add version menu

examples/device/hid_cdc_passkey/src/main.c

@@ -17,8 +17,6 @@
 
 // get the length of an array
 #define LENGTH(x) (sizeof(x) / sizeof((x)[0]))
-// print debug messages
-#define DEBUG (true)
 
 #define BUTTON1_PORT           GPIOA
 #define BUTTON1_PIN            GPIO_PIN_5
@@ -68,6 +66,7 @@ static uint8_t pass_paste = 0; // how much of the username is pasted
 static const char* help_str[] = {
   "\r\npress key to enter menu\r\n",
   "h help\r\n",
+  "v show version\r\n",
   "c enter credentials (ACSII only)\r\n",
   "b swap buttons\r\n",
   "g set global timeout\r\n",
@@ -282,7 +281,7 @@ int main(void)
 
   printf("\r\npasskey\r\n");
   printf("hardware version: 2\r\n"); // for now we just have version 2
-	printf("firmware date: %04u-%02u-%02u\r\n", BUILD_YEAR, BUILD_MONTH, BUILD_DAY); // show firmware build date
+  printf("firmware date: %04u-%02u-%02u\r\n", BUILD_YEAR, BUILD_MONTH, BUILD_DAY); // show firmware build date
   load_config();
 
   FLASH_OBProgramInitTypeDef ob;
@@ -431,7 +430,11 @@ void cdc_task(void)
               i = 0; // reset index
               menu = MENU_LAYOUT;
               break;
-            // hidden menu
+            case 'v': // version
+              snprintf(tmp, sizeof(tmp), "\r\nfirmware build date: %04u-%02u-%02u\r\n", BUILD_YEAR, BUILD_MONTH, BUILD_DAY); // show firmware build date
+              str = tmp;
+              break;
+            // unlocked device menu
             case 'K': // set manufacturer key
               if (!locked()) {
                 i = 0; // reset index