pmeter's Introduction

power meter

Author: Nima Askari
WebSite: https://www.github.com/NimaLTD
Instagram: https://www.instagram.com/github.NimaLTD
LinkedIn: https://www.linkedin.com/in/NimaLTD
Youtube: https://www.youtube.com/channel/UCUhY7qY1klJm1d2kulr9ckw

AC power meter based on STM32 ADC

Setlect a ADC and enable 2 channel, v and i.
Set number of conversion to 2.
Set enable scan conversion.
Set disable continous conversion.
Set disable discontinous conversion.
Set disable DMA continous conversion.
Set end of single conversion.
Select trigger out event a timer for external trigger.
Select trigger rising edge.
Select both ranks with correct channel.
Set enable DMA normal mode.
Set internal clock for selected timer.
Set update event on trigger evnet selection on timer configuration menu.
Add library on project.
Configure "pmeterConfig.h".
Put "pmeter_callback()" in adc dma callback.
Call "pmeter_init(timer freq: ex:32, calibration data from eeprom)".
Put "pmeter_loop()" in infinite loop.
before using, you should be calibrate.
Call "pmeter_calib_step1_..." to "pmeter_calib_step4_..." and store the calibration data "pmeter.calib".

void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef *hadc)
{
  pmeter_callback();
}

void main()
{
  pmeter_calib_t calib;
  ...
  // load calibration data from eeprom to calib struct
  ...
  pmeter_init(32, calib);
  while(1)
  {
    pmeter_loop();
  }
}

Recommend Projects