78 lines
2.2 KiB
Plaintext
78 lines
2.2 KiB
Plaintext
#include <zephyr/dt-bindings/gpio/gpio.h>
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#include <zephyr/dt-bindings/pwm/pwm.h>
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#include <zephyr/dt-bindings/pwm/stm32_pwm.h>
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/ {
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aliases {
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encoder-c1 = &encoder_c1;
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encoder-c2 = &encoder_c2;
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motor-bin1-pwm = &motor_bin1_pwm;
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motor-bin2-pwm = &motor_bin2_pwm;
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motor-flt = &motor_flt;
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motor-slp = &motor_slp;
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fault-test-button = &fault_test_button;
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};
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buttons {
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compatible = "gpio-keys";
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encoder_c1: encoder_c1 {
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gpios = <&gpiob 7 GPIO_ACTIVE_HIGH>; /* D4, PB7 */
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label = "Encoder C1";
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};
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encoder_c2: encoder_c2 {
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gpios = <&gpiob 6 GPIO_ACTIVE_HIGH>; /* D5, PB6 */
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label = "Encoder C2";
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};
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motor_flt: motor_flt {
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gpios = <&gpioa 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* A0, PA0 */
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label = "Motor fault";
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};
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fault_test_button: fault_test_button {
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gpios = <&gpiob 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* D3, PB0 */
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label = "Fault test button";
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};
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};
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motor_gpio_outputs {
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compatible = "gpio-leds";
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motor_slp: motor_slp {
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gpios = <&gpioa 1 GPIO_ACTIVE_HIGH>; /* A1, PA1 */
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label = "Motor sleep";
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};
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};
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motor_pwm_outputs {
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compatible = "pwm-leds";
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motor_bin1_pwm: motor_bin1_pwm {
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pwms = <&pwm1 1 PWM_USEC(50) 0>; /* D9, PA8; 20 kHz */
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label = "Motor BIN1 PWM";
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};
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/* PB1 has no regular TIM1 channel, only the complementary output
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* TIM1_CH3N. With CH3 itself disabled, CH3N outputs the
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* non-inverted CH3 reference, so it behaves like a normal channel. */
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motor_bin2_pwm: motor_bin2_pwm {
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pwms = <&pwm1 3 PWM_USEC(50) (PWM_POLARITY_NORMAL | STM32_PWM_COMPLEMENTARY)>; /* D6, PB1; 20 kHz */
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label = "Motor BIN2 PWM";
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};
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};
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};
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&timers1 {
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status = "okay";
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/* No prescaler: 80 MHz timer clock, so a 50 us period is 4000 counts. */
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st,prescaler = <0>;
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pwm1: pwm {
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status = "okay";
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pinctrl-0 = <&tim1_ch1_pa8 &tim1_ch3n_pb1>;
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pinctrl-names = "default";
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};
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}; |