Implement DevicePropertyId_Uptime

right/src/usb_commands/usb_command_get_device_property.c

@@ -7,6 +7,7 @@
 #include "i2c.h"
 #include "init_peripherals.h"
 #include "fsl_i2c.h"
+#include "timer.h"
 
 version_t deviceProtocolVersion = {
     DEVICE_PROTOCOL_MAJOR_VERSION,
@@ -67,6 +68,9 @@ void UsbCommand_GetDeviceProperty(void)
             SetUsbTxBufferUint32(2, I2cMainBusRequestedBaudRateBps);
             SetUsbTxBufferUint32(6, I2cMainBusActualBaudRateBps);
             break;
+        case DevicePropertyId_Uptime:
+            SetUsbTxBufferUint32(1, CurrentTime);
+            break;
         default:
             SetUsbTxBufferUint8(0, UsbStatusCode_GetDeviceProperty_InvalidProperty);
             break;