diff --git a/src/libboard_artiq/src/cxp_upconn.rs b/src/libboard_artiq/src/cxp_upconn.rs
index 3388a7b..4348695 100644
--- a/src/libboard_artiq/src/cxp_upconn.rs
+++ b/src/libboard_artiq/src/cxp_upconn.rs
@@ -36,9 +36,8 @@ pub fn tx_test(timer: &mut GlobalTimer) {
     let mut arr: [u16; LEN] = [0; LEN];
 
     unsafe {
-        csr::cxp::upconn_clk_reset_write(1);
-        // csr::cxp::upconn_bitrate2x_enable_write(1);
-        csr::cxp::upconn_clk_reset_write(0);
+        csr::cxp::upconn_bitrate2x_enable_write(1);
+
         loop {
             // TODO: verify the char & word boundary thingy
             for _ in 0..12 {