ESP32 E (10309) task_wdt: Task watchdog got triggered. The following tasks did not reset the watchdo

ESP32，在开发时，在以下代码片中（功能很简单，定时改变PWM的Duty）：

// A code block
while (1)
    {
        for (int i = 0; i < 100; i++)
        {
            /* code */
            // Set duty to 50%
            ledc_set_duty(LEDC_MODE, LEDC_CHANNEL, i*40);
            // Update duty to apply the new value
            ledc_update_duty(LEDC_MODE, LEDC_CHANNEL);
            //delay 1ms
            usleep(1000);
        }
    }
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会报以下错误：E (115309) task_wdt: Task watchdog got triggered. The following tasks did not reset the watchdog in time:

E (115309) task_wdt: Task watchdog got triggered. The following tasks did not reset the watchdog in time:
E (115309) task_wdt:  - IDLE (CPU 0)
E (115309) task_wdt: Tasks currently running:
E (115309) task_wdt: CPU 0: main
E (115309) task_wdt: CPU 1: IDLE
E (115309) task_wdt: Print CPU 0 (current core) backtrace


Backtrace:0x400D7A87:0x3FFBE7400x40082B29:0x3FFBE760 0x40008544:0x3FFB2680 0x400D4D4E:0x3FFB26A0 0x400D4F66:0x3FFB26C0 0x400E60FF:0x3FFB26F0 0x40088115:0x3FFB2710 
0x400d7a87: task_wdt_isr at C:/Espressif/frameworks/esp-idf-v4.4.2/components/esp_system/task_wdt.c:183 (discriminator 3)

0x40082b29: _xt_lowint1 at C:/Espressif/frameworks/esp-idf-v4.4.2/components/freertos/port/xtensa/xtensa_vectors.S:1111

0x400d4d4e: usleep at C:/Espressif/frameworks/esp-idf-v4.4.2/components/newlib/time.c:210

0x400d4f66: app_main at G:/WorkingData/BoardFrame/SW/Code/main/boardframe.c:89 (discriminator 3)

0x400e60ff: main_task at C:/Espressif/frameworks/esp-idf-v4.4.2/components/freertos/port/port_common.c:141 (discriminator 2)

0x40088115: vPortTaskWrapper at C:/Espressif/frameworks/esp-idf-v4.4.2/components/freertos/port/xtensa/port.c:131


E (115309) task_wdt: Print CPU 1 backtrace


Backtrace:0x40084761:0x3FFBED400x40082B29:0x3FFBED60 0x4000BFED:0x3FFB3510 0x400883C6:0x3FFB3520 0x400D7CE4:0x3FFB3540 0x400D7CEF:0x3FFB3570 0x400D19A1:0x3FFB3590 0x40086BE6:0x3FFB35B0 0x40088115:0x3FFB35D0
0x40084761: esp_crosscore_isr at C:/Espressif/frameworks/esp-idf-v4.4.2/components/esp_system/crosscore_int.c:92

0x40082b29: _xt_lowint1 at C:/Espressif/frameworks/esp-idf-v4.4.2/components/freertos/port/xtensa/xtensa_vectors.S:1111

0x400883c6: vPortClearInterruptMaskFromISR at C:/Espressif/frameworks/esp-idf-v4.4.2/components/freertos/port/xtensa/include/freertos/portmacro.h:571
 (inlined by) vPortExitCritical at C:/Espressif/frameworks/esp-idf-v4.4.2/components/freertos/port/xtensa/port.c:319

0x400d7ce4: esp_task_wdt_reset at C:/Espressif/frameworks/esp-idf-v4.4.2/components/esp_system/task_wdt.c:330
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看了很多的帖子都是说没有及时喂狗导致的，实际是系统执行过程中无暇喂狗，只需要在死循环中添加适当延时即可，将上述代码中的delay延长，即可解决问题：

// A code block
while (1)
    {
        for (int i = 0; i < 100; i++)
        {
            /* code */
            // Set duty to 50%
            ledc_set_duty(LEDC_MODE, LEDC_CHANNEL, i*40);
            // Update duty to apply the new value
            ledc_update_duty(LEDC_MODE, LEDC_CHANNEL);
            //delay 10ms
            usleep(10000);
        }
    }
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亲测延迟到10ms及以上，就不会报watchdog的问题了，9ms还是会报watchdog的错

感谢：
Task watchdog got triggered错误