Fix STM32F1 and F3 USB device driver. It was not handling NULL packets correctly and it prevent use of the driver with the CDC/ACM class
This commit is contained in:
Gregory Nutt
parent
680e570cc4
commit
aa9589ac8f
@ -4828,3 +4828,10 @@
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support from Laurent Latil (2013-5-28)
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* configs/stm32_tiny: Add support for the STM32 Tiny development board
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based on th STM32 F103C8T6 MCU (2013-5-28).
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* arch/arm/src/stm32/stm32_usbdev.c: Fix an error in NULL packet
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handling: If the NULL-packet needed flag ever gets set, then
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it is not cleared and inifinite NULL packets result. This only
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effects the CDC/ACM class and was the cause of the failure of
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configs/stm32f3discovery/usbnsh configureation which works great
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after this change (2013-5-29).
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19
TODO
19
TODO
@ -1,4 +1,4 @@
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NuttX TODO List (Last updated April 10, 2013)
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NuttX TODO List (Last updated May 29, 2013)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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This file summarizes known NuttX bugs, limitations, inconsistencies with
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@ -32,7 +32,7 @@ nuttx/
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(0) ARM/LPC43x (arch/arm/src/lpc43xx/)
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(3) ARM/STR71x (arch/arm/src/str71x/)
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(3) ARM/LM3S6918 (arch/arm/src/lm/)
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(6) ARM/STM32 (arch/arm/src/stm32/)
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(5) ARM/STM32 (arch/arm/src/stm32/)
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(3) AVR (arch/avr)
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(0) Intel x86 (arch/x86)
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(5) 8051 / MCS51 (arch/8051/)
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@ -1608,21 +1608,6 @@ o ARM/STM32 (arch/arm/src/stm32/)
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Status: Open
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Priority: Low
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Title: USB DRIVER IN STM32F3DISCVORY usbnsh CONFIGURATION
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Description: The USB device driver is not reliable in the
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configs/stm32f3discovery/upnsh configuration. When a large
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volume of serial data is sent (for example, by entering
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'help' from the NSH command line), the driver hangs. This
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looks like an improperly handled output data overrun problem.
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This is a surprising since this same driver has worked with
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the STM32 F1 for some time using the Mass Storage driver
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which has considerably higher data rates. So this seems to
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be some particular issue with the way that the CDC/ACM driver
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sends data through the driver.
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Status: Open
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Priority: Medium High
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o AVR (arch/avr)
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^^^^^^^^^^^^^^
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@ -1253,7 +1253,16 @@ static int stm32_wrrequest(struct stm32_usbdev_s *priv, struct stm32_ep_s *prive
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#warning "REVISIT: If the EP supports double buffering, then we can do better"
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/* Send the next packet */
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/* Either (1) we are committed to sending the null packet (because txnullpkt == 1
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* && nbytes == 0), or (2) we have not yet send the last packet (nbytes > 0).
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* In either case, it is appropriate to clearn txnullpkt now.
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*/
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privep->txnullpkt = 0;
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/* If we are not sending a NULL packet, then clip the size to maxpacket
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* and check if we need to send a following NULL packet.
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*/
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if (nbytes > 0)
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{
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@ -1261,7 +1270,6 @@ static int stm32_wrrequest(struct stm32_usbdev_s *priv, struct stm32_ep_s *prive
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* the request.
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*/
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privep->txnullpkt = 0;
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if (nbytes >= privep->ep.maxpacket)
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{
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nbytes = privep->ep.maxpacket;
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@ -323,7 +323,7 @@ the following settings in the include/board.h file:
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This can be found on the board at:
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TX, PA2, Connector P1, pin 14
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RX, PA3, Connector P1, pin 9
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RX, PA3, Connector P1, pin 11
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FPU
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===
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@ -726,7 +726,7 @@ Where <subdir> is one of the following:
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nsh:
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---
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Configures the NuttShell (nsh) located at apps/examples/nsh. The
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Configuration enables the serial interfaces on UART2. Support for
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Configuration enables the serial interfaces on USART2. Support for
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builtin applications is enabled, but in the base configuration no
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builtin applications are selected (see NOTES below).
