printf输出浮点数
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printf输出浮点数

Makefile中LDFLAGS参数添加 -u _printf_float 即可 LDFLAGS = $(MCU) -u _printf_float -specs=nano.specs -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(T

Makefile中LDFLAGS参数添加 -u _printf_float 即可

LDFLAGS = $(MCU) -u _printf_float -specs=nano.specs -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref -Wl,--gc-sections
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