diff --git a/src/libboard_artiq/src/cxp_downconn.rs b/src/libboard_artiq/src/cxp_downconn.rs
index 33408b0..41acbd3 100644
--- a/src/libboard_artiq/src/cxp_downconn.rs
+++ b/src/libboard_artiq/src/cxp_downconn.rs
@@ -36,6 +36,13 @@ pub fn main(timer: &mut GlobalTimer) {
                 [1, 1, 1, 0],
             ];
 
+            // STEP 1: reset QPLL
+            csr::cxp::downconn_qpll_reset_write(1);
+            info!("waiting for QPLL/CPLL to lock...");
+            while csr::cxp::downconn_qpll_locked_read() != 1 {}
+            info!("QPLL locked");
+
+            // STEP 2: setup tx/rx gtx
             csr::cxp::downconn_data_0_write(DATA[0][0]);
             csr::cxp::downconn_data_1_write(DATA[0][1]);
             csr::cxp::downconn_data_2_write(DATA[0][2]);
@@ -50,9 +57,13 @@ pub fn main(timer: &mut GlobalTimer) {
             csr::cxp::downconn_tx_start_init_write(1);
             csr::cxp::downconn_rx_start_init_write(1);
 
-            info!("waiting for QPLL/CPLL to lock...");
+            info!("waiting for tx setup...");
             timer.delay_us(50_000);
-            info!("tx_phaligndone = {} ", csr::cxp::downconn_txinit_phaligndone_read(),);
+            info!(
+                "tx_phaligndone = {} | rx_phaligndone = {}",
+                csr::cxp::downconn_txinit_phaligndone_read(),
+                csr::cxp::downconn_rxinit_phaligndone_read(),
+            );
 
             // enable txdata tranmission thought MGTXTXP, required by PMA loopback
             csr::cxp::downconn_txenable_write(1);