[#69543] Add STREAM_RD_ERR state coverage in axi4_to_ahb.sv

Signed-off-by: Filip Kokosinski <[email protected]>

verification/block/lib_axi4_to_ahb/ahb_lite_bfm.py

@@ -76,12 +76,14 @@ async def drive(self):
                 self.dut.ahb_hresp.value = ahb_hresp
             except QueueEmpty:
                 self.dut.ahb_hrdata.value = 0
-                self.dut.ahb_hresp.value = 0
 
+                # enforce error on sequential transfers to cover the `STREAM_RD_ERR` state
                 if get_int(self.dut.ahb_htrans) == AHB_LITE_TRANSFER_TYPE_ENCODING.SEQ:
                     self.dut.ahb_hready.value = 1
+                    self.dut.ahb_hresp.value = 1
                 else:
                     self.dut.ahb_hready.value = 0
+                    self.dut.ahb_hresp.value = 0
 
     async def req_monitor_q_bfm(self):
         while True: