Ardupilot tested with OSD in native and betaflight mode, fonts added.

.vscode/launch.json

@@ -3,7 +3,7 @@
     "configurations": [
 
         {
-            "name": "C Debug",
+            "name": "UDP_OSD",
             "type": "cppdbg",
             "request": "launch",
             "program": "${workspaceFolder}/msposd",
@@ -93,6 +93,53 @@
             ],
             "preLaunchTask": "copy msposd"
 
+        },
+        {
+            //--on CAM read serial and forward via mavlink port
+// msposd --channels 7 --master /dev/ttyS2 --baudrate 115200 --out 127.0.0.1:14550 --matrix 11 --ahi 3 -r 50
+
+            "name": "OSD_UART",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/msposd",
+            "args": [                
+                "--master",
+                "/dev/ttyUSB0",
+                "--baudrate",
+                "115200",
+                "--osd",                
+                "-c",
+                "7",
+                "-c",
+                "9",
+                "-r",
+                "50",                
+                "--ahi",
+                "3",  
+                "--matrix",
+                "11",                
+                "-v",
+                "-f",                
+                "/home/home/",                         
+                " "
+
+            ],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/gdb",
+
+            "setupCommands": [
+                {
+                    "description": "MAVLINk gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "copy msposd"
+
         }
     ]
 }

README.md

@@ -153,6 +153,19 @@ curl -k -L -o /usr/share/fonts/font.png https://raw.githubusercontent.com/openip
 curl -k -L -o /usr/share/fonts/font_hd.png https://raw.githubusercontent.com/openipc/msposd/main/fonts/betaflight/font_hd.png
 ```
 
+
+**For Ardupilot**:  
+Set  
+```SERIALx_PROTOCOL = 42``` replace x with the UART number.  
+```OSD_TYPE = 5```  
+To use betaflight fonts, set ```MSP_OPTIONS = 5``` and copy fonts for betaflight as shown above.
+If you prefer to use ardupilot "native" fonts (more icons), then set ```MSP_OPTIONS = 4``` and copy the fonts below.
+```
+mkdir /usr/share/fonts
+curl -k -L -o /usr/share/fonts/font.png https://raw.githubusercontent.com/openipc/msposd/main/fonts/ardupilot/font.png
+curl -k -L -o /usr/share/fonts/font_hd.png https://raw.githubusercontent.com/openipc/msposd/main/fonts/ardupilot/font_hd.png
+```
+
 Start msposd or reference it in OpenIPC boot scripts.  
 
 ### To install on Goke/HiSilicon camera

develepment_notes.txt

@@ -50,7 +50,7 @@ Enhanced AHI ladder, home indicator on the main AHI line
 msposd --channels 7 --master /dev/ttyUSB0 --baudrate 115200  --osd --matrix 11 --ahi 3 -r 30 -v
 
 --on PC read serial and forward to test air no OSD mode
-msposd --channels 7 --master /dev/ttyUSB0 --baudrate 115200  --out 127.0.0.1:14550  --matrix 11 --ahi 3 -r 50 -v
+msposd_x86 --channels 7 --master /dev/ttyUSB0 --baudrate 115200  --out 127.0.0.1:14550  --matrix 11 --ahi 3 -r 50 -v
 
 
 --on CAM read serial and forward via mavlink port

osd.c

@@ -1754,7 +1754,7 @@ static void clear_screen()
         return ;
     //ClearScreen_x86();
     //BetaFlight needs this. INAV can be configured to skip it
-    if (font_pages>2 || (get_time_ms() - LastCleared)>500) {//no faster than 0.5 per second
+    if (!DrawOSD || font_pages == 1 || font_pages>2 || (get_time_ms() - LastCleared)>300) {//no faster than 0.5 per second
         memset(character_map, 0, sizeof(character_map));
         if (bmpBuff.pData!=NULL)//Set whole BMP as transparant, Palette index 0xF if 4bit
             memset(bmpBuff.pData, PIXEL_FORMAT_DEFAULT==PIXEL_FORMAT_I4 ? 0xFF : 0x00 , bmpBuff.u32Height * getRowStride(bmpBuff.u32Width , PIXEL_FORMAT_BitsPerPixel));        
@@ -1788,7 +1788,7 @@ static void msp_callback(msp_msg_t *msp_message)
 {
     displayport_process_message(display_driver, msp_message);
 }
-
+static int set_mode_global_counter=0;
 static void set_options(uint8_t font, msp_hd_options_e is_hd) {
     /*
     if(is_hd) { 
@@ -1798,7 +1798,7 @@ static void set_options(uint8_t font, msp_hd_options_e is_hd) {
     }
     */
    //we need FullHD option?!
-    if (verbose)
+    if (verbose&&set_mode_global_counter++<10)
         printf("FC set mode:%d\r\n",is_hd);
 }