nuttx/configs/mcu123-lpc214x/ostest/defconfig

############################################################################
# configs/mcu123-lpc214x/ostest/defconfig
#
#   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the
#    distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
#    used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
#
# Architecture selection
#
# CONFIG_ARCH - identifies the arch subdirectory and, hence, the
#   processor architecture.
# CONFIG_ARCH_name - for use in C code.  This identifies the
#   particular chip or SoC that the architecture is implemented
#   in.
# CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
# CONFIG_ARCH_CHIP_name - For use in C code
# CONFIG_ARCH_BOARD - identifies the configs subdirectory and, hence,
#   the board that supports the particular chip or SoC.
# CONFIG_ENDIAN_BIG - define if big endian (default is little endian)
# CONFIG_ARCH_BOARD_name - for use in C code
# CONFIG_BOARD_LOOPSPERMSEC - for delay loops
# CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to lpc2148.
# CONFIG_DRAM_SIZE - Describes the internal DRAM.
# CONFIG_DRAM_START - The start address of internal DRAM
# CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
#
CONFIG_ARCH=arm
CONFIG_ARCH_CHIP=lpc214x
CONFIG_ARCH_LPC2148=y
CONFIG_ARCH_BOARD=mcu123-lpc214x
CONFIG_ARCH_BOARD_MCU123=y
CONFIG_BOARD_LOOPSPERMSEC=4327
CONFIG_ARCH_LEDS=y
CONFIG_DRAM_SIZE=0x00008000
CONFIG_DRAM_START=0x40000000
CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE)
CONFIG_ARCH_STACKDUMP=y

#
# LPC2148 specific chip initialization
#
CONFIG_EXTMEM_MODE=n
CONFIG_RAM_MODE=n
CONFIG_CODE_BASE=0x00000000
CONFIG_PLL_SETUP=y
CONFIG_MAM_SETUP=y
CONFIG_VPBDIV_SETUP=y
CONFIG_EMC_SETUP=n
CONFIG_BCFG0_SETUP=n
CONFIG_BCFG1_SETUP=n
CONFIG_BCFG2_SETUP=n
CONFIG_BCFG3_SETUP=n
CONFIG_ADC_SETUP=y

#
# LPC214X specific device driver settings
#
# CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the
#   console and ttys0 (default is the UART0).
# CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received.
#   This specific the size of the receive buffer
# CONFIG_UARTn_TXBUFSIZE - Characters are buffered before
#   being sent.  This specific the size of the transmit buffer
# CONFIG_UARTn_BAUD - The configure BAUD of the UART.  Must be
# CONFIG_UARTn_BITS - The number of bits.  Must be either 7 or 8.
# CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity, 3=mark 1, 4=space 0
# CONFIG_UARTn_2STOP - Two stop bits
#
CONFIG_UART0_SERIAL_CONSOLE=y
CONFIG_UART1_SERIAL_CONSOLE=n
CONFIG_UART0_TXBUFSIZE=256
CONFIG_UART1_TXBUFSIZE=256
CONFIG_UART0_RXBUFSIZE=256
CONFIG_UART1_RXBUFSIZE=256
CONFIG_UART0_BAUD=38400
CONFIG_UART1_BAUD=38400
CONFIG_UART0_BITS=8
CONFIG_UART1_BITS=8
CONFIG_UART0_PARITY=0
CONFIG_UART1_PARITY=0
CONFIG_UART0_2STOP=0
CONFIG_UART1_2STOP=0

#
# General build options
#
# CONFIG_RRLOAD_BINARY - make the rrload binary format used with
#   BSPs from www.ridgerun.com using the tools/mkimage.sh script
# CONFIG_INTELHEX_BINARY - make the Intel HEX binary format
#   used with many different loaders using the GNU objcopy program
#   Should not be selected if you are not using the GNU toolchain.
# CONFIG_RAW_BINARY - make a raw binary format file used with many
#   different loaders using the GNU objcopy program.  This option
#   should not be selected if you are not using the GNU toolchain.
# CONFIG_HAVE_LIBM - toolchain supports libm.a
#
CONFIG_RRLOAD_BINARY=n
CONFIG_INTELHEX_BINARY=n
CONFIG_RAW_BINARY=y
CONFIG_HAVE_LIBM=n

