diff options
| author | whitequark <whitequark@whitequark.org> | 2019-10-03 09:01:42 +0000 |
|---|---|---|
| committer | whitequark <whitequark@whitequark.org> | 2019-10-03 09:01:42 +0000 |
| commit | a5a29342ef6bcdf5c1b7599728002e3a9ddd6550 (patch) | |
| tree | eb87d8a4fc87ae5f01220283d60571e67d8330e4 /nmigen_boards/resources/memory.py | |
| parent | a8630efc28d63ae0b374681cbe9708c7bbd379d7 (diff) | |
Fix typo in SDCardResources().
Diffstat (limited to 'nmigen_boards/resources/memory.py')
| -rw-r--r-- | nmigen_boards/resources/memory.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/nmigen_boards/resources/memory.py b/nmigen_boards/resources/memory.py index dd892cc..4adeaf7 100644 --- a/nmigen_boards/resources/memory.py +++ b/nmigen_boards/resources/memory.py @@ -59,7 +59,8 @@ def SDCardResources(*args, clk, cmd, dat0, dat1=None, dat2=None, dat3=None, io_1bit = list(io_native) io_1bit.append(Subsignal("dat", Pins(dat0, dir="io", assert_width=1))) - if dat3 is not None: # works as electronic card detect + if dat3 is not None: + # DAT3 has a pullup and works as electronic card detect io_1bit.append(Subsignal("ecd", Pins(dat3, dir="i", assert_width=1))) resources.append(Resource.family(*args, default_name="sd_card", ios=io_1bit, name_suffix="1bit")) @@ -73,7 +74,8 @@ def SDCardResources(*args, clk, cmd, dat0, dat1=None, dat2=None, dat3=None, if dat3 is not None: io_spi = list(io_common) - io_spi.append(Subsignal("cs", PinsN(dat3, dir="io"))) # doubles as electronic card detect + # DAT3/CS# has a pullup and doubles as electronic card detect + io_spi.append(Subsignal("cs", PinsN(dat3, dir="io", assert_width=1))) io_spi.append(Subsignal("clk", Pins(clk, dir="o", assert_width=1))) io_spi.append(Subsignal("mosi", Pins(cmd, dir="o", assert_width=1))) io_spi.append(Subsignal("miso", Pins(dat0, dir="i", assert_width=1))) |