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build.dsl: add conn argument to Connector.

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This commit is contained in:
Robin Heinemann 2019-08-18 21:56:25 +02:00 • committed by whitequark
parent 84f2c3df2b
commit 8e048c5a7c
3 changed files with 49 additions and 4 deletions
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13
nmigen/test/test_build_dsl.py
View file

@ -278,6 +278,19 @@ class ConnectorTestCase(FHDLTestCase):
("DP1", "A1"),
]))
def test_conn(self):
c = Connector("pmod", 0, "0 1 2 3 - - 4 5 6 7 - -", conn=("expansion", 0))
self.assertEqual(c.mapping, OrderedDict([
("1", "expansion_0:0"),
("2", "expansion_0:1"),
("3", "expansion_0:2"),
("4", "expansion_0:3"),
("7", "expansion_0:4"),
("8", "expansion_0:5"),
("9", "expansion_0:6"),
("10", "expansion_0:7"),
]))
def test_wrong_io(self):
with self.assertRaises(TypeError,
msg="Connector I/Os must be a dictionary or a string, not []"):

21
nmigen/test/test_build_res.py
View file

@ -168,6 +168,27 @@ class ResourceManagerTestCase(FHDLTestCase):
("spi_0__mosi__io", ["B3"], {}),
])
def test_request_via_nested_connector(self):
new_connectors = [
Connector("pmod_extension", 0, "1 2 3 4 - -", conn=("pmod", 0)),
]
self.cm.add_connectors(new_connectors)
self.cm.add_resources([
Resource("spi", 0,
Subsignal("ss", Pins("1", conn=("pmod_extension", 0))),
Subsignal("clk", Pins("2", conn=("pmod_extension", 0))),
Subsignal("miso", Pins("3", conn=("pmod_extension", 0))),
Subsignal("mosi", Pins("4", conn=("pmod_extension", 0))),
)
])
spi0 = self.cm.request("spi", 0)
self.assertEqual(list(self.cm.iter_port_constraints()), [
("spi_0__ss__io", ["B0"], {}),
("spi_0__clk__io", ["B1"], {}),
("spi_0__miso__io", ["B2"], {}),
("spi_0__mosi__io", ["B3"], {}),
])
def test_request_clock(self):
clk100 = self.cm.request("clk100", 0)
clk50 = self.cm.request("clk50", 0, dir="i")