Clicker2-STM32: Enable RAMLOG in mrf24j40-6lowpan configuration. Update README.

configs/clicker2-stm32/README.txt

@@ -352,13 +352,31 @@ Configurations
 
          CONFIG_NSH_ARCHINIT=y
 
+    8. Configuration instructions:  WPAN configuration must be performed
+       using the i8sak program.  Detailed instructions are provided in a
+       README.txt file at apps/wireless/ieee802154/i8sak.  You should make
+       sure that you are familiar with the content of that README.txt file.
+
+       Here is a quick "cheat sheet" for associated to setting up a
+       coordinator and associating wth the WPAN:
+
+       1. Configure the Coordinator.  On coordinator device do:
+
+          nsh> i8 /dev/ieee0 startpan
+          nsh> i8 acceptassoc
+
+       2. Assocate and endpoint device with the WPAN.  On the endpoint
+          device:
+
+          nsh> i8 /dev/ieee0 assoc
+
   mrf24j40-6lowpan
 
     This is another version of nsh that is very similar to the mrf24j40-mac
-    configuration but is focused on testing the IEEE 802.15.4 MAC integration
+    configuration but is focused on testing the IEEE 802.15.4 MAC
-    with the 6loWPAN network stack.  I derives directly from the mrf24j40-mac
+    integration with the 6loWPAN network stack.  It derives directly from the
-    and all NOTES provided there apply.  Additional differences are summarized
+    mrf24j40-mac and all NOTES provided there apply.  Additional differences
-    below:
+    are summarized below:
 
     NOTES:
 
@@ -371,15 +389,33 @@ Configurations
 
        Other NOTES for the usbnsh configuration should appy.
 
-    2. This configuration does have USART3 output enabled and set up as
+    2. This configuration does NOT have USART3 output enabled.  This
-       the system logging device:
+       configuration supports logging of debug output to a circular
+       buffer in RAM.  This feature is discussed fully in this Wiki page:  http://nuttx.org/doku.php?id=wiki:howtos:syslog . Relevant
+       configuration settings are summarized below:
 
-       CONFIG_SYSLOG_CHAR=y               : Use a character device for system logging
+       Device Drivers:
-       CONFIG_SYSLOG_DEVPATH="/dev/ttyS0" : USART3 will be /dev/ttyS0
+       CONFIG_RAMLOG=y             : Enable the RAM-based logging feature.
+       CONFIG_RAMLOG_CONSOLE=n     : (We don't use the RAMLOG console)
+       CONFIG_RAMLOG_SYSLOG=y      : This enables the RAM-based logger as the
+                                     system logger.
+       CONFIG_RAMLOG_NONBLOCKING=y : Needs to be non-blocking for dmesg
+       CONFIG_RAMLOG_BUFSIZE=8192  : Buffer size is 8KiB
 
-       However, there is nothing to generate SYLOG output in the default
+       NOTE: This RAMLOG feature is really only of value if debug output
-       configuration so nothing should appear on USART3 unless you enable
+       is enabled.  But, by default, no debug output is disabled in this
-       some debug output or enable the USB monitor.
+       configuration.  Therefore, there is no logic that will add anything
+       to the RAM buffer.  This feature is configured and in place only
+       to support any future debugging needs that you may have.
+
+       If you don't plan on using the debug features, then by all means
+       disable this feature and save 16KiB of RAM!
+
+       NOTE: There is an issue with capturing data in the RAMLOG:  If
+       the system crashes, all of the crash dump information will go into
+       the RAMLOG and you will be unable to access it!  You can tell that
+       the system has crashed because (a) it will be unresponsive and (b)
+       the LD2 will be blinking at about 2Hz.
 
   nsh:
 

configs/clicker2-stm32/mrf24j40-6lowpan/defconfig

@@ -151,7 +151,6 @@ CONFIG_ARMV7M_TOOLCHAIN_GNU_EABIL=y
 CONFIG_ARMV7M_HAVE_STACKCHECK=y
 # CONFIG_ARMV7M_STACKCHECK is not set
 # CONFIG_ARMV7M_ITMSYSLOG is not set
-# CONFIG_SERIAL_TERMIOS is not set
 
