获取芯片基本信息,包括了芯片的id物理地址、版本、运行频率等 uint8_t getChipRevision(); uint32_t getCpuFreqMHz(){returngetCpuFrequencyMhz(); } inline uint32_t getCycleCount() __attribute__((always_inline));constchar*getSdkVersion(); uint64_t getEfuseMac(); 例子: 1#include <Arduino.h>...
uint32_t apbf = getApbFrequency(); // In Hz Serial.printf("cpuf:%d, xtal:%d, apbf:%d\n", cpuf, xtal, apbf); delay(1000); setCpuFrequencyMhz(160); Serial.printf("cpuf:%d, xtal:%d, apbf:%d\n", getCpuFrequencyMhz(), getXtalFrequencyMhz(), getApbFrequency()); delay(1000)...
#include"esp32-hal-cpu.h"voidsetup(Serial.begin(115200);setCpuFrequencyMhz(240);Serial.println(getCpuFrequencyMhz());) 2.启用多核 多核的启用使用freertos来实现。esp32的xtensa芯片一共有两个核心,arduino ide默认使用核心1,核心0是空闲的。通过freertos直接指定核心可以将任务...
uint32_t getCpuFrequencyMhz(); // In MHz uint32_t getXtalFrequencyMhz(); // In MHz uint32_t getApbFrequency(); // In Hz 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 通过上位机 看出默认的时钟信号频率 说明CPU_CLK选取内部PLL_CLK为时钟源480MHz 然后二分频 所以APB就为80MHz...
frommachineimportPin,PWM pwm0=PWM(Pin(0))# create PWM object from a pinfreq=pwm0.freq()# get current frequency (default 5kHz)pwm0.freq(1000)# set PWM frequency from 1Hz to 40MHzduty=pwm0.duty()# get current duty cycle, range 0-1023 (default 512, 50%)pwm0.duty(256)# set duty...
I would like to set the CPU frequency of my ESP32 custom board under 80Mhz for lowering power consumption. I'm using the PlatformIO IDE with Arduino framework. I tried the setCpuFrequencyMhz() function but getCpuFrequencyMhz() always returns 240Mhz whatever I set with setCpuFrequencyMhz()....
ets_get_cpu_frequency : 240 before gettick : 884583000 after gettick : 887201000 As I set the CPU frequency to be 240MHz, why the processing speed seems to be in kHz? I printf direct inside the app_main(), and the 2 lines of "gettick" are the continuous 2 lines of codes. 2-3ms ...
CPU Frequency (160 MHz) ---> ( ) 80 MHz ( ) 160 MHz (X) 240 MHz 选择双核模式 ESP32 默认运行双核模式,如需使用单核模式可通过如下操作设置为单核模式。 Components Configs ---> FreeRTOS ---> Kernel ---> [*] Run FreeRTOS only on first core ...
CPU si elle est <80Mhzdelay(500);//Freq =getCpuFrequencyMhz(); Serial.print("CPU Freq ="); Serial.print(Freq); Serial.println("MHz"); Freq =getXtalFrequencyMhz(); Serial.print("XTAL Freq ="); Serial.print(Freq); Serial.println("MHz"); Freq =getApbFrequency(); Serial.print("...
vTaskDelay(10);//直接延迟10个时钟周期//用下面的函数可以完成恒定频率的任务constTickType_t xFrequency=10;TickType_t xLastWakeTime=xTaskGetTickCount();//获取当前系统时间while(1)vTaskDelayUntil(&xLastWakeTime,xFrequency);//重复xFrequency延迟 ...