librambutan/support/make, branch master

stm32f4: 32bit-float-friendly GCC flags

2015-03-03T08:15:30+00:00

This commit makes 'float' (32-bit) the default for floating point constants in the source code, instead of the defaults 'double' (64-bit). Floating point performance is very sensitive to the float vs. double distinction on 32-bit processors, especially Cortex-M4s with a VFP unit for floats but not doubles. In the future it may be wise to make this change for non-hard-fp chips (aka, all the other STM32s) as well, for behavioral consistancy. The warning flag ensures that the frequently used parts of the code base will be less ambiguous, but doesn't cover series-specific code.

stm32f4: series-specific linker flags

2015-03-03T08:14:43+00:00

Also refactors STM32F2-F4 linker files into sub-series directories.

board support: stm32f401c_discovery -> st_stm32f401cdiscovery

2015-03-02T05:42:26+00:00

stm32f401c_discovery.mk: fix typo and use short MCU name convention

2015-03-01T22:51:12+00:00

stm32f4: add support for stm32f401CDiscovery board

2015-03-01T22:50:20+00:00

Add support for stm32f401CDiscovery board running an STM32F401VGT6

board support: opencm904 -> robotis_opencm904

2015-03-01T07:47:30+00:00

board support: cm900 -> robotis_cm900

2015-03-01T07:45:52+00:00

board support: nucleo -> st_nucleo_f103rb

2015-03-01T07:41:35+00:00

Also correct attribution in Wirish board.h

board support: rename VLDiscovery -> st_stm32vldiscovery

2015-03-01T07:37:24+00:00

Adding support for NUCLEO-F103RB

2015-03-01T07:14:52+00:00

Signed-off-by: Grégoire Passault