From b2e4b02806d2f10f2bc7c33ecb6492967f31f09b Mon Sep 17 00:00:00 2001
From: Egor00f <y.yarin@inbox.ru>
Date: Sun, 8 Mar 2026 18:40:07 +0500
Subject: [PATCH] libshell: update `shell_ping()` make it faster

---
 .../ktcc/trunk/lib/libshell/shell_ping.c      | 20 +++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/programs/develop/ktcc/trunk/lib/libshell/shell_ping.c b/programs/develop/ktcc/trunk/lib/libshell/shell_ping.c
index 0e0aeec0d..d3bd99a49 100644
--- a/programs/develop/ktcc/trunk/lib/libshell/shell_ping.c
+++ b/programs/develop/ktcc/trunk/lib/libshell/shell_ping.c
@@ -1,12 +1,24 @@
 #include <shell_api.h>
 #include <sys/ksys.h>
+#include <sys/ksys.h>
+
+#define SHELL_PING_TIMEOUT 10 // 0.1 sec
+#define SHELL_PING_MIN_DELAY 1
 
 int shell_ping()
 {
     *__shell_shm = SHELL_PING;
 
-    _ksys_thread_yield();
-    _ksys_delay(40);
+    _ksys_thread_yield();   // hope shell is fast enough
 
-    return *__shell_shm == SHELL_OK;
-}
\ No newline at end of file
+    size_t i = 0;
+    while (*__shell_shm != SHELL_OK){
+        if (i > (SHELL_PING_TIMEOUT / SHELL_PING_MIN_DELAY)) {
+            return 0;
+        }
+        i++;
+        _ksys_delay(SHELL_PING_MIN_DELAY);
+    }
+
+    return 1;
+}