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Update README

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This commit is contained in:
Gregory Nutt 2017-04-19 11:19:40 -06:00
parent 575fb0acbf
commit d3e1ea84f6
1 changed files with 47 additions and 10 deletions
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57
configs/nucleo-f072rb/README.txt
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@ -267,18 +267,55 @@ Configurations
NOTES: NOTES:
1. Support for NSH built-in applications is provided: 1. This initial release of this configuration was very minimal, but
also very small:
Binary Formats: $ size nuttx
CONFIG_BUILTIN=y : Enable support for built-in programs text data bss dec hex filename
32000 92 1172 33264 81f0 nuttx
Application Configuration: The current version, additional features have been enabled: board
CONFIG_NSH_BUILTIN_APPS=y : Enable starting apps from NSH command line bring-up initialization, button support, the procfs file system,
and NSH built-in application support. The size increased as follows:
No built applications are enabled in the base configuration, however. $ size nuttx
text data bss dec hex filename
40231 92 1208 41531 a23b nuttx
2. C++ support for applications is enabled: Those additional features cost about 8KiB FLASH. I believe that is a
good use of the STM32F072RB's FLASH, but if you interested in the
more minimal configuration, here is what was changed:
CONFIG_HAVE_CXX=y Removed
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y CONFIG_BINFMT_DISABLE=y
CONFIG_DISABLE_MOUNTPOINT=y
CONFIG_NSH_DISABLE_CD=y
Added:
CONFIG_ARCH_BUTTONS=y
CONFIG_ARCH_IRQBUTTONS=y
CONFIG_BUILTIN=y
CONFIG_BUILTIN_PROXY_STACKSIZE=1024
CONFIG_FS_PROCFS=y
CONFIG_NSH_PROC_MOUNTPOINT="/proc"
CONFIG_LIB_BOARDCTL=y
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
Support for NSH built-in applications is enabled for future use.
However, no built applications are enabled in this base configuration.
2. C++ support for applications is NOT enabled. That could be enabled
with the following configuration changes:
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
And also support fo C++ constructors under
apps/platform/nucleo-stm32f072rb.