Centralize NanoXRP flag on Connection

Introduce a private _isNanoXRP flag with isNanoXRP() getter and setNanoXRP() setter on the base Connection class. Remove the USBConnection-specific isNanoXRP() override.

Author: SaintSampo

src/connections/connection.ts

@@ -67,7 +67,11 @@ abstract class Connection {
     abstract disconnect(): Promise<void>;
     abstract isConnected(): boolean;
 
-    isNanoXRP(): boolean { return false; }
+    private _isNanoXRP: boolean = false;
+
+    isNanoXRP(): boolean { return this._isNanoXRP; }
+
+    setNanoXRP(val: boolean): void { this._isNanoXRP = val; }
 
     /**
      * HandleEsc 

src/connections/usbconnection.ts

@@ -263,15 +263,6 @@ export class USBConnection extends Connection {
         return this.connectionStates === ConnectionState.Connected;
     }
 
-    public isNanoXRP(): boolean {
-        if (this.port) {
-            const info = this.port.getInfo();
-            return info.usbProductId === this.USB_PRODUCT_ID_NANOXRP &&
-                   info.usbVendorId === this.USB_VENDOR_ID_NANOXRP;
-        }
-        return false;
-    }
-
     /**
      * connection - creates an async connection and return result via promise
      */

src/managers/commandstoxrpmgr.ts

@@ -227,7 +227,8 @@ export class CommandToXRPMgr {
                         this.PROCESSOR = 2350;
                     } else if (hiddenLines[1].includes('RP2040')) {
                         this.PROCESSOR = 2040;
-                        this.is_NanoXRP = this.connection?.isNanoXRP() ?? false;
+                        this.is_NanoXRP = hiddenLines[1].includes('NanoXRP');
+                        this.connection?.setNanoXRP(this.is_NanoXRP);
                     }
                 }
                 if(hiddenLines[1].includes('XRP')){ //is this an XRP version of microPython?
@@ -253,7 +254,8 @@ export class CommandToXRPMgr {
         this.lastRun = undefined;
         this.HAS_MICROPYTHON = true;    // this is set after connection is successful
         this.is_NanoXRP = false;
-        
+        this.connection?.setNanoXRP(false);
+
         //get version information from the XRP
         const info = await this.getVersionInfo();