About nordic51822 pwm_library Settings

[creator]

Use the Nordic \ nRF5_SDK_12 _f012efa 2.0-3 d \ examples \ peripheral \ pwm_library routines, now can output two lines of PWM, but want to two way different PWM phase have what way? As shown in figure now is like this：

Want two road PWM phase diagram is different：

You can achieve?

Thank you very much looking forward to your reply

[Sigurd]

Hi,

If you want one of the signals to be low, when the other is high, you can switch the polarity:

/* 2-channel PWM, 200Hz, output on DK LED pins. */
app_pwm_config_t pwm1_cfg = APP_PWM_DEFAULT_CONFIG_2CH(5000L, 1,2);

/* Different polarity for the channels. */
pwm1_cfg.pin_polarity[0] = APP_PWM_POLARITY_ACTIVE_LOW;
pwm1_cfg.pin_polarity[1] = APP_PWM_POLARITY_ACTIVE_HIGH;