diff --git a/dap-sdk/core/include/dap_common.h b/dap-sdk/core/include/dap_common.h
index ee1b595c5b0bf212ba7503b81f80452645c06995..39bca787cda8f9239fdc1a78dd1519eb58c6c763 100755
--- a/dap-sdk/core/include/dap_common.h
+++ b/dap-sdk/core/include/dap_common.h
@@ -33,7 +33,9 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <time.h>
-
+#ifdef __MACH__
+#include <dispatch/dispatch.h>
+#endif
 #include "portable_endian.h"
 
 typedef uint8_t byte_t;
diff --git a/dap-sdk/core/libdap.pri b/dap-sdk/core/libdap.pri
index 3556d8828e0c29a59f3fc03751f2140501bfd503..118eb93d3432898879883b8b6a68940e5987556e 100755
--- a/dap-sdk/core/libdap.pri
+++ b/dap-sdk/core/libdap.pri
@@ -6,6 +6,7 @@ unix {
 }
 darwin {
     include(src/darwin/darwin.pri)
+    LIBS -= -lrt
 }
 
 win32 {
diff --git a/dap-sdk/core/src/dap_common.c b/dap-sdk/core/src/dap_common.c
index 9283705682f2925f2d2742b7a444fabf4c400700..3803cfee430abe230ac629a1da667c775695e799 100755
--- a/dap-sdk/core/src/dap_common.c
+++ b/dap-sdk/core/src/dap_common.c
@@ -829,6 +829,11 @@ static void CALLBACK s_win_callback(PVOID a_arg, BOOLEAN a_always_true)
     UNUSED(a_always_true);
     s_timers[(size_t)a_arg].callback(s_timers[(size_t)a_arg].param);
 }
+#elif defined __MACH__
+static void s_bsd_callback(int a_arg)
+{
+    s_timers[a_arg].callback(s_timers[a_arg].param);
+}
 #else
 static void s_posix_callback(union sigval a_arg)
 {
@@ -856,7 +861,17 @@ void *dap_interval_timer_create(unsigned int a_msec, dap_timer_callback_t a_call
         return NULL;
     }
     EnterCriticalSection(&s_timers_lock);
-#elif DAP_OS_UNIX
+#elif defined __MACH__
+    if (s_timers_count == 0) {
+        pthread_mutex_init(&s_timers_lock, NULL);
+    }
+    dispatch_queue_t l_queue = dispatch_queue_create("tqueue", 0);
+    dispatch_source_t l_timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, l_queue);
+    dispatch_source_set_event_handler(l_timer, ^(void){s_bsd_callback(s_timers_count);});
+    dispatch_time_t start = dispatch_time(DISPATCH_TIME_NOW, a_msec * 1000000);
+    dispatch_source_set_timer(l_timer, start, a_msec * 1000000, 0);
+    dispatch_resume(l_timer);
+#else
     if (s_timers_count == 0) {
         pthread_mutex_init(&s_timers_lock, NULL);
     }
@@ -926,8 +941,13 @@ int dap_interval_timer_delete(void *a_timer)
     if (s_timers_count == 0) {
         pthread_mutex_destroy(&s_timers_lock);
     }
+#ifdef __MACH__
+    dispatch_source_cancel(a_timer);
+    return 0;
+#else
     return timer_delete((timer_t)a_timer);
 #else
    //DARWIN
 #endif
+#endif
 }
diff --git a/dap-sdk/crypto/src/GOST/block_cipher.c b/dap-sdk/crypto/src/GOST/block_cipher.c
index e1f9685be24889e15c1213cf9be4ab6bc8734076..93175427f0e22cb99207cc8cf1fec9060090b65b 100644
--- a/dap-sdk/crypto/src/GOST/block_cipher.c
+++ b/dap-sdk/crypto/src/GOST/block_cipher.c
@@ -6,7 +6,11 @@
 
 #include <stdio.h>
 #include <memory.h>
+#ifdef __MACH__
+#include <sys/malloc.h>
+#else
 #include <malloc.h>
+#endif
 #include <stdlib.h>
 
 #include "28147_14.h"