diff --git a/raven_spn/raven_spn b/raven_spn/raven_spn
index 96086c1..e595946 100755
Binary files a/raven_spn/raven_spn and b/raven_spn/raven_spn differ
diff --git a/raven_spn/src/raven_spn.cpp b/raven_spn/src/raven_spn.cpp
index 382365c..4a733a4 100644
--- a/raven_spn/src/raven_spn.cpp
+++ b/raven_spn/src/raven_spn.cpp
@@ -76,7 +76,7 @@ void platform_init(){
     clear_csr(mie, MIP_MEIP);
     clear_csr(mie, MIP_MTIP);
     for (auto& h:g_ext_interrupt_handlers) h=no_interrupt_handler;
-    configure_irq(1, msi_interrupt_handler);
+    configure_irq(2, msi_interrupt_handler);
     // Enable interrupts in general.
     set_csr(mstatus, MSTATUS_MIE);
     // Enable the Machine-External bit in MIE
@@ -89,17 +89,14 @@ bool double_equals(double a, double b, double epsilon = 0.001)
 }
 
 void run_xspn() {
-	printf("Start SPN HW accelerator\n");
-
 	spn::mode_reg() = 0;
 	spn::input_length_reg() = 100; 		// each sample consists of 5 uint8 values
-	spn::input_addr_reg() = 0x80001000;
-	spn::output_addr_reg() = 0x80002000;
+	spn::input_addr_reg() = 0x800C0000;
+	spn::output_addr_reg() = 0x8001C000;
 	spn::num_of_in_beats_reg() = 8;		// Number of AXI4 burst beats needed to load all input data
 	spn::num_of_out_beats_reg() = 13;	// Number of AXI4 burst beats needed to store all result data
 	spn::start_reg() = 1;
 	delayUS(50);
-	printf("Cycle count:%d\n", spn::start_reg());
 	spn::interrupt_reg() = 1;
 }
 
@@ -113,27 +110,26 @@ int main() {
     printf("READOUT HW:0x%x\n", spn::readout_reg());
     spn::interrupt_reg() = 1;
 
-	for (int k = 0; k < 200; k+=100) {
+	for (int k = 0; k < 10000; k+=100) {
         // write input samples into the memory
-        int * mem_base = (int *) 0x80001000;
+        int * mem_base = (int *) 0x800C0000;
         int offset = k * 5;
 
         for(size_t i = 0, j = 0; j < 125; i += 4, j++) {
         	*(mem_base+j) = input_data.at(offset+i);
-        	*(mem_base+j) |= input_data.at(offset+i+1) << 8;
-        	*(mem_base+j) |= input_data.at(offset+i+2) << 16;
-        	*(mem_base+j) |= input_data.at(offset+i+3) << 24;
+        	*(mem_base+j) |= (input_data.at(offset+i+1) << 8)  & 0x0000FF00;
+        	*(mem_base+j) |= (input_data.at(offset+i+2) << 16) & 0x00FF0000;
+        	*(mem_base+j) |= (input_data.at(offset+i+3) << 24) & 0xFF000000;
         }
 
+        printf("XSPN process samples %d - %d\n", k, k+100);
     	run_xspn();
 
     	// read calculation results from the memory
-        double * res_base = (double*) 0x80002000;
+        double * res_base = (double*) 0x8001C000;
 
         for (int i = 0; i < 100; i++) {
-            if (double_equals(res_base[i] * ln2, ref_data.at(k+i))) {
-//                printf("XSPN ref %d comparison PASSED\n", k+i);
-            } else {
+            if (!double_equals(res_base[i] * ln2, ref_data.at(k+i))) {
                 printf("XSPN ref %d comparison FAILED\n", k+i);
             }
     	}