Check if Microchip hybrid devices (Snap and PICkit 4) are not in AVR mode and report back to the user.

src/DebugToolDrivers/Microchip/MplabPickit4/MplabPickit4.cpp

@@ -1,5 +1,8 @@
 #include "MplabPickit4.hpp"
 
+#include "src/TargetController/Exceptions/DeviceNotFound.hpp"
+#include "src/Services/PathService.hpp"
+
 namespace Bloom::DebugToolDrivers
 {
     MplabPickit4::MplabPickit4()
@@ -9,4 +12,31 @@ namespace Bloom::DebugToolDrivers
             MplabPickit4::CMSIS_HID_INTERFACE_NUMBER
         )
     {}
+
+    void MplabPickit4::init() {
+        using Exceptions::DeviceNotFound;
+
+        try {
+            EdbgDevice::init();
+
+        } catch (const DeviceNotFound& exception) {
+            /*
+             * The MPLAB PICkit 4 could be connected but not in AVR mode - if this is the case, inform the user and
+             * direct them to the AVR mode article.
+             */
+            const auto nonEdbgDevices = this->findMatchingDevices(
+                MplabPickit4::NON_EDBG_USB_VENDOR_ID,
+                MplabPickit4::NON_EDBG_USB_PRODUCT_ID
+            );
+
+            if (!nonEdbgDevices.empty()) {
+                throw DeviceNotFound(
+                    "The connected MPLAB PICkit 4 device is not in \"AVR mode\". Please follow the instructions at "
+                        + Services::PathService::homeDomainName() + "/docs/avr-mode"
+                );
+            }
+
+            throw exception;
+        }
+    }
 }