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@ -824,41 +824,59 @@ Where <subdir> is one of the following:
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for Windows and builds under Cygwin (or probably MSYS). That
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can easily be reconfigured, of course.
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CONFIG_HOST_WINDOWS=y : Builds under Windows
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CONFIG_WINDOWS_CYGWIN=y : Using Cygwin
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CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
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Build Setup:
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CONFIG_HOST_WINDOWS=y : Builds under Windows
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CONFIG_WINDOWS_CYGWIN=y : Using Cygwin
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3. This configuration does have UART2 output enabled and set up as
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System Type:
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CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
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3. This configuration does have USART2 output enabled and set up as
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the system logging device:
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CONFIG_SYSLOG=y : Enable output to syslog, not console
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CONFIG_SYSLOG_CHAR=y : Use a character device for system logging
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CONFIG_SYSLOG_DEVPATH="/dev/ttyS0" : UART2 will be /dev/ttyS0
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Device Drivers -> System Logging Device Options:
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CONFIG_SYSLOG=y : Enable output to syslog, not console
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CONFIG_SYSLOG_CHAR=y : Use a character device for system logging
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CONFIG_SYSLOG_DEVPATH="/dev/ttyS0" : USART2 will be /dev/ttyS0
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However, there is nothing to generate SYLOG output in the default
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configuration so nothing should appear on UART2 unless you enable
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configuration so nothing should appear on USART2 unless you enable
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some debug output or enable the USB monitor.
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NOTE: Using the SYSLOG to get debug output has limitations. Among
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those are that you cannot get debug output from interrupt handlers.
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So, in particularly, debug output is not a useful way to debug the
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USB device controller driver. Instead, use the USB monitor with
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USB debug off and USB trance on (see below).
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4. Enabling USB monitor SYSLOG output. If tracing is enabled, the USB
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device will save encoded trace output in in-memory buffer; if the
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USB monitor is enabled, that trace buffer will be periodically
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emptied and dumped to the system loggin device (UART2 in this
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emptied and dumped to the system loggin device (USART2 in this
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configuraion):
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CONFIG_USBDEV_TRACE=y : Enable USB trace feature
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CONFIG_USBDEV_TRACE_NRECORDS=128 : Buffer 128 records in memory
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CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH
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CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor
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CONFIG_SYSTEM_USBMONITOR=y : Enable the USB monitor daemon
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CONFIG_SYSTEM_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size
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CONFIG_SYSTEM_USBMONITOR_PRIORITY=50 : USB monitor daemon priority
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CONFIG_SYSTEM_USBMONITOR_INTERVAL=2 : Dump trace data every 2 seconds
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Device Drivers -> "USB Device Driver Support:
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CONFIG_USBDEV_TRACE=y : Enable USB trace feature
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CONFIG_USBDEV_TRACE_NRECORDS=256 : Buffer 128 records in memory
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CONFIG_SYSTEM_USBMONITOR_TRACEINIT=y : Enable TRACE output
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CONFIG_SYSTEM_USBMONITOR_TRACECLASS=y
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CONFIG_SYSTEM_USBMONITOR_TRACETRANSFERS=y
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CONFIG_SYSTEM_USBMONITOR_TRACECONTROLLER=y
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CONFIG_SYSTEM_USBMONITOR_TRACEINTERRUPTS=y
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Application Configuration -> NSH LIbrary:
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CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH
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CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor
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Application Configuration -> System NSH Add-Ons:
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CONFIG_SYSTEM_USBMONITOR=y : Enable the USB monitor daemon
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CONFIG_SYSTEM_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size
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CONFIG_SYSTEM_USBMONITOR_PRIORITY=50 : USB monitor daemon priority
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CONFIG_SYSTEM_USBMONITOR_INTERVAL=1 : Dump trace data every second
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CONFIG_SYSTEM_USBMONITOR_TRACEINIT=y : Enable TRACE output
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CONFIG_SYSTEM_USBMONITOR_TRACECLASS=y
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CONFIG_SYSTEM_USBMONITOR_TRACETRANSFERS=y
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CONFIG_SYSTEM_USBMONITOR_TRACECONTROLLER=y
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CONFIG_SYSTEM_USBMONITOR_TRACEINTERRUPTS=y
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NOTE: USB debug output also be enabled in this case. Both will appear
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on the serial SYSLOG output. However, the debug output will be
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asynchronous with the trace output and, hence, difficult to interpret.
