^^^^^^^^^^^^

6
nuttx/configs/nucleus2g/README.txt
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@ -434,6 +434,7 @@ Nucleus 2G Configuration Options
Enable lpc17xx-specific DMA support
LPC17xx USB Host Configuration
CONFIG_USBHOST_OHCIRAM_SIZE
Total size of OHCI RAM (in AHB SRAM Bank 1)
CONFIG_USBHOST_NEDS
@ -450,8 +451,9 @@ Nucleus 2G Configuration Options
USB Host Configuration
^^^^^^^^^^^^^^^^^^^^^^
The NuttShell (NSH) Nucleus 2G can be modified in order to support
USB host operations. To make these modifications, do the following:
The NuttShell (NSH) Nucleus 2G configuration can be modified in order
to support USB host operations. To make these modifications, do the
following:
1. First configure to build the NSH configuration from the top-level
NuttX directory:

4
nuttx/drivers/usbhost/usbhost_storage.c
View File

@ -1085,14 +1085,14 @@ static inline int usbhost_cfgdesc(FAR struct usbhost_state_s *priv,
ret = DRVR_EPALLOC(priv->drvr, &boutdesc, &priv->bulkout);
if (ret != OK)
{
udbg("ERROR: Failed to allocated Bulk OUT endpoint\n");
udbg("ERROR: Failed to allocate Bulk OUT endpoint\n");
return ret;
}
ret = DRVR_EPALLOC(priv->drvr, &bindesc, &priv->bulkin);
if (ret != OK)
{
udbg("ERROR: Failed to allocated Bulk IN endpoint\n");
udbg("ERROR: Failed to allocate Bulk IN endpoint\n");
(void)DRVR_EPFREE(priv->drvr, priv->bulkout);
return ret;
}