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ZhangYiXiSucceedRbb666
ZhangYiXiSucceed
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Rbb666
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[bsp][gd32]:gd32vw553h-eval add wdt support (#11181)
* [bsp][gd32]:gd32vw553h-eval add wdt support * [bsp][gd32]:gd32vw553h-eval refine wdt and modify ai review * [bsp][gd32]:gd32vw553h-eval update code format --------- Co-authored-by: Rbb666 <64397326+Rbb666@users.noreply.github.com>
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3 files changed

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‎bsp/gd32/risc-v/gd32vw553h-eval/board/Kconfig‎

Lines changed: 21 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -107,7 +107,27 @@ menu "On-chip Peripheral Drivers"
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bool "Enable PWM16"
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default n
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endif
110-
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menuconfig BSP_USING_WDT
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bool "Enable WDT"
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default n
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if BSP_USING_WDT
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config BSP_USING_FWDT
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bool "Enable FWDT"
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default y
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config BSP_USING_WWDT
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bool "Enable WWDT"
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default n
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choice
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prompt "Select WDT type"
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default BSP_USING_FWDT
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config BSP_USING_FWDT
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bool "Enable FWDT"
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config BSP_USING_WWDT
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bool "Enable WWDT"
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endchoice
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endif
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111131
menuconfig BSP_USING_HW_I2C
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bool "Enable Hardware I2C"
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default n

‎bsp/gd32/risc-v/libraries/gd32_drivers/SConscript‎

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -33,7 +33,7 @@ if GetDepend('RT_USING_SFUD'):
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src += ['drv_spi_flash.c', 'drv_spi.c']
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# add wdt drivers.
36-
if GetDepend('RT_USING_WDT'):
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if GetDepend(['RT_USING_WDT', 'SOC_GD32VW553H']):
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src += ['drv_wdt.c']
3838

3939
# add rtc drivers.
@@ -52,6 +52,7 @@ if GetDepend('RT_USING_ADC'):
5252
if GetDepend(['RT_USING_PWM', 'SOC_GD32VW553H']):
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src += ['drv_pwm.c']
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55+
5556
path = [cwd]
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path += [cwd + "/config"]
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‎bsp/gd32/risc-v/libraries/gd32_drivers/drv_wdt.c‎

