Fix entering bootloaders using flow control.

.github/workflows/create-release.yml

@@ -52,7 +52,7 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version-file: 'package.json'
 
       - run: npm install -g oclif
 

README.md

@@ -76,7 +76,7 @@ $ npm install -g ember-zli
 $ ember-zli COMMAND
 running command...
 $ ember-zli (--version)
-ember-zli/2.7.0 win32-x64 node-v22.11.0
+ember-zli/2.8.0 win32-x64 node-v22.11.0
 $ ember-zli --help [COMMAND]
 USAGE
   $ ember-zli COMMAND
@@ -108,7 +108,7 @@ EXAMPLES
   $ ember-zli bootloader
 ```
 
-_See code: [src/commands/bootloader/index.ts](https://github.com/Nerivec/ember-zli/blob/v2.7.0/src/commands/bootloader/index.ts)_
+_See code: [src/commands/bootloader/index.ts](https://github.com/Nerivec/ember-zli/blob/v2.8.0/src/commands/bootloader/index.ts)_
 
 ## `ember-zli help [COMMAND]`
 
@@ -145,7 +145,7 @@ EXAMPLES
   $ ember-zli router
 ```
 
-_See code: [src/commands/router/index.ts](https://github.com/Nerivec/ember-zli/blob/v2.7.0/src/commands/router/index.ts)_
+_See code: [src/commands/router/index.ts](https://github.com/Nerivec/ember-zli/blob/v2.8.0/src/commands/router/index.ts)_
 
 ## `ember-zli sniff`
 
@@ -162,7 +162,7 @@ EXAMPLES
   $ ember-zli sniff
 ```
 
-_See code: [src/commands/sniff/index.ts](https://github.com/Nerivec/ember-zli/blob/v2.7.0/src/commands/sniff/index.ts)_
+_See code: [src/commands/sniff/index.ts](https://github.com/Nerivec/ember-zli/blob/v2.8.0/src/commands/sniff/index.ts)_
 
 ## `ember-zli stack`
 
@@ -179,7 +179,7 @@ EXAMPLES
   $ ember-zli stack
 ```
 
-_See code: [src/commands/stack/index.ts](https://github.com/Nerivec/ember-zli/blob/v2.7.0/src/commands/stack/index.ts)_
+_See code: [src/commands/stack/index.ts](https://github.com/Nerivec/ember-zli/blob/v2.8.0/src/commands/stack/index.ts)_
 
 ## `ember-zli utils`
 
@@ -196,7 +196,7 @@ EXAMPLES
   $ ember-zli utils
 ```
 
-_See code: [src/commands/utils/index.ts](https://github.com/Nerivec/ember-zli/blob/v2.7.0/src/commands/utils/index.ts)_
+_See code: [src/commands/utils/index.ts](https://github.com/Nerivec/ember-zli/blob/v2.8.0/src/commands/utils/index.ts)_
 
 ## `ember-zli version`
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "ember-zli",
   "description": "Interact with EmberZNet-based adapters using zigbee-herdsman 'ember' driver",
-  "version": "2.7.0",
+  "version": "2.8.0",
   "author": "Nerivec",
   "bin": {
     "ember-zli": "bin/run.js"
@@ -37,7 +37,7 @@
     "typescript-eslint": "^8"
   },
   "engines": {
-    "node": ">=20.0.0"
+    "node": ">=20.15.0"
   },
   "files": [
     "/bin",

src/utils/bootloader.ts

@@ -1,9 +1,9 @@
 import type { AdapterModel, FirmwareFileMetadata, PortConf } from './types.js'
 
 import EventEmitter from 'node:events'
+import { crc32 } from 'zlib'
 
 import { confirm } from '@inquirer/prompts'
-import {crc32} from 'zlib'
 
 import { SLStatus } from 'zigbee-herdsman/dist/adapter/ember/enums.js'
 
@@ -394,9 +394,18 @@ export class GeckoBootloader extends EventEmitter<GeckoBootloaderEventMap> {
             return
         }
 
-        await this.transport.write(BOOTLOADER_KNOCK)
+        let res: boolean = false
 
-        const res = await this.waitForState(BootloaderState.IDLE, BOOTLOADER_KNOCK_TIMEOUT, fail)
+        for (let i = 1; i < 3; i++) {
+            await this.transport.write(BOOTLOADER_KNOCK)
+
+            res = await this.waitForState(BootloaderState.IDLE, BOOTLOADER_KNOCK_TIMEOUT, fail && i == 2)
+
+            if (!res && i == 1 && this.transport.isSerial) {
+                // if failed first attempt, try second time with RTS/CTS enabled
+                await this.transport.serialSet({ rts: true, cts: true })
+            }
+        }
 
         if (!res) {
             await this.transport.close(fail) // emit closed based on if we want to fail on unsuccessful knock