Hallo
I am developing on a NRF51822, sdk12, s130,
I have encountered a repeated unexpected reset to my device (the reset reason vector register is all 0)
which seems to be triggered by app_pwm_channel_duty_set, when removing it anyway I do not encounter the reset.
I have used a scope to verify that there is no voltage drop during this event.
Although I am in DEBUG mode I do not reach the error handler to view the stack, so basically I have not idea from where exactly the reset comes from, I do not know how to further debug it.
Any help and suggestion will be very much appreciated
Thanks!
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This is the relevant code to my main suspects, the PWM
init :
APP_PWM_INSTANCE(PWM1, 1); // Create the instance "PWM1" using TIMER1.
APP_PWM_INSTANCE(PWM2, 2); // Create the instance "PWM2" using TIMER2.
app_pwm_config_t pwm1_cfg = APP_PWM_DEFAULT_CONFIG_2CH(100L, LED_RED, LED_GREEN);
app_pwm_config_t pwm2_cfg = APP_PWM_DEFAULT_CONFIG_1CH(100L, LED_BLUE);
pwm1_cfg.pin_polarity[0] = APP_PWM_POLARITY_ACTIVE_HIGH;
pwm1_cfg.pin_polarity[1] = APP_PWM_POLARITY_ACTIVE_HIGH;
pwm2_cfg.pin_polarity[0] = APP_PWM_POLARITY_ACTIVE_HIGH;
/* Initialize and enable PWM. */
err_code = app_pwm_init(&PWM1, &pwm1_cfg, pwm_ready_callback);
err_code = app_pwm_init(&PWM2, &pwm2_cfg, pwm_ready_callback);
operation :
while (app_pwm_channel_duty_set(&PWM1, 0, red) == NRF_ERROR_BUSY);
while (app_pwm_channel_duty_set(&PWM1, 1, green) == NRF_ERROR_BUSY);
while (app_pwm_channel_duty_set(&PWM2, 0, blue) == NRF_ERROR_BUSY);
