fix: Only upload sequence and synch active sequencers

src/qibolab/_core/instruments/qblox/cluster.py

@@ -184,7 +184,7 @@ def _execute(
         for slot, seqs in sequencers.items():
             for ch, seq in seqs.items():
                 # wait all sequencers
-                status = self.cluster.get_sequencer_status(slot, seq, timeout=10)
+                status = self.cluster.get_sequencer_status(slot, seq, timeout=1)
                 if status.status is not qblox.SequencerStatuses.OKAY:
                     raise RuntimeError(status)
                 sequence = sequences.get(ch)
@@ -194,7 +194,7 @@ def _execute(
                 if len(seq_acqs) == 0:
                     # not an acquisition channel, or unused
                     continue
-                self.cluster.get_acquisition_status(slot, seq, timeout=10)
+                self.cluster.get_acquisition_status(slot, seq, timeout=1)
                 if acquisition is AcquisitionType.RAW:
                     for name in seq_acqs:
                         self.cluster.store_scope_acquisition(slot, seq, name)

src/qibolab/_core/instruments/qblox/config.py

@@ -152,13 +152,6 @@ def sequencer(
     acquisition: AcquisitionType,
 ):
     """Configure sequencer-wide settings."""
-    # upload sequence
-    # - ensure JSON compatibility of the sent dictionary
-    seq.sequence(json.loads(sequence.model_dump_json()))
-
-    # configure the sequencers to synchronize
-    seq.sync_en(True)
-
     config = configs[channel_id]
 
     # set parameters
@@ -190,3 +183,14 @@ def sequencer(
 
     # connect to physical address
     seq.connect_sequencer(address.local_address)
+
+    # avoid sequence operations for inactive sequencers, including synchronization
+    if sequence.is_empty:
+        return
+
+    # upload sequence
+    # - ensure JSON compatibility of the sent dictionary
+    seq.sequence(json.loads(sequence.model_dump_json()))
+
+    # configure the sequencers to synchronize
+    seq.sync_en(True)