Use target flash/bch_% instead of passing an environment variable

Makefile

-.PHONY: flash/ids_%
+.PHONY: flash/ids_% flash/bch_%
 
 #### Setup ####
 XMC       = $(shell pwd)/XMC
@@ -16,33 +16,16 @@ LIBS      = $(CMSIS)/Lib/GCC/libarm_cortexM4lf_math.a
 LINKER_FILE = $(CMSIS)/Infineon/$(UC)_series/Source/GCC/XMC4500x1024.ld
 CMSIS_SRC += $(CMSIS)/Infineon/$(UC)_series/Source/System_$(UC).c
 
-define JLINK_FLASH_COMMANDS
-connect
-loadbin bin/xmc.bin 0x8000000
-r
-g
-exit
-endef
-export JLINK_FLASH_COMMANDS
-
 JLINK = JLinkExe
 SYSCC = $(TOOLCHAIN)-gcc
 CC    = patmos-clang
 CP    = $(TOOLCHAIN)-objcopy
 OD    = $(TOOLCHAIN)-objdump
 GDB   = $(TOOLCHAIN)-gdb
-SIZE  = $(TOOLCHAIN)-size
 
 STACK_SIZE?=2048
 
-JLINKSER?=0
-JLINKSERSTR=
-
-ifneq ($(JLINKSER),0)
-	JLINKSERSTR=-SelectEmuBySN ${JLINKSER}
-endif
-
-JLFLAGS = -device XMC4500-1024 -if SWD -speed 900 ${JLINKSERSTR}
+JLFLAGS = -device XMC4500-1024 -if SWD -speed 900
 
 CFLAGS = -target armv6m--none-eabi -mcpu=cortex-m4 -mthumb -integrated-as -ccc-gcc-name arm-none-eabi-gcc
 # CFLAGS = -g
@@ -50,9 +33,6 @@ CFLAGS = -target armv6m--none-eabi -mcpu=cortex-m4 -mthumb -integrated-as -ccc-g
 CFLAGS+= -O0 -ffunction-sections -fdata-sections
 CFLAGS+= -MD -std=c99 -Wall -fms-extensions
 CFLAGS+= -DUC_ID=$(UC_ID) -DARM_MATH_CM4 -DINTERRUPT_CONTROL_ENDPOINT
-ifneq ($(JLINKSER),0)
-	CFLAGS+= -DSERIAL=${JLINKSER}
-endif
 CFLAGS+= -fmessage-length=0 
 CFLAGS+= -DXMC4500_F100x1024
 CFLAGS+= -I$(CMSIS)/Include -I$(CMSIS)/Infineon/$(UC)_series/Include
@@ -82,7 +62,7 @@ OBJS += src/System_$(UC).o
 OBJS_MAIN = $(OBJS) $(SRC_MAIN:.c=.o)
 
 #### Rules ####
-all: $(OBJS) xmc xmccomm
+all: $(OBJS) bin/xmc.bin xmccomm
 
 src/System_$(UC).o: $(CMSIS_SRC)
 	$(CC) -c $(CFLAGS) $< -o $@
@@ -117,19 +97,18 @@ flash/ids_%: bin/ids_%.bin
 	g\n\
 	exit\n" | $(JLINK) $(JLFLAGS) -SelectEmuBySN $*
 
-xmc.axf: $(OBJS_MAIN) bin/startup_XMC4500.o gene.o
+flash/bch_%: bin/xmc.bin
+	echo "connect\n\
+	loadbin bin/xmc.bin 0x8000000\n\
+	r\n\
+	g\n\
+	exit\n" | $(JLINK) $(JLFLAGS) -SelectEmuBySN $*
+
+bin/xmc.axf: $(OBJS_MAIN) bin/startup_XMC4500.o gene.o
 	mkdir -p bin
 	@echo LD $<
 	@$(CC) -T $(LINKER_FILE) $(LFLAGS) -o bin/xmc.axf $^ $(LIBS)
 
-xmc: xmc.axf
-	$(CP) $(CPFLAGS) bin/xmc.axf bin/xmc.bin
-	$(OD) $(ODFLAGS) bin/xmc.axf > bin/xmc.lst
-	$(SIZE) bin/xmc.axf
-
-flash: xmc
-	echo "$$JLINK_FLASH_COMMANDS" | $(JLINK) $(JLFLAGS)
-
 gdbsrv:
 	JLinkGDBServer -device XMC4500-1024 -if SWD -speed 300
 
@@ -142,7 +121,7 @@ fastgdb:
 	make gdb
 
 xmccomm: xmccomm.c
-	gcc -g xmccomm.c -o xmccomm
+	gcc -std=c99 -g xmccomm.c -o xmccomm
 
 clean:
 	rm -f src/*.o src/*.d bin/*