Added crate for usb-serial protocol

protocol/src/lib.rs

@@ -0,0 +1,37 @@
+#![no_std]
+use heapless::Vec;
+
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
+pub enum RadomMessage {
+    Status(StatusMessage),
+}
+
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
+pub enum HostMessage {
+    RequestStatus,
+    TriggerDFUBootloader,
+}
+
+#[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
+pub struct StatusMessage {
+    position: Position,
+    alarms: Vec<Alarm, 64>,
+}
+
+#[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
+pub struct Position {
+    az: f32,
+    el: f32,
+    az_endcoder: f32,
+    el_encoder: f32,
+    az_magnetic: f32,
+    el_magnetic: f32,
+}
+
+#[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
+pub enum Alarm {
+    AZEncoderFault,
+    ELEncoderFault,
+}