From d47004ef56bb31a096a15fb696b5058f30aac893 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Radim=20Karni=C5=A1?= <radim.karnis@espressif.com>
Date: Tue, 3 Dec 2024 15:13:45 +0100
Subject: [PATCH] fix(esp32-c6): Disable RTC WDT reset to prevent port
 disappearing

---
 esptool/targets/esp32c6.py | 6 ++++++
 esptool/targets/esp32h2.py | 1 +
 2 files changed, 7 insertions(+)

diff --git a/esptool/targets/esp32c6.py b/esptool/targets/esp32c6.py
index b4cb5d829..16b5531d1 100644
--- a/esptool/targets/esp32c6.py
+++ b/esptool/targets/esp32c6.py
@@ -6,6 +6,7 @@
 import struct
 
 from .esp32c3 import ESP32C3ROM
+from ..loader import ESPLoader
 from ..util import FatalError, NotImplementedInROMError
 
 
@@ -194,6 +195,11 @@ def check_spi_connection(self, spi_connection):
                 "consider using other pins for SPI flash connection."
             )
 
+    def hard_reset(self):
+        # Bug in the USB-Serial/JTAG controller can cause the port to disappear
+        # if the chip is reset with RTC WDT, do a classic reset
+        ESPLoader.hard_reset(self)
+
 
 class ESP32C6StubLoader(ESP32C6ROM):
     """Access class for ESP32C6 stub loader, runs on top of ROM.
diff --git a/esptool/targets/esp32h2.py b/esptool/targets/esp32h2.py
index 59604f2d6..65ea03751 100644
--- a/esptool/targets/esp32h2.py
+++ b/esptool/targets/esp32h2.py
@@ -80,6 +80,7 @@ def get_crystal_freq(self):
         return 32
 
     def hard_reset(self):
+        # RTC WDT reset not available, do a classic reset
         ESPLoader.hard_reset(self)
 
     def check_spi_connection(self, spi_connection):