diff --git a/multi_serdes_channel.py b/multi_serdes_channel.py
index 3bdda41..c0f84ea 100644
--- a/multi_serdes_channel.py
+++ b/multi_serdes_channel.py
@@ -55,6 +55,9 @@ class MultiTransceiverChannel(Module):
             self.uart.tx_data.eq(self.tx_fifo.dout),
             self.uart.tx_stb.eq(self.tx_fifo.readable),
             self.tx_fifo.re.eq(self.uart.tx_ack),
+
+            # Immediate start RX alignment procedure
+            self.rx.start.eq(1),
         ]
 
         rx_fsm = FSM(reset_state="WAIT_GROUP_ALIGN")
diff --git a/multi_serdes_loopback.py b/multi_serdes_loopback.py
index 8c1f56c..3753dbd 100644
--- a/multi_serdes_loopback.py
+++ b/multi_serdes_loopback.py
@@ -43,6 +43,9 @@ class MultiSerDesLoopBack(Module):
             self.uart.tx_data.eq(self.tx_fifo.dout),
             self.uart.tx_stb.eq(self.tx_fifo.readable),
             self.tx_fifo.re.eq(self.uart.tx_ack),
+
+            # Just start RX alignment, no reason to wait
+            self.rx.start.eq(1),
         ]
 
         self.submodules.rx_fsm = FSM(reset_state="WAIT_GROUP_ALIGN")
diff --git a/sync_serdes.py b/sync_serdes.py
index e5b6501..1325d20 100644
--- a/sync_serdes.py
+++ b/sync_serdes.py
@@ -570,6 +570,8 @@ class SyncSingleRX(Module):
         # Ports
         # IN: Undelayed serial signal
         self.ser_in_no_dly = Signal()
+        # IN: Start RX alignment signal
+        self.start = Signal()
         # OUT: Received data after self-alignment, decimation
         self.rxdata = Signal(5)
         # OUT: RXDATA from this channel is self-aligned
@@ -620,7 +622,7 @@ class SyncSingleRX(Module):
         self.submodules.fsm = FSM(reset_state="WAIT_SIGNAL")
 
         self.fsm.act("WAIT_SIGNAL",
-            If(self.rx.rxdata != 0,
+            If((self.rx.rxdata != 0) & self.start,
                 NextState("WAIT_ALIGNER")
             ),
         )
@@ -673,6 +675,8 @@ class MultiLineRX(Module):
         # Ports
         # IN: Undelayed serial signal
         self.ser_in_no_dly = Signal(4)
+        # IN: Start alignment process of all channels
+        self.start = Signal()
         # OUT: Received data after self-alignment, decimation
         self.rxdata = Signal(20)
         # OUT: RXDATA from all channels are self-aligned
@@ -693,8 +697,9 @@ class MultiLineRX(Module):
 
             self.comb += [
                 single_rx.ser_in_no_dly.eq(self.ser_in_no_dly[idx]),
-                # self.rxdata[5*idx:5*(idx+1)].eq(single_rx.rxdata),
                 channel_align_done[idx].eq(single_rx.align_done),
+                # Propagate start alignment signal to all channels
+                single_rx.start.eq(self.start),
             ]
         
             # FIFOs for handling group delay