#
# General OS setup
#
# CONFIG_EXAMPLE - identifies the subdirectory in examples
#   that will be used in the build
# CONFIG_DEBUG - enables built-in debug options
# CONFIG_DEBUG_VERBOSE - enables verbose debug output
# CONFIG_MM_REGIONS - If the architecture includes multiple
#   regions of memory to allocate from, this specifies the
#   number of memory regions that the memory manager must
#   handle and enables the API mm_addregion(start, end);
# CONFIG_ARCH_LOWPUTC - architecture supports low-level, boot
#   time console output
# CONFIG_TICKS_PER_MSEC - The default system timer is 100Hz
#   or TICKS_PER_MSEC=10.  This setting may be defined to
#   inform NuttX that the processor hardware is providing
#   system timer interrupts at some interrupt interval other
#   than 10 msec.
# CONFIG_RR_INTERVAL - The round robin timeslice will be set
#   this number of milliseconds;  Round robin scheduling can
#   be disabled by setting this value to zero.
# CONFIG_SCHED_INSTRUMENTATION - enables instrumentation in 
#   scheduler to monitor system performance
# CONFIG_TASK_NAME_SIZE - Spcifies that maximum size of a
#   task name to save in the TCB.  Useful if scheduler
#   instrumentation is selected.  Set to zero to disable.
# CONFIG_START_YEAR, CONFIG_START_MONTH, CONFIG_START_DAY -
#   Used to initialize the internal time logic.
# CONFIG_JULIAN_TIME - Enables Julian time conversions
# CONFIG_DEV_CONSOLE - Set if architecture-specific logic
#   provides /dev/console.  Enables stdout, stderr, stdin.
# CONFIG_DEV_LOWCONSOLE - Use the simple, low-level serial console
#   driver (minimul support)
#
CONFIG_EXAMPLE=ostest
CONFIG_DEBUG=n
CONFIG_DEBUG_VERBOSE=n
CONFIG_MM_REGIONS=1
CONFIG_ARCH_LOWPUTC=y
CONFIG_RR_INTERVAL=0
CONFIG_SCHED_INSTRUMENTATION=n
CONFIG_TASK_NAME_SIZE=0
CONFIG_START_YEAR=2008
CONFIG_START_MONTH=9
CONFIG_START_DAY=17
CONFIG_JULIAN_TIME=n
CONFIG_DEV_CONSOLE=y
CONFIG_DEV_LOWCONSOLE=y

#
# The following can be used to disable categories of
# APIs supported by the OS.  If the compiler supports
# weak functions, then it should not be necessary to
# disable functions unless you want to restrict usage
# of those APIs.
#
# There are certain dependency relationships in these
# features.
#
# o mq_notify logic depends on signals to awaken tasks
#   waiting for queues to become full or empty.
# o pthread_condtimedwait() depends on signals to wake
#   up waiting tasks.
#
CONFIG_DISABLE_CLOCK=n
CONFIG_DISABLE_POSIX_TIMERS=n
CONFIG_DISABLE_PTHREAD=n
CONFIG_DISABLE_SIGNALS=n
CONFIG_DISABLE_MQUEUE=n
CONFIG_DISABLE_MOUNTPOINT=y
CONFIG_DISABLE_ENVIRON=y

#
# Misc libc settings
#
# CONFIG_NOPRINTF_FIELDWIDTH - sprintf-related logic is a
#   little smaller if we do not support fieldwidthes
#
CONFIG_NOPRINTF_FIELDWIDTH=n

#
# Allow for architecture optimized implementations
#
# The architecture can provide optimized versions of the
# following to improve sysem performance
#
CONFIG_ARCH_MEMCPY=n
CONFIG_ARCH_MEMCMP=n
CONFIG_ARCH_MEMMOVE=n
CONFIG_ARCH_MEMSET=n
CONFIG_ARCH_STRCMP=n
CONFIG_ARCH_STRCPY=n
CONFIG_ARCH_STRNCPY=n
CONFIG_ARCH_STRLEN=n
CONFIG_ARCH_BZERO=n
CONFIG_ARCH_KMALLOC=n
CONFIG_ARCH_KZMALLOC=n
CONFIG_ARCH_KFREE=n

#
# Sizes of configurable things (0 disables)
#
# CONFIG_MAX_TASKS - The maximum number of simultaneously
#   active tasks.  This value must be a power of two.
# CONFIG_MAX_TASK_ARGS - This controls the maximum number of
#   of parameters that a task may receive (i.e., maxmum value
#   of 'argc')
# CONFIG_NPTHREAD_KEYS - The number of items of thread-
#   specific data that can be retained
# CONFIG_NFILE_DESCRIPTORS - The maximum number of file
#   descriptors (one for each open)
# CONFIG_NFILE_STREAMS - The maximum number of streams that
#   can be fopen'ed
# CONFIG_NAME_MAX - The maximum size of a file name.
# CONFIG_STDIO_BUFFER_SIZE - Size of the buffer to allocate
#   on fopen. (Only if CONFIG_NFILE_STREAMS > 0)
# CONFIG_NUNGET_CHARS - Number of characters that can be
#   buffered by ungetc() (Only if CONFIG_NFILE_STREAMS > 0)
# CONFIG_PREALLOC_MQ_MSGS - The number of pre-allocated message
#   structures.  The system manages a pool of preallocated
#   message structures to minimize dynamic allocations
# CONFIG_MQ_MAXMSGSIZE - Message structures are allocated with
#   a fixed payload size given by this settin (does not include
#   other message structure overhead.
# CONFIG_MAX_WDOGPARMS - Maximum number of parameters that
#   can be passed to a watchdog handler
# CONFIG_PREALLOC_WDOGS - The number of pre-allocated watchdog
#   structures.  The system manages a pool of preallocated
#   watchdog structures to minimize dynamic allocations
# CONFIG_PREALLOC_TIMERS - The number of pre-allocated POSIX
#   timer structures.  The system manages a pool of preallocated
#   timer structures to minimize dynamic allocations.  Set to
#   zero for all dynamic allocations.
#
CONFIG_MAX_TASKS=16
CONFIG_MAX_TASK_ARGS=4
CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
CONFIG_STDIO_BUFFER_SIZE=256
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
CONFIG_MAX_WDOGPARMS=2
CONFIG_PREALLOC_WDOGS=4
CONFIG_PREALLOC_TIMERS=4

#
# TCP/IP and UDP support via uIP
# CONFIG_NET - Enable or disable all network features
# CONFIG_NET_IPv6 - Build in support for IPv6
# CONFIG_NSOCKET_DESCRIPTORS - Maximum number of socket descriptors per task/thread.
# CONFIG_NET_SOCKOPTS - Enable or disable support for socket options
# CONFIG_NET_BUFSIZE - uIP buffer size
# CONFIG_NET_TCP - TCP support on or off
# CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks)
# CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers
# CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero)
# CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks)
# CONFIG_NET_UDP - UDP support on or off
# CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off
# CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP connections
# CONFIG_NET_ICMP - ICMP ping response support on or off
# CONFIG_NET_ICMP_PING - ICMP ping request support on or off
# CONFIG_NET_PINGADDRCONF - Use "ping" packet for setting IP address
# CONFIG_NET_STATISTICS - uIP statistics on or off
# CONFIG_NET_RECEIVE_WINDOW - The size of the advertised receiver's window
# CONFIG_NET_ARPTAB_SIZE - The size of the ARP table
# CONFIG_NET_BROADCAST - Broadcast support
# CONFIG_NET_LLH_LEN - The link level header length
# CONFIG_NET_FWCACHE_SIZE - number of packets to remember when looking for duplicates
CONFIG_NET=n
CONFIG_NET_IPv6=n
CONFIG_NSOCKET_DESCRIPTORS=0
CONFIG_NET_SOCKOPTS=y
CONFIG_NET_BUFSIZE=420
CONFIG_NET_TCP=n
CONFIG_NET_TCP_CONNS=40
CONFIG_NET_MAX_LISTENPORTS=40
CONFIG_NET_UDP=n
CONFIG_NET_UDP_CHECKSUMS=y
#CONFIG_NET_UDP_CONNS=10
CONFIG_NET_ICMP=n
CONFIG_NET_ICMP_PING=n
#CONFIG_NET_PINGADDRCONF=0
CONFIG_NET_STATISTICS=y
#CONFIG_NET_RECEIVE_WINDOW=
#CONFIG_NET_ARPTAB_SIZE=8
CONFIG_NET_BROADCAST=n
#CONFIG_NET_LLH_LEN=14
#CONFIG_NET_FWCACHE_SIZE=2

#
# UIP Network Utilities
# CONFIG_NET_DHCP_LIGHT - Reduces size of DHCP
# CONFIG_NET_RESOLV_ENTRIES - Number of resolver entries
CONFIG_NET_DHCP_LIGHT=n
CONFIG_NET_RESOLV_ENTRIES=4

