diff --git a/configs/stm3240g-eval/nsh/defconfig b/configs/stm3240g-eval/nsh/defconfig
index 88b7ef48236..a9f09ce2d86 100755
--- a/configs/stm3240g-eval/nsh/defconfig
+++ b/configs/stm3240g-eval/nsh/defconfig
@@ -54,6 +54,7 @@
 # CONFIG_DRAM_END - Last address+1 of installed RAM
 # CONFIG_ARCH_IRQPRIO - The STM3240xxx supports interrupt prioritization
 # CONFIG_ARCH_FPU - The STM3240xxx supports a floating point unit (FPU)
+#   (But, unfortunately, GCC does not support it).
 # CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
 #   stack. If defined, this symbol is the size of the interrupt
 #   stack in bytes.  If not defined, the user task stacks will be
@@ -82,7 +83,7 @@ CONFIG_DRAM_SIZE=0x00030000
 CONFIG_DRAM_START=0x20000000
 CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE)
 CONFIG_ARCH_IRQPRIO=y
-CONFIG_ARCH_FPU=y
+CONFIG_ARCH_FPU=n
 CONFIG_ARCH_INTERRUPTSTACK=n
 CONFIG_ARCH_STACKDUMP=y
 CONFIG_ARCH_BOOTLOADER=n
diff --git a/configs/stm3240g-eval/ostest/defconfig b/configs/stm3240g-eval/ostest/defconfig
index 131e0253a50..4d5bc0f3da2 100755
--- a/configs/stm3240g-eval/ostest/defconfig
+++ b/configs/stm3240g-eval/ostest/defconfig
@@ -54,6 +54,7 @@
 # CONFIG_DRAM_END - Last address+1 of installed RAM
 # CONFIG_ARCH_IRQPRIO - The STM3240xxx supports interrupt prioritization
 # CONFIG_ARCH_FPU - The STM3240xxx supports a floating point unit (FPU)
+#   (But, unfortunately, GCC does not support it).
 # CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
 #   stack. If defined, this symbol is the size of the interrupt
 #   stack in bytes.  If not defined, the user task stacks will be
@@ -82,7 +83,7 @@ CONFIG_DRAM_SIZE=0x00030000
 CONFIG_DRAM_START=0x20000000
 CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE)
 CONFIG_ARCH_IRQPRIO=y
-CONFIG_ARCH_FPU=y
+CONFIG_ARCH_FPU=n
 CONFIG_ARCH_INTERRUPTSTACK=n
 CONFIG_ARCH_STACKDUMP=y
 CONFIG_ARCH_BOOTLOADER=n