Fix connect after partial flash and PF progress

Author: microbit-matt-hillsdon

src/connection-stage-actions.ts

@@ -31,6 +31,7 @@ import { getHexFileUrl, HexType } from "./device/get-hex-file";
 import { HexUrl } from "./model";
 import { ConnectOptions } from "./store";
 import { downloadHex } from "./utils/fs-util";
+import { delay } from "./device/capacitor-ble/bluetooth";
 
 type FlowStage = Pick<ConnectionStage, "flowStep" | "flowType">;
 
@@ -170,6 +171,10 @@ export class ConnectionStageActions {
         // We'll be in Preparing at this point but from now on we want to just
         // connect/disconnect for accelerometer data.
         this.setStatus(ConnectionStatus.NotConnected);
+
+        // TODO: Tune delay.
+        // If we try to reconnect to soon then we'll time out as it'll still be booting at least in the PF case (DFU seemed OK).
+        await delay(2000);
         await this.connectBluetooth(false);
         return;
       }

src/device/capacitor-ble/flashing-partial.ts

@@ -117,11 +117,8 @@ const partialFlashInternal = async (
           } else {
             progress(
               FlashProgressStage.Partial,
-              Math.round(
-                ((offset - fileCodeRegion.start) /
-                  (fileCodeRegion.end - fileCodeRegion.start)) *
-                  100
-              )
+              (offset - fileCodeRegion.start) /
+                (fileCodeRegion.end - fileCodeRegion.start)
             );
           }
         }
@@ -132,7 +129,7 @@ const partialFlashInternal = async (
     await delay(100); // allow time for write to complete
     await pf.writeEndOfFlashPacket();
     await delay(100); // allow time for write to complete
-    progress(FlashProgressStage.Partial, 100);
+    progress(FlashProgressStage.Partial, 1);
 
     return PartialFlashResult.Success;
   } catch (e) {