PIC32 USB mass storage device works; USB and MSC are now enabled by default in the PIC32MX7 MMB configuration
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4801 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
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@ -1171,31 +1171,5 @@ Where <subdir> is one of the following:
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NOTE: This modification should be considered experimental. IN the
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little testing I have done with it, it appears functional. But the
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logic has not been stressed and there could still be lurking issues.
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Update. The following was added to the top-level TODO list:
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Title: PIC32 USB DRIVER DOES NOT WORK WITH MASS STORAGE CLASS
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Description: The PIC32 USB driver either crashes or hangs when used with
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the mass storage class when trying to write files to the target
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storage device. This usually works with debug on, but does not
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work with debug OFF (implying some race condition?)
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Here are some details of what I see in debugging:
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1. The USB MSC device completes processing of a read request
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and returns the read request to the driver.
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2. Before the MSC device can even begin the wait for the next
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driver, many packets come in at interrupt level. The MSC
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device goes to sleep (on pthread_cond_wait) with all of the
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read buffers ready (16 in my test case).
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3. The pthread_cond_wait() does not wake up. This implies
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a problem with pthread_con_wait(?). But in other cases,
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the MSC device does wake up, but then immediately crashes
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because its stack is bad.
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4. If I force the pthread_cond_wait to wake up (by using
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pthread_cond_timedwait instead), then the thread wakes
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up and crashes with a bad stack.
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So far, I have no clue why this is failing.
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Status: Open
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Priority: High
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(There is a bug associated with this configuration listed in the
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top-level TODO list).
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@ -579,22 +579,49 @@ Where <subdir> is one of the following:
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CONFIG_PIC32MX_SPI1=y
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CONFIG_NSH_ARCHINIT=y
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The SD card can be mounted from the NSH command line as follows:
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nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard
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nsh> ls -l /mnt/sdcard
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/mnt/sdcard:
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-rw-rw-rw- 16 ATEST.TXT
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-rw-rw-rw- 21170 TODO
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-rw-rw-rw- 22 ANOTHER.TXT
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-rw-rw-rw- 22 HI2148.TXT
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-rw-rw-rw- 16 HiFromNotePad.txt
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USB Configurations.
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------------------
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Several USB device configurations can be enabled and included
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as NSH built-in built in functions. USB is *not* enabled by default.
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To use USB device, connect the starter kit to the host using a cable
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with a Type-B micro-plug to the starter kit’s micro-A/B port J5, located
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on the bottom side of the starter kit. The other end of the cable
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must have a Type-A plug. Connect it to a USB host. Jumper JP2 should be
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removed.
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All USB device configurations require the following basic setup in
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your NuttX configuration file to enable USB device support:
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USB device support is enabled by default in this configuration.
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The following settings are defined by default (and can be set
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to 'n' to disabled USB device support).
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CONFIG_USBDEV=y : Enable basic USB device support
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CONFIG_PIC32MX_USBDEV=y : Enable PIC32 USB device support
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CONFIG_USBMSC=y : USB supports a mass storage device.
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In this configuration, NSH will support the following commands:
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msconn : Connect the mass storage device, exportint the SD
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card as the USB mass storage logical unit.
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msdis : Disconnect the USB mass storage device
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NOTE: The SD card should *not* be mounted under NSH *and* exported
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by the mass storage device!!! That can result in corruption of the
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SD card format. This is the sequence of commands that you should
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used to work the the SD card safely:
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mount -t vfat /dev/mmcsd0 /mnt/sdcard : Mount the SD card initially
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...
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umount /mnt/sdcard : Unmount the SD card before connecting
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msconn : Connect the USB MSC
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...
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msdis : Disconnect the USB MSC
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mount -t vfat /dev/mmcsd0 /mnt/sdcard : Re-mount the SD card
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...
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Other USB other device configurations can be enabled and
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included as NSH built-in built in functions.
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examples/usbterm - This option can be enabled by uncommenting
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the following line in the appconfig file:
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@ -603,6 +630,7 @@ Where <subdir> is one of the following:
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And by enabling one of the USB serial devices:
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CONFIG_USBMSC=n : Disable USB mass storage device.
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CONFIG_PL2303=y : Enable the Prolifics PL2303 emulation
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CONFIG_CDCACM=y : or the CDC/ACM serial driver (not both)
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@ -613,12 +641,9 @@ Where <subdir> is one of the following:
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and defining the following in your .config file:
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CONFIG_USBMSC=n : Disable USB mass storage device.
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CONFIG_CDCACM=y : Enable the CDCACM device
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examples/usbstorage - There are some hooks in the appconfig file
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to enable the USB mass storage device. However, this device cannot
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work until support for the SD card is also incorporated.
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Networking Configurations.
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--------------------------
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Networking is enabled by default in this configuration:
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@ -714,34 +739,8 @@ Where <subdir> is one of the following:
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NOTE: This modification should be considered experimental. IN the
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little testing I have done with it, it appears functional. But the
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logic has not been stressed and there could still be lurking issues.
