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| author | Damien George <damien.p.george@gmail.com> | 2017-06-23 16:47:36 +1000 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2017-06-28 15:12:05 +1000 |
| commit | 535804a0ed18c1842e3a01f1f5cf995ae4afe513 (patch) | |
| tree | b60ba0a33514829b1b61e2458e5b1637a4457bf4 | |
| parent | d20f8fb893467b64fed7230ee885821c2befc20a (diff) | |
| download | micropython-535804a0ed18c1842e3a01f1f5cf995ae4afe513.tar.gz micropython-535804a0ed18c1842e3a01f1f5cf995ae4afe513.zip | |
stmhal/Makefile: Use hardware double-prec FP for MCUs that support it.
| -rw-r--r-- | stmhal/Makefile | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/stmhal/Makefile b/stmhal/Makefile index ec41f30dbc..b7226c463b 100644 --- a/stmhal/Makefile +++ b/stmhal/Makefile @@ -48,7 +48,17 @@ INC += -I$(HAL_DIR)/inc INC += -I$(USBDEV_DIR)/core/inc -I$(USBDEV_DIR)/class/inc #INC += -I$(USBHOST_DIR) -CFLAGS_CORTEX_M = -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=hard +# Basic Cortex-M flags +CFLAGS_CORTEX_M = -mthumb + +# Select hardware floating-point support +ifeq ($(CMSIS_MCU),$(filter $(CMSIS_MCU),STM32F767xx STM32F769xx)) +CFLAGS_CORTEX_M += -mfpu=fpv5-d16 -mfloat-abi=hard +else +CFLAGS_CORTEX_M += -mfpu=fpv4-sp-d16 -mfloat-abi=hard +endif + +# Options for particular MCU series CFLAGS_MCU_f4 = $(CFLAGS_CORTEX_M) -mtune=cortex-m4 -mcpu=cortex-m4 -DMCU_SERIES_F4 CFLAGS_MCU_f7 = $(CFLAGS_CORTEX_M) -mtune=cortex-m7 -mcpu=cortex-m7 -DMCU_SERIES_F7 CFLAGS_MCU_l4 = $(CFLAGS_CORTEX_M) -mtune=cortex-m4 -mcpu=cortex-m4 -DMCU_SERIES_L4 |