diff --git a/raven_spn/raven_spn b/raven_spn/raven_spn
index 064e3bc..ffe4650 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 a9816de..12cb5f2 100644
--- a/raven_spn/src/raven_spn.cpp
+++ b/raven_spn/src/raven_spn.cpp
@@ -26,23 +26,12 @@ void run_xspn(int in_addr, int out_addr) {
 	spn::start_reg() = 1;
 }
 
-void load_input_data(int addr, const int k=0) {
-    int * mem_base = (int *) addr;
-	int offset = k * 5;
-
-	for (size_t i = 0, j = 0; j < 625; i += 4, j++) { // load 5000 samples
-		*(mem_base + j) = input_data.at(offset + i);
-		*(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;
-	}
-}
-
 bool check_results(int addr, int k) {
 	bool result = 0;
 	int  step = 500;
 	double *res_base = (double*) (addr);
 	int * error_exit = (int *)0xF0000000;
+    printf("Start result comparison %d - %d\n", k, k+step);
 
 	for (int i = 0; i < step; i++) {
 		if (!double_equals(res_base[i] * ln2, ref_data.at(k + i))) {
@@ -68,9 +57,8 @@ int main() {
     spn::interrupt_reg() = 1;
     printf("READOUT HW:0x%x\n", spn::readout_reg());
 
-	int in_addr  = 0x800C0000;
+	int in_addr  = (int)input_data.data();
 	int out_addr = 0x800A0000;
-    load_input_data(in_addr);
 
     int step = 500; // number of samples to be process at once
     for (int k = 0; k < 10000; k+=step) {
@@ -78,14 +66,11 @@ int main() {
         run_xspn(in_addr, out_addr);
         printf("XSPN processes samples %d - %d\n", k, k+step);
 
-        // pre-load data for the next run while HW accelerator is running
-        if(k<(10000-step))
-            load_input_data(in_addr, k+step);
-
         wait_for_interrupt();
     	spn::interrupt_reg() = 1;
 
 		ret_val = check_results(out_addr, k);
+		in_addr += 2500;
 	}
 
 	return ret_val;