'isOtaCapable' interrogates the bootloader to determine whether or not the bootloader version is sufficient to perform OTA.

Author: aentinger

src/Arduino_Portenta_OTA.cpp

@@ -50,6 +50,18 @@ Arduino_Portenta_OTA::~Arduino_Portenta_OTA()
  * PUBLIC MEMBER FUNCTIONS
  ******************************************************************************/
 
+bool Arduino_Portenta_OTA::isOtaCapable()
+{
+  #define BOOTLOADER_ADDR   (0x8000000)
+  uint32_t bootloader_data_offset = 0x1F000;
+  uint8_t* bootloader_data = (uint8_t*)(BOOTLOADER_ADDR + bootloader_data_offset);
+  uint8_t currentBootloaderVersion = bootloader_data[1];
+  if (currentBootloaderVersion < 22)
+    return false;
+  else
+    return true;
+}
+
 Arduino_Portenta_OTA::Error Arduino_Portenta_OTA::begin()
 {
   Serial1.begin(115200);

src/Arduino_Portenta_OTA.h

@@ -79,6 +79,7 @@ class Arduino_Portenta_OTA
     virtual ~Arduino_Portenta_OTA();
 
 
+    bool  isOtaCapable();
     Error begin();
     Error update();
     void  reset();