Add propegation test and results waveform

make.py

@@ -251,30 +251,36 @@ class BaseSoC(SoCCore):
         #     pads     = platform.request("dac_ctrl")
         # )
 
+        # Propagation Delay Test -------------------------------------------------------------------
+        from testProp import TestProp
+        self.proptest = TestProp(platform = platform)
+
         # LiteScope Analyzer -----------------------------------------------------------------------
         self.add_uartbone(name="debug_uart", baudrate=921600)
         from litescope import LiteScopeAnalyzer
         analyzer_signals = [
-            self.can.can_rx,
-            self.can.can_tx,
-            # self.dac_vol.volume.re,
-            # self.dac_vol.volume.storage,
-            # self.dac_vol.m_sel_n,
-            # self.dac_vol.m_clock,
-            # self.dac_vol.m_data,
-            self.audio.targ0.re,
-            # self.audio.targ0.storage,
-            self.audio.wave0.re,
-            # self.audio.wave0.storage,
-            self.audio.backpressure_48,
-            # self.audio.sample_48,
-            self.audio.audioready_48,
-            self.audio.readrequest_36,
-            # self.audio.sample_36,
-            self.audio.fifoempty_36,
-            self.audio.dac_lrck,
-            self.audio.dac_bck,
-            self.audio.dac_data,
+            self.proptest.i_saw,
+            self.proptest.o_sin,
+            # self.can.can_rx,
+            # self.can.can_tx,
+            # # self.dac_vol.volume.re,
+            # # self.dac_vol.volume.storage,
+            # # self.dac_vol.m_sel_n,
+            # # self.dac_vol.m_clock,
+            # # self.dac_vol.m_data,
+            # self.audio.targ0.re,
+            # # self.audio.targ0.storage,
+            # self.audio.wave0.re,
+            # # self.audio.wave0.storage,
+            # self.audio.backpressure_48,
+            # # self.audio.sample_48,
+            # self.audio.audioready_48,
+            # self.audio.readrequest_36,
+            # # self.audio.sample_36,
+            # self.audio.fifoempty_36,
+            # self.audio.dac_lrck,
+            # self.audio.dac_bck,
+            # self.audio.dac_data,
         ]
         from math import ceil, floor
         analyzer_depth = floor(190_000 / ((ceil(sum([s.nbits for s in analyzer_signals]) / 16)) * 16))

testProp.py

@@ -0,0 +1,34 @@
+from migen import *
+
+from litex.soc.interconnect.csr import *
+from litex.soc.integration.doc import ModuleDoc
+
+# Test RGB Module ----------------------------------------------------------------------------------
+
+class TestProp(Module, AutoCSR, ModuleDoc):
+    """
+    Propagation Test Module
+
+    Test propagation delay of the genSaw block
+    """
+    def __init__(self, platform):
+        platform.add_source("rtl/cordic.sv")
+        platform.add_source("rtl/saw2sin.sv")
+
+        self.targ0 = CSRStorage(size = 24, description = "Oscillator 0: Target Frequency of the Sawtooth Wave")
+        self.wave0 = CSRStorage(size =  8, description = "Oscillator 0: Waveform to Output")
+
+        self.delay = Signal(3) # Update i_saw after 2^3 = 8 cycles
+        self.i_saw = Signal(16)
+        self.o_sin = Signal(16)
+
+        # # #
+
+        self.sync += self.delay.eq(self.delay + 1)
+        self.sync += If(self.delay == 0, self.i_saw.eq(self.i_saw + 1))
+
+        self.specials += Instance("saw2sin",
+            i_i_clk = ClockSignal(),
+            i_i_saw = self.i_saw,
+            o_o_sin = self.o_sin,
+        )