There is a problem with the ESP32 timer, and there is no response when the program is downloaded

[mjkdz]

There is a problem with the ESP32 timer, and there is no response when the program is downloaded

/*

• ESP32共有4个定时器0-3。这些都是基于64位的通用定时器。
• 每个定时器都有一个16位预分频器（2-65536)以及可以自动
• 重新加载的 64 位递增/递减计数器
  /
  hw_timer_ttimer = NULL;//配置定时器我们需要一个指向hw_timer_t类型变量的指针
  volatile int led=2;
  volatile byte ZT =0;//volatile关键字说明我们需要在中断中修改这个变量
  void IRAM_ATTR kaiDS(){//定时器中断函数
  ZT=!ZT;
  digitalWrite(led,ZT);
  }

void setup() {
Serial.begin(115200);
pinMode(led, OUTPUT);

//设置定时器,0是定时器(4个定时器)80预分频器的值,true上升沿计数.false下降沿计数
timer=timerBegin(0,80,true);
//Timer指针变量,kaiDS触发中断执行函数,Timer 触发器与时钟同步true上升沿时触发定时器false当时钟信号改变电平时触发定时器
timerAttachInterrupt(timer,&kaiDS,true);
//Timer指针变量,1000000触发中断频率,true每次触发后自动重置定时器中断
timerAlarmWrite(timer,1000000,true);
timerAlarmEnable(timer);//启动定时器
}
void loop() {
}

[mjkdz]

The previous version is good

[VojtechBartoska]

@mjkdz Please can you rewrite your issue in English?

[VojtechBartoska]

@mjkdz Do you have any update to this issue? If not, I will close it in few days.