Add USBSERIAL=YES to avoid the need for editing projectconfig.h

also make "make APP=<foo>" build <foo>.bin so you don't overwrite your
firmware.bin :)

firmware/Makefile

@@ -33,6 +33,10 @@ INCLUDE_PATHS = -I$(ROOT_PATH) -I$(ROOT_PATH)/core
 
 include $(ROOT_PATH)/Makefile.inc
 
+ifdef APP
+OUTFILE=$(APP)
+endif
+
 LDFLAGS+= -Wl,--gc-sections
 OBJS += lpc1xxx/$(TARGET)_handlers.o lpc1xxx/LPC1xxx_startup.o
 

firmware/Makefile.inc

@@ -45,6 +45,9 @@ CPU_TYPE = cortex-$(CORTEX_TYPE)
 CFLAGS  = -std=c99 -c -g -Os $(INCLUDE_PATHS) -Wall -mthumb -ffunction-sections -fdata-sections -fmessage-length=0 -mcpu=$(CPU_TYPE) -DTARGET=$(TARGET) -DRAMCODE=$(RAMCODE) -fno-builtin -Wno-unused-function
 LDFLAGS = -nostartfiles
 
+ifeq "$(USBSERIAL)" "YES"
+CFLAGS += -DUSBSERIAL
+endif
 
 CONFIG_MAKE_PRINTDIRECTORY = --no-print-directory 
 CONFIG_GCC_SHOWCOLUMN = 

firmware/core/projectconfig.h

@@ -1,3 +1,6 @@
+#ifndef __PROJECTCONFIG_H_
+#define __PROJECTCONFIG_H_
+
 #include "lpc134x.h"
 #include "sysdefs.h"
 
@@ -88,3 +91,12 @@
 #define CFG_UART_BAUDRATE           (115200)
 #define CFG_UART_BUFSIZE            (512)
 #endif
+
+#ifdef USBSERIAL
+#undef CFG_USBCDC
+#undef CFG_USBMSC
+#define CFG_USBCDC                 (1)
+#define CFG_USBMSC                 (0)
+#endif
+
+#endif