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5. The STM32F3Discovery board does not provide circuitry for control of
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the "soft connect" USB pullup. As a result, the host PC does not know
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@ -868,15 +886,13 @@ Where <subdir> is one of the following:
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1) Start NSH with USB disconnected, then
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2) Connect the USB device to the host.
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5. By default, this project assumes that you are *NOT* using the DFU
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bootloader.
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6. Using the Prolifics PL2303 Emulation
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Using the Prolifics PL2303 Emulation
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------------------------------------
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You could also use the non-standard PL2303 serial device instead of
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the standard CDC/ACM serial device by changing:
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You could also use the non-standard PL2303 serial device instead of
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the standard CDC/ACM serial device by changing:
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CONFIG_CDCACM=y : Disable the CDC/ACM serial device class
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CONFIG_CDCACM_CONSOLE=y : The CDC/ACM serial device is NOT the console
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CONFIG_PL2303=y : The Prolifics PL2303 emulation is enabled
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CONFIG_PL2303_CONSOLE=y : The PL2303 serial device is the console
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Drivers->USB Device Driver Support
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CONFIG_CDCACM=y : Disable the CDC/ACM serial device class
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CONFIG_CDCACM_CONSOLE=y : The CDC/ACM serial device is NOT the console
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CONFIG_PL2303=y : The Prolifics PL2303 emulation is enabled
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CONFIG_PL2303_CONSOLE=y : The PL2303 serial device is the console
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@ -69,12 +69,14 @@ CONFIG_ARCH="arm"
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# CONFIG_ARCH_CHIP_DM320 is not set
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# CONFIG_ARCH_CHIP_IMX is not set
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# CONFIG_ARCH_CHIP_KINETIS is not set
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# CONFIG_ARCH_CHIP_KL is not set
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# CONFIG_ARCH_CHIP_LM is not set
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# CONFIG_ARCH_CHIP_LPC17XX is not set
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# CONFIG_ARCH_CHIP_LPC214X is not set
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# CONFIG_ARCH_CHIP_LPC2378 is not set
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# CONFIG_ARCH_CHIP_LPC31XX is not set
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# CONFIG_ARCH_CHIP_LPC43XX is not set
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# CONFIG_ARCH_CHIP_NUC1XX is not set
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# CONFIG_ARCH_CHIP_SAM3U is not set
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CONFIG_ARCH_CHIP_STM32=y
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# CONFIG_ARCH_CHIP_STR71X is not set
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@ -87,8 +89,6 @@ CONFIG_ARCH_HAVE_CMNVECTOR=y
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# CONFIG_ARCH_FPU is not set
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CONFIG_ARCH_HAVE_MPU=y
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# CONFIG_ARMV7M_MPU is not set
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CONFIG_BOARD_LOOPSPERMSEC=6522
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# CONFIG_ARCH_CALIBRATION is not set
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#
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# ARMV7M Configuration Options
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@ -105,6 +105,24 @@ CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y
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#
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# STM32 Configuration Options
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#
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# CONFIG_ARCH_CHIP_STM32L151C6 is not set
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# CONFIG_ARCH_CHIP_STM32L151C8 is not set
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# CONFIG_ARCH_CHIP_STM32L151CB is not set
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# CONFIG_ARCH_CHIP_STM32L151R6 is not set
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# CONFIG_ARCH_CHIP_STM32L151R8 is not set
