diff --git a/tests/psoc6/hw_ext/multi_blocking/i2s_rx.py b/tests/psoc6/hw_ext/multi_blocking/i2s_rx.py
index 554617a1f8c09..75c40a5a6fed0 100644
--- a/tests/psoc6/hw_ext/multi_blocking/i2s_rx.py
+++ b/tests/psoc6/hw_ext/multi_blocking/i2s_rx.py
@@ -104,7 +104,30 @@ def print_i2s_format(raw_buf, bits):
         print(s_tuple)
 
 
-print_i2s_format(rx_buf, 16)
+# print_i2s_format(rx_buf, 16)
+
+
+def make_expected_sequence():
+    len = 0xFF
+    expected_frame = bytearray(len)
+    for i in range(len):
+        expected_frame[i] = i
+
+    return expected_frame
+
+
+def find_sublist_in_list(full_list, sublist):
+    for i in range(len(full_list) - len(sublist) - 1):
+        if full_list[i : i + len(sublist)] == sublist:
+            return True
+
+    return False
+
+
+exp_seq = make_expected_sequence()
+
+print("Frame sequence detected : ", find_sublist_in_list(rx_buf, exp_seq))
+
 
 # rx_ascii = binascii.hexlify(rx_buf)
 # print(f'rx_buf = {rx_ascii}')