1 files changed, 17 insertions, 3 deletions
diff --git a/testhal/STM32F4xx/USB_CDC/Makefile b/testhal/STM32F4xx/USB_CDC/Makefile
index 9085c6f37..0f32eeceb 100644
--- a/testhal/STM32F4xx/USB_CDC/Makefile
+++ b/testhal/STM32F4xx/USB_CDC/Makefile
@@ -41,6 +41,12 @@ endif
 # Architecture or project specific options
 #
 
+# Enables the use of FPU on Cortex-M4.
+# Enable this if you really want to use the STM FWLib.
+ifeq ($(USE_FPU),)
+  USE_FPU = no
+endif
+
 # Enable this if you really want to use the STM FWLib.
 ifeq ($(USE_FWLIB),)
   USE_FWLIB = no
@@ -58,7 +64,7 @@ endif
 PROJECT = ch
 
 # Imported source files and paths
-CHIBIOS = ../../..
+CHIBIOS = ../..
 include $(CHIBIOS)/boards/ST_STM32F4_DISCOVERY/board.mk
 include $(CHIBIOS)/os/hal/platforms/STM32F4xx/platform.mk
 include $(CHIBIOS)/os/hal/hal.mk
@@ -68,6 +74,7 @@ include $(CHIBIOS)/test/test.mk
 
 # Define linker script file here
 LDSCRIPT= $(PORTLD)/STM32F407xG.ld
+#LDSCRIPT= $(PORTLD)/STM32F407xG_CCM.ld
 
 # C sources that can be compiled in ARM or THUMB mode depending on the global
 # setting.
@@ -77,7 +84,7 @@ CSRC = $(PORTSRC) \
        $(HALSRC) \
        $(PLATFORMSRC) \
        $(BOARDSRC) \
-       $(CHIBIOS)/os/various/shell.c \
+       $(CHIBIOS)/os/various/lis302dl.c \
        $(CHIBIOS)/os/various/chprintf.c \
        main.c
 
@@ -158,7 +165,7 @@ CPPWARN = -Wall -Wextra
 #
 
 # List all default C defines here, like -D_DEBUG=1
-DDEFS = -DCORTEX_USE_FPU=0
+DDEFS =
 
 # List all default ASM defines here, like -D_DEBUG=1
 DADEFS =
@@ -199,6 +206,13 @@ ULIBS =
 # End of user defines
 ##############################################################################
 
+ifeq ($(USE_FPU),yes)
+  USE_OPT += -mfloat-abi=softfp -mfpu=fpv4-sp-d16 -fsingle-precision-constant
+  DDEFS += -DCORTEX_USE_FPU=TRUE
+else
+  DDEFS += -DCORTEX_USE_FPU=FALSE
+endif
+
 ifeq ($(USE_FWLIB),yes)
   include $(CHIBIOS)/ext/stm32lib/stm32lib.mk
   CSRC += $(STM32SRC)