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# CONFIG_ARCH_CHIP_STM32L151RB is not set
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# CONFIG_ARCH_CHIP_STM32L151V6 is not set
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# CONFIG_ARCH_CHIP_STM32L151V8 is not set
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# CONFIG_ARCH_CHIP_STM32L151VB is not set
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# CONFIG_ARCH_CHIP_STM32L152C6 is not set
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# CONFIG_ARCH_CHIP_STM32L152C8 is not set
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# CONFIG_ARCH_CHIP_STM32L152CB is not set
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# CONFIG_ARCH_CHIP_STM32L152R6 is not set
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# CONFIG_ARCH_CHIP_STM32L152R8 is not set
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# CONFIG_ARCH_CHIP_STM32L152RB is not set
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# CONFIG_ARCH_CHIP_STM32L152V6 is not set
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# CONFIG_ARCH_CHIP_STM32L152V8 is not set
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# CONFIG_ARCH_CHIP_STM32L152VB is not set
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# CONFIG_ARCH_CHIP_STM32F100C8 is not set
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# CONFIG_ARCH_CHIP_STM32F100CB is not set
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# CONFIG_ARCH_CHIP_STM32F100R8 is not set
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@ -117,6 +135,8 @@ CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y
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# CONFIG_ARCH_CHIP_STM32F100VC is not set
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# CONFIG_ARCH_CHIP_STM32F100VD is not set
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# CONFIG_ARCH_CHIP_STM32F100VE is not set
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# CONFIG_ARCH_CHIP_STM32F103C4 is not set
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# CONFIG_ARCH_CHIP_STM32F103C8 is not set
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# CONFIG_ARCH_CHIP_STM32F103RET6 is not set
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# CONFIG_ARCH_CHIP_STM32F103VCT6 is not set
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# CONFIG_ARCH_CHIP_STM32F103VET6 is not set
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@ -145,7 +165,21 @@ CONFIG_ARCH_CHIP_STM32F303VC=y
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# CONFIG_ARCH_CHIP_STM32F407ZG is not set
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# CONFIG_ARCH_CHIP_STM32F407IE is not set
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# CONFIG_ARCH_CHIP_STM32F407IG is not set
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# CONFIG_ARCH_CHIP_STM32F427V is not set
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# CONFIG_ARCH_CHIP_STM32F427Z is not set
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# CONFIG_ARCH_CHIP_STM32F427I is not set
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# CONFIG_STM32_STM32L15XX is not set
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# CONFIG_STM32_ENERGYLITE is not set
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# CONFIG_STM32_STM32F10XX is not set
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# CONFIG_STM32_VALUELINE is not set
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# CONFIG_STM32_CONNECTIVITYLINE is not set
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# CONFIG_STM32_PERFORMANCELINE is not set
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# CONFIG_STM32_HIGHDENSITY is not set
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# CONFIG_STM32_MEDIUMDENSITY is not set
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# CONFIG_STM32_LOWDENSITY is not set
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# CONFIG_STM32_STM32F20XX is not set
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CONFIG_STM32_STM32F30XX=y
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# CONFIG_STM32_STM32F40XX is not set
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# CONFIG_STM32_DFU is not set
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#
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@ -163,11 +197,9 @@ CONFIG_STM32_STM32F30XX=y
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# CONFIG_STM32_DAC2 is not set
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# CONFIG_STM32_I2C1 is not set
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# CONFIG_STM32_I2C2 is not set
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# CONFIG_STM32_IWDG is not set
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CONFIG_STM32_PWR=y
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# CONFIG_STM32_SDIO is not set
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CONFIG_STM32_SPI1=y
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# CONFIG_STM32_SPI2 is not set
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CONFIG_STM32_SYSCFG=y
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# CONFIG_STM32_TIM1 is not set
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# CONFIG_STM32_TIM2 is not set
