diff --git a/openrtx/include/core/threads.h b/openrtx/include/core/threads.h
index ef6e8674..3cc54f60 100644
--- a/openrtx/include/core/threads.h
+++ b/openrtx/include/core/threads.h
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2020 - 2023 by Federico Amedeo Izzo IU2NUO,             *
+ *   Copyright (C) 2020 - 2024 by Federico Amedeo Izzo IU2NUO,             *
  *                                Niccolò Izzo IU2KIN                      *
  *                                Frederik Saraci IU2NRO                   *
  *                                Silvano Seva IU2KWO                      *
@@ -23,29 +23,26 @@
 
 #include <stddef.h>
 
+/**
+ * Threads' stack sizes
+ */
+#define UI_THREAD_STKSIZE     2048
+#define RTX_THREAD_STKSIZE    512
+#define CODEC2_THREAD_STKSIZE 16384
+
+/**
+ * Thread priority levels, UNIX-like: lower level, higher thread priority
+ */
+#ifdef _MIOSIX
+#define THREAD_PRIO_RT      0
+#define THREAD_PRIO_HIGH    1
+#define THREAD_PRIO_NORMAL  2
+#define THREAD_PRIO_LOW     3
+#endif
+
 /**
  * Spawn all the threads for the various functionalities.
  */
 void create_threads();
 
-/**
- * Stack size for state update task, in bytes.
- */
-#define DEV_TASK_STKSIZE 2048
-
-/**
- * Stack size for UI management, in bytes.
- */
-#define UI_TASK_STKSIZE 2048
-
-/**
- * Stack size for baseband control task, in bytes.
- */
-#define RTX_TASK_STKSIZE 512
-
-/**
- * Stack size for codec2 task, in bytes.
- */
-#define CODEC2_TASK_STKSIZE 16384
-
 #endif /* THREADS_H */
diff --git a/openrtx/src/core/audio_codec.c b/openrtx/src/core/audio_codec.c
index 1e4de31a..74607436 100644
--- a/openrtx/src/core/audio_codec.c
+++ b/openrtx/src/core/audio_codec.c
@@ -400,16 +400,16 @@ static bool startThread(const pathId path, void *(*func) (void *))
 
     #if defined(_MIOSIX)
     // Set stack size of CODEC2 thread to 16kB.
-    pthread_attr_setstacksize(&codecAttr, CODEC2_TASK_STKSIZE);
+    pthread_attr_setstacksize(&codecAttr, CODEC2_THREAD_STKSIZE);
 
     // Set priority of CODEC2 thread to the maximum one, the same of RTX thread.
     struct sched_param param;
-    param.sched_priority = sched_get_priority_max(0);
+    param.sched_priority = THREAD_PRIO_HIGH;
     pthread_attr_setschedparam(&codecAttr, &param);
     #elif defined(__ZEPHYR__)
     // Allocate and set the stack for CODEC2 thread
-    void *codec_thread_stack = malloc(CODEC2_TASK_STKSIZE * sizeof(uint8_t));
-    pthread_attr_setstack(&codecAttr, codec_thread_stack, CODEC2_TASK_STKSIZE);
+    void *codec_thread_stack = malloc(CODEC2_THREAD_STKSIZE * sizeof(uint8_t));
+    pthread_attr_setstack(&codecAttr, codec_thread_stack, CODEC2_THREAD_STKSIZE);
     #endif
 
     // Start thread
diff --git a/openrtx/src/core/threads.c b/openrtx/src/core/threads.c
index 27c05a4d..decd0afe 100644
--- a/openrtx/src/core/threads.c
+++ b/openrtx/src/core/threads.c
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2020 - 2023 by Federico Amedeo Izzo IU2NUO,             *
+ *   Copyright (C) 2020 - 2024 by Federico Amedeo Izzo IU2NUO,             *
  *                                Niccolò Izzo IU2KIN                      *
  *                                Frederik Saraci IU2NRO                   *
  *                                Silvano Seva IU2KWO                      *
@@ -205,16 +205,16 @@ void create_threads()
     pthread_attr_init(&rtx_attr);
 
     #ifndef __ZEPHYR__
-    pthread_attr_setstacksize(&rtx_attr, RTX_TASK_STKSIZE);
+    pthread_attr_setstacksize(&rtx_attr, RTX_THREAD_STKSIZE);
     #else
-    void *rtx_thread_stack = malloc(RTX_TASK_STKSIZE * sizeof(uint8_t));
-    pthread_attr_setstack(&rtx_attr, rtx_thread_stack, RTX_TASK_STKSIZE);
+    void *rtx_thread_stack = malloc(RTX_THREAD_STKSIZE * sizeof(uint8_t));
+    pthread_attr_setstack(&rtx_attr, rtx_thread_stack, RTX_THREAD_STKSIZE);
     #endif
 
     #ifdef _MIOSIX
     // Max priority for RTX thread when running with miosix rtos
     struct sched_param param;
-    param.sched_priority = sched_get_priority_max(0);
+    param.sched_priority = THREAD_PRIO_HIGH;
     pthread_attr_setschedparam(&rtx_attr, &param);
     #endif
 
@@ -226,10 +226,10 @@ void create_threads()
     pthread_attr_init(&ui_attr);
 
     #ifndef __ZEPHYR__
-    pthread_attr_setstacksize(&ui_attr, UI_TASK_STKSIZE);
+    pthread_attr_setstacksize(&ui_attr, UI_THREAD_STKSIZE);
     #else
-    void *ui_thread_stack = malloc(UI_TASK_STKSIZE * sizeof(uint8_t));
-    pthread_attr_setstack(&ui_attr, ui_thread_stack, UI_TASK_STKSIZE);
+    void *ui_thread_stack = malloc(UI_THREAD_STKSIZE * sizeof(uint8_t));
+    pthread_attr_setstack(&ui_attr, ui_thread_stack, UI_THREAD_STKSIZE);
     #endif
 
     pthread_t ui_thread;