عکس nimaltd
AC power meter based on STM32 ADCC
موضوع‌ها
۰
فورک‌ها
۱
ستاره‌ها
۱۰
تاریخ ایجاد
۲۷ دی ۱۳۹۹
آخرین بروزرسانی
۵ ماه قبل
لایسنس
GNU General Public License v3.0

power meter

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(); } }