diff --git a/Makefile b/Makefile
index 8493333..e4cdb33 100644
--- a/Makefile
+++ b/Makefile
@@ -7,10 +7,19 @@ ENABLE_SNTP=yes
 
 # =====================================================================
 
+
+#arm-none-eabi-gcc -c -mcpu=cortex-m3 -mthumb   -DUSE_HAL_DRIVER -DSTM32F103xE 
+#-Ihottislib -Ilibmbus -IioLibrary_Driver/Ethernet -IUser/Inc -ICore/Inc 
+#-IDrivers/STM32F1xx_HAL_Driver/Inc -IDrivers/STM32F1xx_HAL_Driver/Inc/Legacy 
+#-IDrivers/CMSIS/Device/ST/STM32F1xx/Include -IDrivers/CMSIS/Include -IDrivers/CMSIS/Include 
+#-Og -Wall -fdata-sections -ffunction-sections -g -gdwarf-2 -MMD -MP -MF"build/logger.d" 
+#-Wa,-a,-ad,-alms=build/logger.lst User/Src/logger.c -o build/logger.o
+CFLAGS=-mcpu=cortex-m3 -mthumb -Og -fdata-sections -ffunction-sections -g -gdwarf-2 -MMD -MP 
+
 CC=arm-none-eabi-gcc
 AR=arm-none-eabi-ar
 
-CFLAGS=-iquote Ethernet -Wall -D_WIZCHIP_=$(WIZCHIP)
+CFLAGS+=-iquote Ethernet -Wall -D_WIZCHIP_=$(WIZCHIP)
 
 OBJDIR=build
 VPATH=Ethernet:Ethernet/W5500