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@ -183,6 +215,7 @@ CONFIG_STM32_SYSCFG=y
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# CONFIG_STM32_USART1 is not set
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CONFIG_STM32_USART2=y
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CONFIG_STM32_USB=y
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# CONFIG_STM32_IWDG is not set
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# CONFIG_STM32_WWDG is not set
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CONFIG_STM32_SPI=y
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@ -193,6 +226,7 @@ CONFIG_STM32_SPI=y
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# CONFIG_STM32_JTAG_FULL_ENABLE is not set
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# CONFIG_STM32_JTAG_NOJNTRST_ENABLE is not set
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CONFIG_STM32_JTAG_SW_ENABLE=y
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# CONFIG_STM32_DISABLE_IDLE_SLEEP_DURING_DEBUG is not set
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# CONFIG_STM32_FORCEPOWER is not set
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# CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG is not set
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CONFIG_STM32_USART=y
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@ -235,10 +269,14 @@ CONFIG_ARCH_HAVE_VFORK=y
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CONFIG_ARCH_STACKDUMP=y
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# CONFIG_ENDIAN_BIG is not set
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# CONFIG_ARCH_HAVE_RAMFUNCS is not set
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CONFIG_ARCH_HAVE_RAMVECTORS=y
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# CONFIG_ARCH_RAMVECTORS is not set
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#
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# Board Settings
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#
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CONFIG_BOARD_LOOPSPERMSEC=6522
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# CONFIG_ARCH_CALIBRATION is not set
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CONFIG_DRAM_START=0x20000000
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CONFIG_DRAM_SIZE=40960
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CONFIG_ARCH_HAVE_INTERRUPTSTACK=y
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@ -278,6 +316,7 @@ CONFIG_NSH_MMCSDMINOR=0
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#
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# RTOS Features
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#
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# CONFIG_BOARD_INITIALIZE is not set
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CONFIG_MSEC_PER_TICK=10
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CONFIG_RR_INTERVAL=200
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# CONFIG_SCHED_INSTRUMENTATION is not set
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@ -293,7 +332,6 @@ CONFIG_START_DAY=27
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# CONFIG_FDCLONE_DISABLE is not set
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# CONFIG_FDCLONE_STDIO is not set
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CONFIG_SDCLONE_DISABLE=y
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# CONFIG_SCHED_WORKQUEUE is not set
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CONFIG_SCHED_WAITPID=y
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# CONFIG_SCHED_STARTHOOK is not set
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# CONFIG_SCHED_ATEXIT is not set
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@ -357,6 +395,7 @@ CONFIG_SPI_EXCHANGE=y
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# CONFIG_RTC is not set
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# CONFIG_WATCHDOG is not set
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# CONFIG_ANALOG is not set
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# CONFIG_AUDIO_DEVICES is not set
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# CONFIG_BCH is not set
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# CONFIG_INPUT is not set
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# CONFIG_LCD is not set
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@ -366,7 +405,6 @@ CONFIG_SPI_EXCHANGE=y
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# CONFIG_PM is not set
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# CONFIG_POWER is not set
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# CONFIG_SENSORS is not set
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# CONFIG_SERCOMM_CONSOLE is not set
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CONFIG_SERIAL=y
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# CONFIG_DEV_LOWCONSOLE is not set
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CONFIG_SERIAL_REMOVABLE=y
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@ -389,14 +427,19 @@ CONFIG_USART2_2STOP=0
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CONFIG_USBDEV=y
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#
