pipeline GW: fix timing

pipeline GW: update linktrig

pipeline GW: fix idle KCode error

pipeline GW: clenaup

pipeline GW: cleanup

src/gateware/cxp_pipeline.py

@@ -47,7 +47,7 @@ class Packet_Wrapper(Module):
             self.sink.ack.eq(0),
             self.source.stb.eq(1),
             self.source.data.eq(Replicate(KCode["pak_start"], 4)),
-            self.source.k.eq(0b1111),
+            self.source.k.eq(Replicate(1, 4)),
             If(self.source.ack, NextState("COPY")),
         )
 
@@ -63,7 +63,7 @@ class Packet_Wrapper(Module):
             self.sink.ack.eq(0),
             self.source.stb.eq(1),
             self.source.data.eq(Replicate(KCode["pak_end"], 4)),
-            self.source.k.eq(0b1111),
+            self.source.k.eq(Replicate(1, 4)),
             self.source.eop.eq(1),
             If(self.source.ack, NextState("IDLE")),
         )
@@ -72,7 +72,7 @@ class TX_Trigger(Module):
     def __init__(self):
         self.stb = Signal()
         self.delay = Signal(char_width) 
-        self.linktrig_mode = Signal(max=4)
+        self.linktrig_mode = Signal()
 
         # # #
 
@@ -85,14 +85,14 @@ class TX_Trigger(Module):
         trig_packet = [Signal(char_width), Signal(char_width), Signal(char_width), self.delay, self.delay, self.delay]
         trig_packet_k = [1, 1, 1, 0, 0, 0]
         self.comb += [
-            If((self.linktrig_mode == 0) | (self.linktrig_mode == 2),
+            If(self.linktrig_mode,
-                trig_packet[0].eq(KCode["trig_indic_28_2"]),
-                trig_packet[1].eq(KCode["trig_indic_28_4"]),
-                trig_packet[2].eq(KCode["trig_indic_28_4"]),
-            ).Else(
                 trig_packet[0].eq(KCode["trig_indic_28_4"]),
                 trig_packet[1].eq(KCode["trig_indic_28_2"]),
                 trig_packet[2].eq(KCode["trig_indic_28_2"]),
+            ).Else(
+                trig_packet[0].eq(KCode["trig_indic_28_2"]),
+                trig_packet[1].eq(KCode["trig_indic_28_4"]),
+                trig_packet[2].eq(KCode["trig_indic_28_4"]),
             ),
         ]
         
@@ -140,7 +140,7 @@ class Idle_Word_Inserter(Module):
             self.sink.ack.eq(0),
             self.source.stb.eq(1),
             self.source.data.eq(Cat(KCode["idle_comma"], KCode["idle_alignment"], KCode["idle_alignment"], C(0xB5, char_width))),
-            self.source.k.eq(0b1110),
+            self.source.k.eq(Cat(1, 1, 1, 0)),
             If(self.source.ack, NextState("COPY")),
         )
 
@@ -166,7 +166,7 @@ class Trigger_ACK_Inserter(Module):
             self.sink.ack.eq(0),
             self.source.stb.eq(1),
             self.source.data.eq(Replicate(KCode["io_ack"], 4)),
-            self.source.k.eq(0b1111),
+            self.source.k.eq(Replicate(1, 4)),
             If(self.source.ack, NextState("WRITE_ACK1")),
         )
 
@@ -174,7 +174,7 @@ class Trigger_ACK_Inserter(Module):
             self.sink.ack.eq(0),
             self.source.stb.eq(1),
             self.source.data.eq(Replicate(C(0x01, char_width), 4)),
-            self.source.k.eq(0b0000),
+            self.source.k.eq(Replicate(0, 4)),
             If(self.source.ack, NextState("COPY")),
         )
 
@@ -240,14 +240,14 @@ class TX_Bootstrap(Module, AutoCSR):
         fsm.act("WRITE_TEST_PACKET_TYPE",
             self.source.stb.eq(1),
             self.source.data.eq(Replicate(C(0x04, char_width), 4)),
-            self.source.k.eq(0b0000),
+            self.source.k.eq(Replicate(0, 4)),
             If(self.source.ack,NextState("WRITE_TEST_COUNTER"))
         )
 
         fsm.act("WRITE_TEST_COUNTER",
             self.source.stb.eq(1),
             self.source.data.eq(Cat(cnt[:8], cnt[:8]+1, cnt[:8]+2, cnt[:8]+3)),
-            self.source.k.eq(0b0000),
+            self.source.k.eq(Cat(0, 0, 0, 0)),
             If(self.source.ack,
                 If(cnt == 0xFFF-3,
                     self.source.eop.eq(1),
@@ -405,6 +405,7 @@ class RX_Bootstrap(Module):
         self.comb += [
             mem_port.adr[:addr_nbits].eq(addr),
             mem_port.adr[addr_nbits:].eq(write_ptr),
+            mem_port.dat_w.eq(self.sink.data),
         ]
 
         # For control ack, event packet
@@ -416,9 +417,7 @@ class RX_Bootstrap(Module):
                     NextState("MOVE_BUFFER_PTR"),
                 ).Else(
                     mem_port.we.eq(1),
-                    mem_port.dat_w.eq(self.sink.data),
                     NextValue(addr, addr + 1),
-
                     If(addr == buffer_depth - 1,
                         # discard the packet
                         self.buffer_err.eq(1),