hw_timer_t * timerBegin(uint8_t num, uint16_t divider, bool countUp);复制代码 参数num为定时器编号，0到3，对应4个硬件通用定时器；参数divider为预分频系数；参数countUp为计数器计数方向标志，true：向上计数；false：向下计数 返回值：定时器结构体指针 第二个函数：t
hw_timer_t * timerBegin(uint8_t timer, uint16_t divider, bool countUp); 其三个参数是: 定时器x (一共4个,0-3) 分频数(基础时钟80MHZ,分频最大值为65536) 第三个是向上或向下计数标志 //然后我们用刚才定义的指针接收以下: timer = timerBegin(0,80,true); 1. 2. 3. 4. 5. 6. 7. ...
通常为80分频(设置APB时钟,ESP32主频80MHz),80则时间单位为1Mhz即1us,1000000us即1s。 countUp指定定时器是否为向上计数模式。设置为ture为向上计数,false为向下计数。 2.1.2 关联中断处理函数 void timerAttachInterrupt(hw_timer_t *timer, void (*fn)(void), bool edge) 1. timer指向已初始化的定时器指针...
MsTimer2::start(); //开始计时CarStop();IOInit();}void loop(){sys_status = 1; //系统启动if(sys_status == 1){SearchRun();}else{ctrl_comm = COMM_STOP;}//do somethingif(ctrl_comm_last != ctrl_comm)//指令有变化{ctrl_comm_last = ctrl_comm;switch(ctrl_comm){case COMM_UP: ...
ESP32 芯片包含两个硬件定时器组。每组有两个通用硬件定时器。它们都是基于 16 位预分频器和 64 位自动重载功能的向上/向下计数器的 64 位通用定时器。hw_timer_t * timerBegin(uint8_t num, uint16_t divider, bool countUp){} 参数:返回值: 返回一个计时器结构体指针 hw_timer_t * ...
You must use // 38400 or slower in these cases, or use some kind of external separate // crystal solution for the UART timer. // initialize device Serial.println(F("Initializing I2C devices...")); mpu.initialize(); pinMode(INTERRUPT_PIN, INPUT); // verify connection Serial.println(F(...
TIMSK0 = 0x00; OCR0A = 248; // 最大计数值 = CTC 除以 250 = 1mS GTCCR = 0x02;// 重置预分频器 FC_overflowCount = 0; 位集(TIMSK0,OCIE0A);// 启用 Timer0 中断 中断(); } //=== === // FC_InitAC // ACfreqAdcPin = 0..5 - 使用该 ADC 多路复用器并使用 Timer1 测量周...
println("count = 2, get view and likes"); getViewAndLikes(viewAndLikesUrl); flag = false; } } } void timerCallback() { count++; if (count == 3) { count = 0; } flag = true; } 我们使用了 ESP32 和 ESP8266 自带的定时器库 Ticker。设置一个 count 变量,根据 count = 0、1、...
static sc_timer_service_t timer_service; static sc_timer_t timers[MAX_TIMERS]; //! callback implementation for the setting up time events void lightCtrl_setTimer(LightCtrl* handle, const sc_eventid evid, const sc_integer time_ms, const sc_boolean periodic){ ...
Any pin can be used for receiving and if SEND_PWM_BY_TIMER is not defined also for sending. Feedback LED can be activated for sending / receiving. An 8/16 bit **command value as well as an 16 bit address and a protocol number is provided for decoding (instead of the old 32 bit ...