From 9a4d20fe7afbde36b7b5770e37fa9f95d84e3e9c Mon Sep 17 00:00:00 2001
From: Markus Kuhn <78373870+schwabix-1311@users.noreply.github.com>
Date: Sun, 26 Mar 2023 21:09:40 +0200
Subject: [PATCH 1/2] Issue #9

Add a delay to finalize handler
---
 tc420/__main__.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tc420/__main__.py b/tc420/__main__.py
index abb9e62..9c7a1aa 100644
--- a/tc420/__main__.py
+++ b/tc420/__main__.py
@@ -19,6 +19,7 @@
 from random import random, randint
 from datetime import datetime
 from typing import Callable, Tuple
+from time import sleep
 
 import click
 import usb.core
@@ -290,6 +291,7 @@ def finalize(ctx: Context, _):
     Finalize command chain
     """
     if ctx.obj.mode_stop_neded:
+        sleep(0.01)
         # Close mode commands
         print("Finalizing modes...", end=" ", flush=True)
         check_result(ctx.obj.dev.mode_stop())

From 90b4982baae7266a2a47652093986bf02f9d7ef6 Mon Sep 17 00:00:00 2001
From: Markus Kuhn <78373870+schwabix-1311@users.noreply.github.com>
Date: Sun, 26 Mar 2023 21:11:55 +0200
Subject: [PATCH 2/2] Update tc420.py

---
 tc420/tc420.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tc420/tc420.py b/tc420/tc420.py
index 9207d78..8deda04 100644
--- a/tc420/tc420.py
+++ b/tc420/tc420.py
@@ -19,6 +19,7 @@
 from datetime import datetime, time
 from struct import pack, unpack
 from time import time as timestamp
+from time import sleep
 import sys
 
 from threading import Thread
@@ -327,6 +328,9 @@ def send(self, packet: TC420Packet, check=True) -> bool:
             # It seems in case of error they just repeat the sent package from pos 2.
             res = res_pkt.data_len == 1 and res_pkt.data == self.OK
 
+        # give time for processing even though it returned success, issue #9
+        sleep(0.01)
+
         return res
 
     def time_sync(self, date: datetime = None) -> bool: