drtio: monitor received link_init

2016-09-30 11:25:06 +08:00 · 2016-09-30 11:25:06 +08:00 · 1e0c6d6d5d
parent cefb9e1405
commit 1e0c6d6d5d
1 changed files with 5 additions and 1 deletions
--- a/artiq/gateware/drtio/link_layer.py
+++ b/artiq/gateware/drtio/link_layer.py
@ -256,9 +256,13 @@ class LinkLayer(Module):
            tx.link_init.eq(1),
            tx.signal_rx_ready.eq(1),
            If(rx.remote_rx_ready,
-                NextState("READY")
+                NextState("WAIT_REMOTE_LINK_UP")
            )
        )
+        fsm.act("WAIT_REMOTE_LINK_UP",
+            If(~rx.link_init, NextState("READY"))
+        )
        fsm.act("READY",
+            If(rx.link_init, NextState("RESET_RX")),
            self.ready.eq(1)
        )