diff --git a/Makefile b/Makefile
index 3decf4b..f71453c 100644
--- a/Makefile
+++ b/Makefile
@@ -5,14 +5,15 @@ BMP_PORT        ?= /dev/ttyBmpGdb
 
 COMFLAGS=-g -Os -pedantic -Wall
 
-LIBNAME     = opencm3_stm32f4
-FP_FLAGS   ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16
-ARCH_FLAGS  = -mthumb -mcpu=cortex-m4 $(FP_FLAGS)
-DEVDEFS     = -DSTM32F4 -DSTM32F4CCM -DSTM32F405RG -D_ROM=1008K -D_RAM=128K -D_CCM=64K -D_CCM_OFF=0x10000000 -D_ROM_OFF=0x08004000 -D_RAM_OFF=0x20000000
+#LIBNAME     = opencm3_stm32f4
+#FP_FLAGS   ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16
+#ARCH_FLAGS  = -mthumb -mcpu=cortex-m4 $(FP_FLAGS)
+#DEVDEFS     = -DSTM32F4 -DSTM32F4CCM -DSTM32F405RG -D_ROM=1008K -D_RAM=128K -D_CCM=64K -D_CCM_OFF=0x10000000 -D_ROM_OFF=0x08004000 -D_RAM_OFF=0x20000000 -DBOOTLOADER
+#LDSCRIPT = linker.ld
+DEVICE = STM32F405RG
 CFLAGS=$(COMFLAGS) $(DEVDEFS) -std=c99 -D_POSIX_C_SOURCE=200809L
 CXXFLAGS=$(COMFLAGS) -std=c++17
 
-LDSCRIPT = linker.ld
 
 OBJS = usb.o adc.o ringbuffer.o uart.o buttons.o printf.o encoder.o
 BINARY ?= main