About the PWM routines demo5 nrf52832 Settings?

[creator]

How do you do Now use E: \ Nordic \ nRF5_SDK_12 2.0 \ examples \ peripheral \ pwm_driver \ pca10040 demo5 pwm_driver routine There are two problems:

1. How to change the PWM duty cycle, he tried to such a change But no matter use, const nrf_pwm_values_individual_t / * * / seq_values [] = { {m_demo1_step | 0 x8000, 0, 0, 0}. {0, m_demo1_step | 0 x8000, 0, 0}. {0, 0, m_demo1_step | 0 x8000, 0}. {0, 0, 0, m_demo1_step | 0 x8000} };

2.About PWM pin configuration on the official 52832 development board, p0.00 p0.01 p0.06 cannot output PWM, PWM pins have restrictions can not every IO mouth?

[Sigurd]

Hi,

1. Did you change m_demo1_step ? The duty cycle will be the ratio between seq_value and .top_value.

2. Yes, Some GPIO pins on the nRF52-DK are used for other things, e.g. LF-Crystal(p0.00 p0.01), buttons, leds. Pin 9 and 10 are used for NFC by default. p0.06 is used by the UART. See this page for a drawing.