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Update. The following was added to the top-level TODO list:
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Title: PIC32 USB DRIVER DOES NOT WORK WITH MASS STORAGE CLASS
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Description: The PIC32 USB driver either crashes or hangs when used with
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the mass storage class when trying to write files to the target
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storage device. This usually works with debug on, but does not
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work with debug OFF (implying some race condition?)
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Here are some details of what I see in debugging:
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1. The USB MSC device completes processing of a read request
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and returns the read request to the driver.
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2. Before the MSC device can even begin the wait for the next
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driver, many packets come in at interrupt level. The MSC
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device goes to sleep (on pthread_cond_wait) with all of the
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read buffers ready (16 in my test case).
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3. The pthread_cond_wait() does not wake up. This implies
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a problem with pthread_con_wait(?). But in other cases,
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the MSC device does wake up, but then immediately crashes
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because its stack is bad.
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4. If I force the pthread_cond_wait to wake up (by using
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pthread_cond_timedwait instead), then the thread wakes
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up and crashes with a bad stack.
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So far, I have no clue why this is failing.
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Status: Open
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Priority: High
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(There is a bug associated with this configuration listed in the
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top-level TODO list).
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Adding LCD and graphics support to the nsh configuration:
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--------------------------------------------------------
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@ -33,15 +33,54 @@
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#
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############################################################################
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############################################################################
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# Path to example in apps/examples containing the user_start entry point
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############################################################################
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CONFIGURED_APPS += examples/nsh
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############################################################################
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# The NSH application library
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############################################################################
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CONFIGURED_APPS += system/readline
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CONFIGURED_APPS += nshlib
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############################################################################
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# USB device configurations
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############################################################################
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ifeq ($(CONFIG_PIC32MX_USBDEV),y)
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# USB Mass Storage Class device configurations
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ifeq ($(CONFIG_USBMSC),y)
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CONFIGURED_APPS += examples/usbstorage
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else
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# USB CDC/ACM serial device configurations
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ifeq ($(CONFIG_CDCACM),y)
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# Comment out to enable the examples/usbterm built-in
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CONFIGURED_APPS += examples/cdcacm
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# Uncomment the following to enable the examples/usbterm built-in
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# CONFIGURED_APPS += examples/usbterm
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#else
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# Prolifics PL2303 emulation configurations
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ifeq ($(CONFIG_PL2303),y)
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# Uncomment the following to enable the examples/usbterm built-in
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# CONFIGURED_APPS += examples/usbterm
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endif # CONFIG_PL2303
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endif # CONFIG_CDCACM
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endif # CONFIG_USBMSC
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endif # CONFIG_PIC32MX_USBDEV
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############################################################################
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# Networking configurations
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############################################################################
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# Networking libraries.
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# Uncomment netutils/ftpc to include an FTP client library
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# Uncomment netutils/ftpd to include an FTP server library
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@ -58,8 +97,7 @@ CONFIGURED_APPS += netutils/telnetd
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endif
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endif
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# Applications configured as an NX built-in commands
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# Networking applications configured as an NX built-in commands
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# Uncomment examples/ftpc to include the FTP client example
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# Uncomment examples/ftpd to include the FTP daemon example
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@ -68,6 +106,16 @@ ifeq ($(CONFIG_NET),y)
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#CONFIGURED_APPS += examples/ftpd
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endif
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############################################################################
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# Other Applications that can be configured as an NX built-in commands
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############################################################################
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# The I2C tool
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ifeq ($(CONFIG_I2C),y)
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CONFIGURED_APPS += system/i2c
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endif
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# Uncomment to select a graphics example
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ifeq ($(CONFIG_NX),y)
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@ -161,7 +161,7 @@ CONFIG_PIC32MX_FLASH=n
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CONFIG_PIC32MX_BMX=n
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CONFIG_PIC32MX_DMA=n
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CONFIG_PIC32MX_CHE=n
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CONFIG_PIC32MX_USBDEV=n
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CONFIG_PIC32MX_USBDEV=y
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CONFIG_PIC32MX_USBHOST=n
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CONFIG_PIC32MX_CAN1=n
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CONFIG_PIC32MX_CAN2=n
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@ -868,7 +868,7 @@ CONFIG_INPUT_STMPE811=n
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# CONFIG_USBDEV_TRACE_NRECORDS
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# Number of trace entries to remember
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#
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CONFIG_USBDEV=n
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CONFIG_USBDEV=y
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CONFIG_USBDEV_ISOCHRONOUS=n
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CONFIG_USBDEV_DUALSPEED=n
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CONFIG_USBDEV_SELFPOWERED=y
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@ -1008,7 +1008,7 @@ CONFIG_CDCACM_CONSOLE=n
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# CONFIG_USBMSC_REMOVABLE
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# Select if the media is removable
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#
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CONFIG_USBMSC=n
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CONFIG_USBMSC=y
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CONFIG_USBMSC_EP0MAXPACKET=64
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CONFIG_USBMSC_EPBULKOUT=1
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CONFIG_USBMSC_EPBULKIN=2
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@ -41,6 +41,7 @@
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/compiler.h>
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/****************************************************************************
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* Pre-Processor Definitions
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