#
# USB Device Configuration
#
# CONFIG_USBDEV
#   Enables USB device support
# CONFIG_USBDEV_ISOCHRONOUS
#   Build in extra support for isochronous endpoints
# CONFIG_USBDEV_DUALSPEED
#   Hardware handles high and full speed operation (USB 2.0)
# CONFIG_USBDEV_SELFPOWERED
#   Will cause USB features to indicate that the device is
#   self-powered
# CONFIG_USBDEV_MAXPOWER
#   Maximum power consumption in mA
# CONFIG_USBDEV_TRACE
#   Enables USB tracing for debug
# CONFIG_USBDEV_TRACE_NRECORDS
#   Number of trace entries to remember
CONFIG_USBDEV=n
CONFIG_USBDEV_ISOCHRONOUS=n
CONFIG_USBDEV_DUALSPEED=n
CONFIG_USBDEV_SELFPOWERED=y
CONFIG_USBDEV_MAXPOWER=100
CONFIG_USBDEV_TRACE=n
CONFIG_USBDEV_TRACE_NRECORDS=128

#
# LPC214X USB Configuration
#
# CONFIG_LPC214X_USBDEV_FRAME_INTERRUPT
#   Handle USB Start-Of-Frame events. 
#   Enable reading SOF from interrupt handler vs. simply reading on demand.
#   Probably a bad idea... Unless there is some issue with sampling the SOF
#   from hardware asynchronously.
# CONFIG_LPC214X_USBDEV_EPFAST_INTERRUPT
#   Enable high priority interrupts.  I have no idea why you might want to
#   do that
# CONFIG_LPC214X_USBDEV_NDMADESCRIPTORS
#   Number of DMA descriptors to allocate in the 8Kb USB RAM.  This is a
#   tradeoff between the number of DMA channels that can be supported vs
#   the size of the DMA buffers available.
# CONFIG_LPC214X_USBDEV_DMA
#   Enable lpc214x-specific DMA support
CONFIG_LPC214X_USBDEV_FRAME_INTERRUPT=n
CONFIG_LPC214X_USBDEV_EPFAST_INTERRUPT=n
CONFIG_LPC214X_USBDEV_DMA=n
CONFIG_LPC214X_USBDEV_NDMADESCRIPTORS=0
CONFIG_LPC214X_USBDEV_DMAINTMASK=0

#
# USB Serial Device Configuration
#
# CONFIG_USBSERIAL_EPOUT
# CONFIG_USBSERIAL_EPIN
# CONFIG_USBSERIAL_NWRREQS
#   The number of write requests that can be in flight
# CONFIG_USBSERIAL_NRDREQS
#   The number of read requests that can be in flight
# CONFIG_USBSERIAL_RXBUFSIZE
#   Size of the serial receive buffer
# CONFIG_USBSERIAL_TXBUFSIZE
#   Size of the serial transmit buffer
# CONFIG_USBSER_VENDORID
#   The vendor ID code
# CONFIG_USBSER_PRODUCTID
#   The product ID code
CONFIG_USBSERIAL_EPOUT=1
CONFIG_USBSERIAL_EPIN=2
CONFIG_USBSERIAL_NWRREQS=4
CONFIG_USBSERIAL_NRDREQS=4
CONFIG_USBSER_VENDORID=0x0525
CONFIG_USBSER_PRODUCTID=0xa4a6
CONFIG_USBSERIAL_RXBUFSIZE=512
CONFIG_USBSERIAL_TXBUFSIZE=512

#
# USB Device Zero Configuration
# CONFIG_USBSER_VENDORID
#   The vendor ID code
# CONFIG_USBSER_PRODUCTID
#   The product ID code
CONFIG_USBZERO_VENDORID=0x0525
CONFIG_USBZERO_PRODUCTID=0xa4a0

#
# Settings for examples/ostest
CONFIG_EXAMPLES_OSTEST_LOOPS=1
CONFIG_EXAMPLES_OSTEST_STACKSIZE=4096
CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3

