gd32303用ENV加入看门狗会出现invalid param@..

发布于 2022-07-23 10:29:48 浏览：422 订阅该版

```c

static rt_err_t gd32_wdt_control(rt_watchdog_t *wdt, int cmd, void *arg)
{
    rt_uint32_t param;
    g_wdt_dev.min_threshold_s = 1; 
    g_wdt_dev.max_threshold_s = (0xfff << 8) / 40000;
	//直接把gd32_wdt_init的赋值操作写到这里就解决报错了
    switch (cmd)
    {
    case RT_DEVICE_CTRL_WDT_KEEPALIVE:
        fwdgt_counter_reload();
        break;
    case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
        param = *(rt_uint32_t *) arg;
        if ((param > g_wdt_dev.max_threshold_s) || \
            (param < g_wdt_dev.min_threshold_s))
        {
            LOG_E("invalid param@%u.", param);
            return -RT_EINVAL;
        }
        else
        {
            g_wdt_dev.current_threshold_s = param;
        }
        fwdgt_write_enable();
        fwdgt_config(param * 40000 >> 8, FWDGT_PSC_DIV256);
        fwdgt_write_disable();
        break;
    case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
        *(rt_uint32_t *)arg = g_wdt_dev.current_threshold_s;
        break;
    case RT_DEVICE_CTRL_WDT_START:
        fwdgt_enable();
        break;
    default:
        LOG_W("This command is not supported.");
        return -RT_ERROR;
    }

return RT_EOK;
}
```
发现是没有执行gd32_wdt_init，所以没对这两个参数赋值，
http://t.csdn.cn/uDp3b