always supply addressable ID

satrs-core/src/tmtc/mod.rs

@@ -40,6 +40,18 @@ impl AddressableId {
             unique_id: u32::from_be_bytes(buf[4..8].try_into().unwrap()),
         })
     }
+
+    pub fn write_to_be_bytes(&self, buf: &mut [u8]) -> Result<usize, ByteConversionError> {
+        if buf.len() < 8 {
+            return Err(ByteConversionError::ToSliceTooSmall(SizeMissmatch {
+                found: buf.len(),
+                expected: 8,
+            }));
+        }
+        buf[0..4].copy_from_slice(&self.target_id.to_be_bytes());
+        buf[4..8].copy_from_slice(&self.unique_id.to_be_bytes());
+        Ok(8)
+    }
 }
 
 /// Generic trait for object which can receive any telecommands in form of a raw bytestream, with