M300 set 3.5s duration limit

2025-02-11 17:59:50 +01:00 · 2025-02-11 17:59:50 +01:00 · c40af0c896
parent 9fb034a985
commit c40af0c896
1 changed files with 2 additions and 2 deletions
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@ -6515,11 +6515,11 @@ void process_commands()

    #### Parameters
    - `S` - frequency in Hz. Not all firmware versions support this parameter
-    - `P` - duration in milliseconds
+    - `P` - duration in milliseconds max 3500ms
    */
    case 300: // M300
    {
-      uint16_t beepP = code_seen('P') ? code_value() : 1000;
+      uint16_t beepP = code_seen('P') ? min(code_value(), 3500) : 1000;
      uint16_t beepS;
      if (!code_seen('S'))
          beepS = 0;