Lines changed: 181 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,181 @@
1+
/*
2+
* Copyright (c) 2006-2026, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
8+
* 2026-02-04 Yixizhang first version
9+
*/
10+
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#include <board.h>
12+
#include <rtthread.h>
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#ifdef RT_USING_WDT
14+
15+
#if defined(BSP_USING_FWDT)
16+
#define HW_WDGT_DEV_NAME "fwdgt"
17+
#elif defined(BSP_USING_WWDT)
18+
#define HW_WDGT_DEV_NAME "wwdgt"
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#endif
20+
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#define DBG_TAG "wdt"
22+
#define DBG_LVL DBG_LOG
23+
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#include <rtdbg.h>
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struct gd32_wdt_obj
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{
27+
rt_watchdog_t watchdog;
28+
rt_uint16_t is_start;
29+
};
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static struct gd32_wdt_obj gd32_wdt;
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static struct rt_watchdog_ops ops;
32+
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static rt_err_t wdt_init(rt_watchdog_t *wdt)
34+
{
35+
LOG_D("wdt init success.");
36+
return RT_EOK;
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}
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static rt_err_t wdt_control(rt_watchdog_t *wdt, int cmd, void *arg)
40+
{
41+
42+
rt_uint32_t time_sec;
43+
rt_uint32_t time_msec;
44+
rt_uint32_t wdgt_count;
45+
rt_uint32_t window_value;
46+
switch (cmd)
47+
{
48+
/* feed the watchdog */
49+
case RT_DEVICE_CTRL_WDT_KEEPALIVE:
50+
#if defined(BSP_USING_FWDT)
51+
fwdgt_counter_reload();
52+
#elif defined(BSP_USING_WWDT)
53+
wwdgt_counter_update(0x70);
54+
LOG_D("wdt update success.");
55+
#endif
56+
break;
57+
case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
58+
59+
#if defined(BSP_USING_FWDT)
60+
/* set timeout sec*/
61+
time_sec = *(rt_uint32_t*)arg;
62+
wdgt_count = 32*1000/32*time_sec;
63+
ErrStatus res = fwdgt_prescaler_value_config(FWDGT_PSC_DIV32);
64+
res = fwdgt_reload_value_config(wdgt_count);
65+
LOG_D("timeout=%d sec,count=%d res=%d ", time_sec, wdgt_count, res);
66+
#elif defined(BSP_USING_WWDT)
67+
/* set timeout ms */
68+
window_value = 0x7F;
69+
time_msec = *(rt_uint32_t*)arg;
70+
wdgt_count = (rt_uint32_t)((float)((float)1/0.78)*time_msec) + 0x3F;
71+
wwdgt_config(wdgt_count, window_value, WWDGT_CFG_PSC_DIV8);
72+
LOG_D("timeout=%d msec,count=%d ", time_msec, wdgt_count);
73+
#endif
74+
75+
break;
76+
case RT_DEVICE_CTRL_WDT_START:
77+
#if defined(BSP_USING_FWDT)
78+
fwdgt_enable();
79+
#elif defined(BSP_USING_WWDT)
80+
wwdgt_enable();
81+
#endif
82+
LOG_D("wdt control enable success.");
83+
break;
84+
default:
85+
LOG_W("This command is not supported.");
86+
return -RT_ERROR;
87+
}
88+
return RT_EOK;
89+
}
90+
91+
int rt_wdt_init(void)
92+
{
93+
rcu_periph_clock_enable(RCU_WWDGT);
94+
gd32_wdt.is_start = 0;
95+
ops.init = &wdt_init;
96+
ops.control = &wdt_control;
97+
gd32_wdt.watchdog.ops = &ops;
98+
/* register watchdog device */
99+
if (rt_hw_watchdog_register(&gd32_wdt.watchdog, HW_WDGT_DEV_NAME, RT_DEVICE_FLAG_DEACTIVATE, RT_NULL) != RT_EOK)
100+
{
101+
LOG_E("wdt device register failed.");
102+
return -RT_ERROR;
103+
}
104+
LOG_D(" wdt device register success.");
105+
return RT_EOK;
106+
}
107+
INIT_BOARD_EXPORT(rt_wdt_init);
108+
109+
#if defined(BSP_USING_FWDT)
110+
int fwdt_test_sample()
111+
{
112+
rt_err_t ret = RT_EOK;
113+
rt_device_t hw_dev = RT_NULL;
114+
rt_ubase_t time_out_sec = 4;
115+
hw_dev = rt_device_find(HW_WDGT_DEV_NAME);
116+
117+
LOG_D("find fwdt device success,device=%x",hw_dev);
118+
if (hw_dev == RT_NULL)
119+
{
120+
LOG_D("fwdt sample run failed! can't find %s device!", HW_WDGT_DEV_NAME);
121+
return -RT_ERROR;
122+
}
123+
ret = rt_device_open(hw_dev, RT_DEVICE_OFLAG_RDWR);
124+
LOG_D("open fwdt device success");
125+
if (ret != RT_EOK)
126+
{
127+
LOG_D("open %s device failed!", HW_WDGT_DEV_NAME);
128+
return ret;
129+
}
130+
131+
ret = rt_device_control(hw_dev, RT_DEVICE_CTRL_WDT_SET_TIMEOUT, &time_out_sec);
132+
if (ret != RT_EOK)
133+
{
134+
LOG_D("control %s device failed!", HW_WDGT_DEV_NAME);
135+
return ret;
136+
}
137+
rt_device_control(hw_dev, RT_DEVICE_CTRL_WDT_START, RT_NULL);
138+
rt_device_control(hw_dev, RT_DEVICE_CTRL_WDT_KEEPALIVE, RT_NULL);
139+
return ret;
140+
}
141+
142+
MSH_CMD_EXPORT(fwdt_test_sample, fwdt timeout 4 sec reset)
143+
144+
#elif defined(BSP_USING_WWDT)
145+
int wwdt_test_sample()
146+
{
147+
rt_err_t ret = RT_EOK;
148+
rt_device_t hw_dev = RT_NULL;
149+
rt_ubase_t time_out_msec = 40;
150+
hw_dev = rt_device_find(HW_WDGT_DEV_NAME);
151+
152+
LOG_D("find wwdt device success,device=%x",hw_dev);
153+
if (hw_dev == RT_NULL)
154+
{
155+
LOG_D("wwdt sample run failed! can't find %s device!", HW_WDGT_DEV_NAME);
156+
return -RT_ERROR;
157+
}
158+
ret = rt_device_open(hw_dev, RT_DEVICE_OFLAG_RDWR);
159+
LOG_D("open wwdt device success");
160+
if (ret != RT_EOK)
161+
{
162+
LOG_D("open %s device failed!", HW_WDGT_DEV_NAME);
163+
return ret;
164+
}
165+
166+
ret = rt_device_control(hw_dev, RT_DEVICE_CTRL_WDT_SET_TIMEOUT, &time_out_msec);
167+
if (ret != RT_EOK)
168+
{
169+
LOG_D("control %s device failed!", HW_WDGT_DEV_NAME);
170+
return ret;
171+
}
172+
rt_device_control(hw_dev, RT_DEVICE_CTRL_WDT_START, RT_NULL);
173+
rt_device_control(hw_dev, RT_DEVICE_CTRL_WDT_KEEPALIVE, RT_NULL);
174+
return ret;
175+
}
176+
177+
MSH_CMD_EXPORT(wwdt_test_sample, wwdt timeout 40 msec reset)
178+
#endif
179+
180+
#endif /* RT_USING_WDT */
181+

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