diff --git a/hw/opae/README b/hw/opae/README
index ad4d25f3..4f5be4af 100644
--- a/hw/opae/README
+++ b/hw/opae/README
@@ -47,8 +47,9 @@ source /export/fpga/bin/setup-fpga-env fpga-pac-a10
 # Acquire a sever node for running ASE simulations
 qsub-sim
 
-# test
+# tests
 ./run_ase.sh ../../driver/tests/basic/basic
+./run_ase.sh ../../driver/tests/demo/demo
 
 # modify "vsim_run.tcl" to dump VCD trace
 vcd file vortex.vcd
@@ -66,4 +67,7 @@ gtkwave ./build_ase/work/vortex.vcd &
 
 # kill process by Users
 ps -u tinebp
-kill -9 <pid>
\ No newline at end of file
+kill -9 <pid>
+
+# fixing device resource busy issue when deleting /build_ase/
+lsof +D build_ase
\ No newline at end of file
diff --git a/hw/opae/sources.txt b/hw/opae/sources.txt
index a148d3c0..2d57397f 100644
--- a/hw/opae/sources.txt
+++ b/hw/opae/sources.txt
@@ -1,14 +1,15 @@
 vortex_afu.json
 
 +define+GLOBAL_BLOCK_SIZE=64
+
 #+define+NUM_CORES=2
 #+define+L2_ENABLE=0
 
-+define+DBG_PRINT_CORE_ICACHE
-+define+DBG_PRINT_CORE_DCACHE
-+define+DBG_PRINT_BANK
-+define+DBG_PRINT_DRAM
-+define+DBG_PRINT_SNP_FWD
+#+define+DBG_PRINT_CORE_ICACHE
+#+define+DBG_PRINT_CORE_DCACHE
+#+define+DBG_PRINT_BANK
+#+define+DBG_PRINT_DRAM
+#+define+DBG_PRINT_SNP_FWD
 
 +incdir+.
 +incdir+../rtl
diff --git a/hw/opae/vortex_afu.sv b/hw/opae/vortex_afu.sv
index 3f33ddb0..0aa17cce 100644
--- a/hw/opae/vortex_afu.sv
+++ b/hw/opae/vortex_afu.sv
@@ -629,7 +629,6 @@ begin
     end
 
     vx_snp_req_valid <= 0;
-    vx_snp_rsp_ready <= 0;
 
     if ((STATE_CLFLUSH == state)
      && (snp_req_ctr < csr_data_size)
@@ -643,7 +642,8 @@ begin
 
     if ((STATE_CLFLUSH == state) 
      && (snp_rsp_ctr < csr_data_size)
-     && vx_snp_rsp_valid) begin
+     && vx_snp_rsp_valid
+     && vx_snp_rsp_ready) begin
        snp_rsp_ctr <= snp_rsp_ctr + 1;
     end   
   end
@@ -687,7 +687,7 @@ Vortex_Socket #() vx_socket (
   .io_req_data      (),
   .io_req_byteen    (),
   .io_req_tag       (),    
-  .io_req_ready     (1'b0),
+  .io_req_ready     (1'b1),
 
   // I/O response
   .io_rsp_valid     (1'b0),