RPI: don't throw exception when no valid frame was received

2 years ago · c6fb43c4ef
1 changed files with 1 additions and 1 deletions
--- a/tools/rpi/hoymiles/init.py
+++ b/tools/rpi/hoymiles/init.py
@ -647,7 +647,7 @@ class InverterTransaction:
            self.time_rx = end_frame.time_rx
            tr_len = end_frame.seq - 0x80
        except StopIteration:
-            seq_last = max(frames, key=lambda frame:frame.seq).seq
+            seq_last = max(frames, key=lambda frame:frame.seq).seq if len(frames) else 0
            self.__retransmit_frame(seq_last + 1)
            raise BufferError(f'Missing packet: Last packet {len(self.scratch)}')