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dpgeorgedpgeorge
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stmhal/Makefile: Use hardware double-prec FP for MCUs that support it.
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Lines changed: 11 additions & 1 deletion

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‎stmhal/Makefile‎

Lines changed: 11 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -48,7 +48,17 @@ INC += -I$(HAL_DIR)/inc
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INC += -I$(USBDEV_DIR)/core/inc -I$(USBDEV_DIR)/class/inc
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#INC += -I$(USBHOST_DIR)
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CFLAGS_CORTEX_M = -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=hard
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# Basic Cortex-M flags
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CFLAGS_CORTEX_M = -mthumb
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# Select hardware floating-point support
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ifeq ($(CMSIS_MCU),$(filter $(CMSIS_MCU),STM32F767xx STM32F769xx))
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CFLAGS_CORTEX_M += -mfpu=fpv5-d16 -mfloat-abi=hard
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else
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CFLAGS_CORTEX_M += -mfpu=fpv4-sp-d16 -mfloat-abi=hard
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endif
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# Options for particular MCU series
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CFLAGS_MCU_f4 = $(CFLAGS_CORTEX_M) -mtune=cortex-m4 -mcpu=cortex-m4 -DMCU_SERIES_F4
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CFLAGS_MCU_f7 = $(CFLAGS_CORTEX_M) -mtune=cortex-m7 -mcpu=cortex-m7 -DMCU_SERIES_F7
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CFLAGS_MCU_l4 = $(CFLAGS_CORTEX_M) -mtune=cortex-m4 -mcpu=cortex-m4 -DMCU_SERIES_L4

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