rtio/sed: support negative latency compensation

2017-09-26 16:11:08 +08:00 · 2017-09-26 16:11:08 +08:00 · 9905b8723b
parent f079ac6af6
commit 9905b8723b
1 changed files with 2 additions and 1 deletions
--- a/artiq/gateware/rtio/sed/lane_distributor.py
+++ b/artiq/gateware/rtio/sed/lane_distributor.py
@ -81,7 +81,8 @@ class LaneDistributor(Module):
        self.comb += latency_compensation_port.adr.eq(self.cri.chan_sel[:16]) 

        # cycle #2, write
-        compensation = latency_compensation_port.dat_r
+        compensation = Signal((14, True))
+        self.comb += compensation.eq(latency_compensation_port.dat_r)
        timestamp_above_min = Signal()
        timestamp_above_laneA_min = Signal()
        timestamp_above_laneB_min = Signal()