From dbba9169dc3f97e248b50029e3a8f72c1904d287 Mon Sep 17 00:00:00 2001
From: hunjixin <1084400399@qq.com>
Date: Wed, 5 Apr 2023 18:18:12 +0800
Subject: [PATCH] fix:add dq reset

---
 owb_gpio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/owb_gpio.c b/owb_gpio.c
index e972711..0deca5e 100644
--- a/owb_gpio.c
+++ b/owb_gpio.c
@@ -105,6 +105,8 @@ static owb_status _reset(const OneWireBus * bus, bool * is_present)
 
     owb_gpio_driver_info *i = info_from_bus(bus);
 
+    gpio_set_level(i->gpio, 1);  // Reset DQ
+    _us_delay(bus->timing->A);
     gpio_set_direction(i->gpio, GPIO_MODE_OUTPUT);
     _us_delay(bus->timing->G);
     gpio_set_level(i->gpio, 0);  // Drive DQ low