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# Device Controller Driver Options
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# USB Device Controller Driver Options
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#
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# CONFIG_USBDEV_ISOCHRONOUS is not set
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# CONFIG_USBDEV_DUALSPEED is not set
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CONFIG_USBDEV_SELFPOWERED=y
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# CONFIG_USBDEV_BUSPOWERED is not set
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CONFIG_USBDEV_MAXPOWER=100
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# CONFIG_USBDEV_DMA is not set
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# CONFIG_USBDEV_TRACE is not set
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#
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# USB Device Class Driver Options
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#
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# CONFIG_USBDEV_COMPOSITE is not set
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# CONFIG_PL2303 is not set
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CONFIG_CDCACM=y
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@ -449,6 +492,7 @@ CONFIG_CDCACM_PRODUCTSTR="CDC/ACM Serial"
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# CONFIG_FS_FAT is not set
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# CONFIG_FS_NXFFS is not set
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# CONFIG_FS_ROMFS is not set
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# CONFIG_FS_SMARTFS is not set
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# CONFIG_FS_BINFS is not set
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#
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@ -467,10 +511,16 @@ CONFIG_SYSLOG_DEVPATH="/dev/ttyS0"
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#
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# Memory Management
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#
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# CONFIG_MM_MULTIHEAP is not set
|
||||
# CONFIG_MM_SMALL is not set
|
||||
CONFIG_MM_REGIONS=2
|
||||
# CONFIG_GRAN is not set
|
||||
|
||||
#
|
||||
# Audio Support
|
||||
#
|
||||
# CONFIG_AUDIO is not set
|
||||
|
||||
#
|
||||
# Binary Formats
|
||||
#
|
||||
@ -496,6 +546,7 @@ CONFIG_LIB_HOMEDIR="/"
|
||||
# CONFIG_LIBM is not set
|
||||
# CONFIG_NOPRINTF_FIELDWIDTH is not set
|
||||
# CONFIG_LIBC_FLOATINGPOINT is not set
|
||||
CONFIG_LIB_RAND_ORDER=1
|
||||
# CONFIG_EOL_IS_CR is not set
|
||||
# CONFIG_EOL_IS_LF is not set
|
||||
# CONFIG_EOL_IS_BOTH_CRLF is not set
|
||||
@ -511,9 +562,11 @@ CONFIG_LIB_SENDFILE_BUFSIZE=512
|
||||
# CONFIG_ARCH_OPTIMIZED_FUNCTIONS is not set
|
||||
|
||||
#
|
||||
# Non-standard Helper Functions
|
||||
# Non-standard Library Support
|
||||
#
|
||||
# CONFIG_SCHED_WORKQUEUE is not set
|
||||
# CONFIG_LIB_KBDCODEC is not set
|
||||
# CONFIG_LIB_SLCDCODEC is not set
|
||||
|
||||
#
|
||||
# Basic CXX Support
|
||||
@ -557,8 +610,8 @@ CONFIG_BUILTIN_PROXY_STACKSIZE=1024
|
||||
# CONFIG_EXAMPLES_IGMP is not set
|
||||
# CONFIG_EXAMPLES_LCDRW is not set
|
||||
# CONFIG_EXAMPLES_MM is not set
|
||||
# CONFIG_EXAMPLES_MOUNT is not set
|
||||
# CONFIG_EXAMPLES_MODBUS is not set
|
||||
# CONFIG_EXAMPLES_MOUNT is not set
|
||||
CONFIG_EXAMPLES_NSH=y
|
||||
# CONFIG_EXAMPLES_NULL is not set
|
||||
# CONFIG_EXAMPLES_NX is not set
|
||||
@ -578,6 +631,10 @@ CONFIG_EXAMPLES_NSH=y
|
||||
# CONFIG_EXAMPLES_ROMFS is not set
|
||||
# CONFIG_EXAMPLES_SENDMAIL is not set
|
||||
# CONFIG_EXAMPLES_SERLOOP is not set
|
||||
# CONFIG_EXAMPLES_SLCD is not set
|
||||
# CONFIG_EXAMPLES_SMART_TEST is not set
|
||||
# CONFIG_EXAMPLES_SMART is not set
|
||||
# CONFIG_EXAMPLES_TCPECHO is not set
|
||||
# CONFIG_EXAMPLES_TELNETD is not set
|
||||
# CONFIG_EXAMPLES_THTTPD is not set
|
||||
# CONFIG_EXAMPLES_TIFF is not set
|
||||
@ -590,8 +647,9 @@ CONFIG_EXAMPLES_NSH=y
|
||||
# CONFIG_EXAMPLES_WATCHDOG is not set
|
||||
|
||||
#
|
||||
# Interpreters
|
||||
# Graphics Support
|
||||
#
|
||||
# CONFIG_TIFF is not set
|
||||
|
||||
#
|
||||
# Interpreters
|
||||
@ -621,11 +679,7 @@ CONFIG_EXAMPLES_NSH=y
|
||||
# CONFIG_NETUTILS_WEBCLIENT is not set
|
||||
|
||||
#
|
||||
# ModBus
|
||||
#
|
||||
|
||||
#
|
||||
# FreeModbus
|
||||
# FreeModBus
|
||||
#
|
||||
# CONFIG_MODBUS is not set
|
||||
|
||||
@ -677,6 +731,11 @@ CONFIG_NSH_BUILTIN_APPS=y
|
||||
# CONFIG_NSH_DISABLE_USLEEP is not set
|
||||
# CONFIG_NSH_DISABLE_WGET is not set
|
||||
# CONFIG_NSH_DISABLE_XD is not set
|
||||
|
||||
#
|
||||
# Configure Command Options
|
||||
#
|
||||
# CONFIG_NSH_CMDOPT_DF_H is not set
|
||||
CONFIG_NSH_CODECS_BUFSIZE=128
|
||||
CONFIG_NSH_FILEIOSIZE=512
|
||||
CONFIG_NSH_LINELEN=64
|
||||
@ -714,6 +773,10 @@ CONFIG_NSH_ARCHINIT=y
|
||||
#
|
||||
# CONFIG_SYSTEM_INSTALL is not set
|
||||
|
||||
#
|
||||
# FLASH Erase-all Command
|
||||
#
|
||||
|
||||
#
|
||||
# readline()
|
||||
#
|
||||
|
||||
@ -1641,6 +1641,12 @@ Where <subdir> is one of the following:
|
||||
configuration so nothing should appear on UART2 unless you enable
|
||||
some debug output or enable the USB monitor.