 #
 # STM32 Configuration Options
@@ -450,7 +449,7 @@ CONFIG_STM32_SYSCFG=y
 # CONFIG_STM32_TIM14 is not set
 # CONFIG_STM32_USART1 is not set
 # CONFIG_STM32_USART2 is not set
-CONFIG_STM32_USART3=y
+# CONFIG_STM32_USART3 is not set
 # CONFIG_STM32_UART4 is not set
 # CONFIG_STM32_UART5 is not set
 # CONFIG_STM32_USART6 is not set
@@ -490,27 +489,6 @@ CONFIG_STM32_CCMEXCLUDE=y
 # CONFIG_STM32_TIM12_CAP is not set
 # CONFIG_STM32_TIM13_CAP is not set
 # CONFIG_STM32_TIM14_CAP is not set
-CONFIG_STM32_USART=y
-CONFIG_STM32_SERIALDRIVER=y
-
-#
-# U[S]ART Configuration
-#
-
-#
-# U[S]ART Device Configuration
-#
-CONFIG_STM32_USART3_SERIALDRIVER=y
-# CONFIG_STM32_USART3_1WIREDRIVER is not set
-# CONFIG_USART3_RS485 is not set
-
-#
-# Serial Driver Configuration
-#
-# CONFIG_SERIAL_DISABLE_REORDERING is not set
-# CONFIG_STM32_FLOWCONTROL_BROKEN is not set
-# CONFIG_STM32_USART_BREAKS is not set
-# CONFIG_STM32_USART_SINGLEWIRE is not set
 
 #
 # SPI Configuration
@@ -845,35 +823,19 @@ CONFIG_SERIAL_REMOVABLE=y
 # CONFIG_USART0_SERIALDRIVER is not set
 # CONFIG_USART1_SERIALDRIVER is not set
 # CONFIG_USART2_SERIALDRIVER is not set
-CONFIG_USART3_SERIALDRIVER=y
+# CONFIG_USART3_SERIALDRIVER is not set
 # CONFIG_USART4_SERIALDRIVER is not set
 # CONFIG_USART5_SERIALDRIVER is not set
 # CONFIG_USART6_SERIALDRIVER is not set
 # CONFIG_USART7_SERIALDRIVER is not set
 # CONFIG_USART8_SERIALDRIVER is not set
 # CONFIG_OTHER_UART_SERIALDRIVER is not set
-CONFIG_MCU_SERIAL=y
+# CONFIG_MCU_SERIAL is not set
 CONFIG_STANDARD_SERIAL=y
 # CONFIG_SERIAL_IFLOWCONTROL is not set
 # CONFIG_SERIAL_OFLOWCONTROL is not set
 # CONFIG_SERIAL_DMA is not set
-CONFIG_ARCH_HAVE_SERIAL_TERMIOS=y
+# CONFIG_ARCH_HAVE_SERIAL_TERMIOS is not set
-# CONFIG_USART3_SERIAL_CONSOLE is not set
-# CONFIG_OTHER_SERIAL_CONSOLE is not set
-CONFIG_NO_SERIAL_CONSOLE=y
-
-#
-# USART3 Configuration
-#
-CONFIG_USART3_RXBUFSIZE=256
-CONFIG_USART3_TXBUFSIZE=256
-CONFIG_USART3_BAUD=115200
-CONFIG_USART3_BITS=8
-CONFIG_USART3_PARITY=0
-CONFIG_USART3_2STOP=0
-# CONFIG_USART3_IFLOWCONTROL is not set
-# CONFIG_USART3_OFLOWCONTROL is not set
-# CONFIG_USART3_DMA is not set
 # CONFIG_PSEUDOTERM is not set
 CONFIG_USBDEV=y
 
@@ -933,18 +895,18 @@ CONFIG_IEEE802154_MRF24J40=y
 # System Logging
 #
 # CONFIG_ARCH_SYSLOG is not set
-CONFIG_SYSLOG_WRITE=y
+# CONFIG_SYSLOG_WRITE is not set
-# CONFIG_RAMLOG is not set
+CONFIG_RAMLOG=y
-# CONFIG_SYSLOG_BUFFER is not set
+CONFIG_RAMLOG_BUFSIZE=8192
-CONFIG_SYSLOG_INTBUFFER=y
+# CONFIG_RAMLOG_CRLF is not set
-CONFIG_SYSLOG_INTBUFSIZE=396
+CONFIG_RAMLOG_NONBLOCKING=y
+# CONFIG_SYSLOG_INTBUFFER is not set
 # CONFIG_SYSLOG_TIMESTAMP is not set
 # CONFIG_SYSLOG_SERIAL_CONSOLE is not set
-CONFIG_SYSLOG_CHAR=y
+# CONFIG_SYSLOG_CHAR is not set
+CONFIG_RAMLOG_SYSLOG=y
 # CONFIG_SYSLOG_NONE is not set
 # CONFIG_SYSLOG_FILE is not set
-CONFIG_SYSLOG_CHAR_CRLF=y
-CONFIG_SYSLOG_DEVPATH="/dev/ttyS0"
 # CONFIG_SYSLOG_CHARDEV is not set
 
 #

configs/sama5d4-ek/README.txt

@@ -4259,8 +4259,6 @@ Configurations
        http://nuttx.org/doku.php?id=wiki:howtos:syslog . Relevant
        configuration settings are summarized below:
 
-       File System:
-
        Device Drivers:
        CONFIG_RAMLOG=y             : Enable the RAM-based logging feature.
        CONFIG_RAMLOG_CONSOLE=n     : (We don't use the RAMLOG console)