3 Replies Latest reply on May 11, 2016 6:27 AM by Intel Corporation

    Intel Edison - 300mA current when PWM is enabled -


      I enabled PWM channel 3 of Intel Edison for a frequency of 10Khz and duty cycle of 50%. The Edison was powered from a DC source of 3.7V.

      After enabling the PWM current consumption went to 300mA from 60mA. Why the PWM module is taking too much current ? is this expected behavior ?


      echo mode1 > /sys/kernel/debug/gpio_debug/gpio183/current_pinmux
      echo 3 > /sys/class/pwm/pwmchip0/export
      echo 50000 > /sys/class/pwm/pwmchip0/pwm3/duty_cycle
      echo 100000 > /sys/class/pwm/pwmchip0/pwm3/period
      echo 1 > /sys/class/pwm/pwmchip0/pwm3/enable