added build number tagging

.travis.yml

@@ -12,4 +12,4 @@ before_script:
   - echo $PATH
   - @echo 'Installed gcc-arm-none-eabi.'
 
-script: make
+script: make BUILD_NUMBER=%{build_number}

Makefile

@@ -8,6 +8,7 @@
 # user configuration:
 #######################################
 
+BUILD_NUMBER ?= 0
 
 # SOURCES: list of sources in the user application
 SOURCES = main.c usbd_conf.c usbd_cdc_if.c usb_device.c usbd_desc.c stm32f0xx_hal_msp.c stm32f0xx_it.c system_stm32f0xx.c can.c slcan.c
@@ -23,6 +24,7 @@ LD_SCRIPT = STM32F042C6_FLASH.ld
 
 # USER_DEFS user defined macros
 USER_DEFS = -D HSI48_VALUE=48000000 -D HSE_VALUE=16000000
+USER_DEFS += -D CANTACT_BUILD_NUMBER=$(BUILD_NUMBER)
 # USER_INCLUDES: user defined includes
 USER_INCLUDES =
 

Src/usbd_desc.c

@@ -56,7 +56,15 @@
 /** @defgroup USBD_DESC_Private_Defines
   * @{
   */
-#define CANTACT_SW_VER			"v0.1"
+#define STRINGIZE_(x) #x
+#define STRINGIZE(x) STRINGIZE_(x)
+
+#if CANTACT_BUILD_NUMBER == 0
+    #define CANTACT_SW_VER		"dev"
+#else
+    #define CANTACT_SW_VER		"b" STRINGIZE(CANTACT_BUILD_NUMBER)
+#endif
+
 #define USBD_VID			0xad50
 #define USBD_LANGID_STRING		1033
 #define USBD_MANUFACTURER_STRING	"CANtact"