83 lines
2.5 KiB
Diff
83 lines
2.5 KiB
Diff
diff --git a/software/glasgow/applet/all.py b/software/glasgow/applet/all.py
|
|
index 5aa86ea..715e5ec 100644
|
|
--- a/software/glasgow/applet/all.py
|
|
+++ b/software/glasgow/applet/all.py
|
|
@@ -43,3 +43,5 @@ from .video.rgb_input import VideoRGBInputApplet
|
|
from .video.vga_output import VGAOutputApplet
|
|
from .video.vga_terminal import VGATerminalApplet
|
|
from .video.ws2812_output import VideoWS2812OutputApplet
|
|
+
|
|
+from .logic import LogicApplet
|
|
diff --git a/software/glasgow/applet/logic.py b/software/glasgow/applet/logic.py
|
|
new file mode 100644
|
|
index 0000000..eabca52
|
|
--- /dev/null
|
|
+++ b/software/glasgow/applet/logic.py
|
|
@@ -0,0 +1,66 @@
|
|
+import sys
|
|
+import logging
|
|
+import asyncio
|
|
+from nmigen.compat import *
|
|
+
|
|
+from . import *
|
|
+
|
|
+
|
|
+class LogicSubtarget(Module):
|
|
+ def __init__(self, pads, in_fifo):
|
|
+ latch = Signal(4)
|
|
+
|
|
+ self.comb += [
|
|
+ in_fifo.din.eq(Cat(pads.d_t.i[:4], latch)),
|
|
+ ]
|
|
+
|
|
+ self.submodules.fsm = FSM()
|
|
+ self.fsm.act("CAPTURE-1",
|
|
+ NextValue(latch, pads.d_t.i),
|
|
+ NextState("CAPTURE-2")
|
|
+ )
|
|
+ self.fsm.act("CAPTURE-2",
|
|
+ in_fifo.we.eq(1),
|
|
+ NextState("CAPTURE-1")
|
|
+ )
|
|
+
|
|
+
|
|
+class LogicApplet(GlasgowApplet, name="logic"):
|
|
+ logger = logging.getLogger(__name__)
|
|
+ preview = True
|
|
+
|
|
+ @classmethod
|
|
+ def add_build_arguments(cls, parser, access):
|
|
+ super().add_build_arguments(parser, access)
|
|
+
|
|
+ access.add_pin_set_argument(parser, "d", required=True, width=range(5))
|
|
+
|
|
+ def build(self, target, args):
|
|
+ self.mux_interface = iface = target.multiplexer.claim_interface(self, args)
|
|
+ iface.add_subtarget(LogicSubtarget(
|
|
+ pads=iface.get_pads(args, pin_sets=("d",)),
|
|
+ in_fifo=iface.get_in_fifo(auto_flush=False),
|
|
+ ))
|
|
+
|
|
+ @classmethod
|
|
+ def add_run_arguments(cls, parser, access):
|
|
+ super().add_run_arguments(parser, access)
|
|
+
|
|
+ async def run(self, device, args):
|
|
+ return await device.demultiplexer.claim_interface(self, self.mux_interface, args)
|
|
+
|
|
+ @classmethod
|
|
+ def add_interact_arguments(cls, parser):
|
|
+ pass
|
|
+
|
|
+ async def interact(self, device, args, iface):
|
|
+ while True:
|
|
+ data = await iface.read(65536)
|
|
+ sys.stdout.buffer.write(data)
|
|
+
|
|
+# -------------------------------------------------------------------------------------------------
|
|
+
|
|
+class LogicAppletTestCase(GlasgowAppletTestCase, applet=LogicApplet):
|
|
+ @synthesis_test
|
|
+ def test_build(self):
|
|
+ self.assertBuilds()
|