#
# Settings for examples/nsh
#
# CONFIG_EXAMPLES_NSH_FILEIOSIZE - Size of a static I/O buffer
# CONFIG_EXAMPLES_NSH_STRERROR - Use strerror(errno)
# CONFIG_EXAMPLES_NSH_LINELEN - Maximum length of one command line
# CONFIG_EXAMPLES_NSH_STACKSIZE - Stack size to use for new threads.
# CONFIG_EXAMPLES_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
# CONFIG_EXAMPLES_NSH_DISABLESCRIPT - Disable scripting support
# CONFIG_EXAMPLES_NSH_DISABLEBG - Disable background commands
# CONFIG_EXAMPLES_NSH_ROMFSETC - Use startup script in /etc
# CONFIG_EXAMPLES_NSH_CONSOLE - Use serial console front end
# CONFIG_EXAMPLES_NSH_TELNET - Use telnetd console front end
#
# If CONFIG_EXAMPLES_NSH_TELNET is selected:
# CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE -- Telnetd I/O buffer size
# CONFIG_EXAMPLES_NSH_DHCPC - Obtain address using DHCP
# CONFIG_EXAMPLES_NSH_IPADDR - Provides static IP address
# CONFIG_EXAMPLES_NSH_DRIPADDR - Provides static router IP address
# CONFIG_EXAMPLES_NSH_NETMASK - Provides static network mask
# CONFIG_EXAMPLES_NSH_NOMAC - Use a bogus MAC address
#
# If CONFIG_EXAMPLES_NSH_ROMFSETC is selected:
# CONFIG_EXAMPLES_NSH_ROMFSMOUNTPT - ROMFS mountpoint
# CONFIG_EXAMPLES_NSH_INITSCRIPT - Relative path to init script
# CONFIG_EXAMPLES_NSH_ROMFSDEVNO - ROMFS RAM device minor
# CONFIG_EXAMPLES_NSH_ROMFSSECTSIZE - ROMF sector size
# CONFIG_EXAMPLES_NSH_FATDEVNO - FAT FS RAM device minor
# CONFIG_EXAMPLES_NSH_FATSECTSIZE - FAT FS sector size
# CONFIG_EXAMPLES_NSH_FATNSECTORS - FAT FS number of sectors
# CONFIG_EXAMPLES_NSH_FATMOUNTPT - FAT FS mountpoint
CONFIG_EXAMPLES_NSH_FILEIOSIZE=512
CONFIG_EXAMPLES_NSH_STRERROR=n
CONFIG_EXAMPLES_NSH_LINELEN=64
CONFIG_EXAMPLES_NSH_STACKSIZE=2048
CONFIG_EXAMPLES_NSH_NESTDEPTH=3
CONFIG_EXAMPLES_NSH_DISABLESCRIPT=n
CONFIG_EXAMPLES_NSH_DISABLEBG=n
CONFIG_EXAMPLES_NSH_ROMFSETC=n
CONFIG_EXAMPLES_NSH_CONSOLE=y
CONFIG_EXAMPLES_NSH_TELNET=n
CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE=512
CONFIG_EXAMPLES_NSH_DHCPC=n
CONFIG_EXAMPLES_NSH_NOMAC=n
CONFIG_EXAMPLES_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
CONFIG_EXAMPLES_NSH_DRIPADDR=(10<<24|0<<16|0<<8|1)
CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
CONFIG_EXAMPLES_NSH_ROMFSMOUNTPT="/etc"
CONFIG_EXAMPLES_NSH_INITSCRIPT="init.d/rcS"
CONFIG_EXAMPLES_NSH_ROMFSDEVNO=0
CONFIG_EXAMPLES_NSH_ROMFSSECTSIZE=64
CONFIG_EXAMPLES_NSH_FATDEVNO=1
CONFIG_EXAMPLES_NSH_FATSECTSIZE=512
CONFIG_EXAMPLES_NSH_FATNSECTORS=1024
CONFIG_EXAMPLES_NSH_FATMOUNTPT=/tmp

#
# Stack and heap information
#
# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
#   operation from FLASH.
# CONFIG_CUSTOM_STACK - The up_ implementation will handle
#   all stack operations outside of the nuttx model.
# CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
# CONFIG_PROC_STACK_SIZE - The size of the initial stack
# CONFIG_PTHREAD_STACK_MIN - Minimum pthread stack size
# CONFIG_PTHREAD_STACK_DEFAULT - Default pthread stack size
# CONFIG_HEAP_BASE - The beginning of the heap
# CONFIG_HEAP_SIZE - The size of the heap
#
CONFIG_BOOT_FROM_FLASH=y
CONFIG_CUSTOM_STACK=n
CONFIG_STACK_POINTER=
CONFIG_PROC_STACK_SIZE=2048
CONFIG_PTHREAD_STACK_MIN=256
CONFIG_PTHREAD_STACK_DEFAULT=2048
CONFIG_HEAP_BASE=
CONFIG_HEAP_SIZE=