phy/s7ddrphy: add assert to make sure cmd/dat phases are not identical

2018-07-27 08:34:06 +02:00 · 2018-07-27 08:34:06 +02:00 · f0f067fe7d
parent f560b9c182
commit f0f067fe7d
1 changed files with 1 additions and 0 deletions
--- a/litedram/phy/s7ddrphy.py
+++ b/litedram/phy/s7ddrphy.py
@ -61,6 +61,7 @@ def get_sys_phases(nphases, sys_latency, cas_latency, write=False):
            diff_phase = dat_phase - cmd_phase
        else:
            diff_phase = cmd_phase - dat_phase
+    assert cmd_phase != dat_phase
    return cmd_phase, dat_phase