|
||||
|
||||
NOTE: Using the SYSLOG to get debug output has limitations. Among
|
||||
those are that you cannot get debug output from interrupt handlers.
|
||||
So, in particularly, debug output is not a useful way to debug the
|
||||
USB device controller driver. Instead, use the USB monitor with
|
||||
USB debug off and USB trance on (see below).
|
||||
|
||||
4. Enabling USB monitor SYSLOG output. If tracing is enabled, the USB
|
||||
device will save encoded trace output in in-memory buffer; if the
|
||||
USB monitor is enabled, that trace buffer will be periodically
|
||||
|
||||
@ -853,10 +853,11 @@ Where <subdir> is one of the following:
|
||||
You could also use the non-standard PL2303 serial device instead of
|
||||
the standard CDC/ACM serial device by changing:
|
||||
|
||||
CONFIG_CDCACM=n : Disable the CDC/ACM serial device class
|
||||
CONFIG_CDCACM_CONSOLE=n : The CDC/ACM serial device is NOT the console
|
||||
CONFIG_PL2303=y : The Prolifics PL2303 emulation is enabled
|
||||
CONFIG_PL2303_CONSOLE=y : The PL2303 serial device is the console
|
||||
Drivers->USB Device Driver Support
|
||||
CONFIG_CDCACM=n : Disable the CDC/ACM serial device class
|
||||
CONFIG_CDCACM_CONSOLE=n : The CDC/ACM serial device is NOT the console
|
||||
CONFIG_PL2303=y : The Prolifics PL2303 emulation is enabled
|
||||
CONFIG_PL2303_CONSOLE=y : The PL2303 serial device is the console
|
||||
|
||||
Why would you want to use a non-standard USB serial driver? You might
|
||||
to use the PL2303 driver with a Windows host because it should
|
||||
@ -864,9 +865,9 @@ Where <subdir> is one of the following:
|
||||
some effort to get Windows to recognize the CDC/ACM device).
|
||||
|
||||
4. Since this configuration is current set for the "DB_DP11215 PIC32
|
||||
Storage Demo Board," USART2 is available and is configured to used as
|
||||
Storage Demo Board," UART2 is available and is configured to used as
|
||||
the SYSLOG device. That means that all debug output will be directed
|
||||
out USART2. Debug output is not enabled by default, however, so these
|
||||
out UART2. Debug output is not enabled by default, however, so these
|
||||
settings do nothing until you enable debug ouput.
|
||||
|
||||
Device Drivers -> System Logging Device Options:
|
||||
@ -916,7 +917,9 @@ Where <subdir> is one of the following:
|
||||
CONFIG_SYSTEM_USBMONITOR_TRACECONTROLLER=y
|
||||
CONFIG_SYSTEM_USBMONITOR_TRACEINTERRUPTS=y
|
||||
|
||||
NOTE: USB debug output should not be enabled in this case.
|
||||
NOTE: USB debug output also be enabled in this case. Both will appear
|
||||
on the serial SYSLOG output. However, the debug output will be
|
||||
asynchronous with the trace output and, hence, difficult to interpret.
|
||||
|
||||
6. If you want to try this configuration on the DB-DP11212 PIC32 General
|
||||
Purpose Demo Board", here are the changes that you should make:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user