fix/stm32-firmware: Re-enable i2c-slave code, fix post-code display of characters, bump userapp to v1.1

Author: tuxuser

firmware/userapp/Core/Src/display.c

@@ -145,7 +145,7 @@ void Display_ShowCode(uint16_t code, uint8_t segment) {
     snprintf(lcd_buf, sizeof(lcd_buf), "%04X", code);
 
     u8g2_ClearDisplay(&myDisplay);
-    u8g2_SetFont(&myDisplay, u8g2_font_luBS14_tn);
+    u8g2_SetFont(&myDisplay, u8g2_font_luBS14_tr);
     u8g2_DrawStr(&myDisplay, 4, 32, lcd_buf);
     u8g2_SetFont(&myDisplay, u8g2_font_7x13_mr);
     u8g2_DrawStr(&myDisplay, 12, 10, seg_name);

firmware/userapp/Core/Src/main.c

@@ -70,7 +70,7 @@ __attribute__((used))
 const tombstone_t tombstone = {
     .magic = UAPP_MAGIC,
     .ver_major = 1,
-    .ver_minor = 0,
+    .ver_minor = 1,
     .size = 0x5A53, // ASCII: SZ
     .crc = 0x00435243, // ASCII: CRC + \0
     .reserved = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,0xFF, 0xFF, 0xFF, 0xFF,  0xFF, 0xFF, 0xFF, 0xFF },
@@ -110,7 +110,7 @@ int main(void)
   MX_CRC_Init();
   /* USER CODE BEGIN 2 */
   Display_Init();
-  //Slave_Init();
+  Slave_Init();
   /* USER CODE END 2 */
 
   /* Infinite loop */