diff options
| author | whitequark <whitequark@whitequark.org> | 2020-06-22 15:07:54 +0000 |
|---|---|---|
| committer | whitequark <whitequark@whitequark.org> | 2020-06-22 15:07:54 +0000 |
| commit | a889afebd9e584af449e27c573148e8aa257120e (patch) | |
| tree | 2c09f58e148834ef564c0d318ac49f3b1627916f /nmigen_boards/resources/interface.py | |
| parent | 8018f052bba511a3c49f4271c7d427d12e7691c2 (diff) | |
resources: allow UARTResource without control signals to have no role.
Diffstat (limited to 'nmigen_boards/resources/interface.py')
| -rw-r--r-- | nmigen_boards/resources/interface.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/nmigen_boards/resources/interface.py b/nmigen_boards/resources/interface.py index 97489e2..848e1b8 100644 --- a/nmigen_boards/resources/interface.py +++ b/nmigen_boards/resources/interface.py @@ -6,7 +6,8 @@ __all__ = ["UARTResource", "IrDAResource", "SPIResource"] def UARTResource(*args, rx, tx, rts=None, cts=None, dtr=None, dsr=None, dcd=None, ri=None, conn=None, attrs=None, role=None): - assert role in ("dce", "dte") + if any(line is not None for line in (rts, cts, dtr, dsr, dcd, ri)): + assert role in ("dce", "dte") if role == "dte": dce_to_dte = "i" dte_to_dce = "o" |