diff --git a/tests/test_midi/src/app_midi_simple.xc b/tests/test_midi/src/app_midi_simple.xc
index ac4bc7df..d56067e5 100644
--- a/tests/test_midi/src/app_midi_simple.xc
+++ b/tests/test_midi/src/app_midi_simple.xc
@@ -1,16 +1,6 @@
 // Copyright 2024 XMOS LIMITED.
 // This Software is subject to the terms of the XMOS Public Licence: Version 1.
 
-/* A very simple *example* of a USB audio application (and as such is un-verified for production)
- *
- * It uses the main blocks from the lib_xua
- *
- * - 2 channels out I2S only
- * - No DFU
- * - I2S only
- *
- */
-
 #include <xs1.h>
 #include <platform.h>
 #include <stdio.h>
@@ -47,8 +37,9 @@ on tile[MIDI_TILE] : clock    clk_midi                      = CLKBLK_MIDI;
 /* See hwsupport.xc */
 void board_setup();
 
+#ifndef CABLE_NUM
 #define CABLE_NUM   0
-
+#endif
 
 unsigned midi_in_parse_helper(unsigned midi[3]){
     struct midi_in_parse_state m_state;
diff --git a/tests/xua_unit_tests/src/test_midi_parse/test_midi_parse.c b/tests/xua_unit_tests/src/test_midi_parse/test_midi_parse.c
index b2a4e45e..775fa826 100644
--- a/tests/xua_unit_tests/src/test_midi_parse/test_midi_parse.c
+++ b/tests/xua_unit_tests/src/test_midi_parse/test_midi_parse.c
@@ -19,9 +19,14 @@
 #define DATA_RANGE      128
 #define DATA_MASK       (DATA_RANGE - 1)
 
-#define NUM_TESTS_PER_TEST  30
+#ifndef NUM_TESTS_PER_TEST
+#define NUM_TESTS_PER_TEST   0
+#endif
+
+#ifndef CABLE_NUM
+#define CABLE_NUM   0
+#endif
 
-#define CABLE_NUM       2
 #define RANDOM_SEED     6031769
 
 unsigned midi_in_parse_ut(unsigned midi[3]){