8000 esp8266: Add the methods duty_u16() and duty_ns() for consistency. · micropython/micropython@53591e0 · GitHub
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robert-hhrobert-hh
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esp8266: Add the methods duty_u16() and duty_ns() for consistency.
1 parent fb82d0c commit 53591e0

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2 files changed

+44
-8
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2 files changed

+44
-8
lines changed

‎ports/esp8266/machine_pwm.c

Lines changed: 43 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -53,10 +53,12 @@ STATIC void mp_machine_pwm_print(const mp_print_t *print, mp_obj_t self_in, mp_p
5353
}
5454

5555
STATIC void mp_machine_pwm_init_helper(machine_pwm_obj_t *self, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
56-
enum { ARG_freq, ARG_duty };
56+
enum { ARG_freq, ARG_duty, ARG_duty_u16, ARG_duty_ns };
5757
static const mp_arg_t allowed_args[] = {
5858
{ MP_QSTR_freq, MP_ARG_INT, {.u_int = -1} },
5959
{ MP_QSTR_duty, MP_ARG_INT, {.u_int = -1} },
60+
{ MP_QSTR_duty_u16, MP_ARG_INT, {.u_int = -1} },
61+
{ MP_QSTR_duty_ns, MP_ARG_INT, {.u_int = -1} },
6062
};
6163
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
6264
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
@@ -74,6 +76,15 @@ STATIC void mp_machine_pwm_init_helper(machine_pwm_obj_t *self, size_t n_args, c
7476
if (args[ARG_duty].u_int != -1) {
7577
pwm_set_duty(args[ARG_duty].u_int, self->channel);
7678
}
79+
if (args[ARG_duty_u16].u_int != -1) {
80+
pwm_set_duty(args[ARG_duty].u_int * 100 / 65536, self->channel);
81+
}
82+
if (args[ARG_duty_u16].u_int != -1) {
83+
uint32_t freq = pwm_get_freq(0);
84+
if (freq > 0) {
85+
pwm_set_duty(args[ARG_duty].u_int * freq / 10000000, self->channel);
86+
}
87+
}
7788

7889
if (pin_mode[self->pin->phys_port] == GPIO_MODE_OPEN_DRAIN) {
7990
mp_hal_pin_open_drain(self->pin->phys_port);
@@ -121,23 +132,47 @@ STATIC void mp_machine_pwm_freq_set(machine_pwm_obj_t *self, mp_int_t freq) {
121132
pwm_start();
122133
}
123134

124-
STATIC mp_obj_t mp_machine_pwm_duty_get(machine_pwm_obj_t *self) {
135+
STATIC void set_active(machine_pwm_obj_t *self, bool set_pin) {
125136
if (!self->active) {
126137
pwm_add(self->pin->phys_port, self->pin->periph, self->pin->func);
127138
self->active = 1;
128-
129-
if (pin_mode[self->pin->phys_port] == GPIO_ 8000 MODE_OPEN_DRAIN) {
139+
if (set_pin && pin_mode[self->pin->phys_port] == GPIO_MODE_OPEN_DRAIN) {
130140
mp_hal_pin_open_drain(self->pin->phys_port);
131141
}
132142
}
143+
}
144+
145+
STATIC mp_obj_t mp_machine_pwm_duty_get(machine_pwm_obj_t *self) {
146+
set_active(self, true);
133147
return MP_OBJ_NEW_SMALL_INT(pwm_get_duty(self->channel));
134148
}
135149

136150
STATIC void mp_machine_pwm_duty_set(machine_pwm_obj_t *self, mp_int_t duty) {
137-
if (!self->active) {
138-
pwm_add(self->pin->phys_port, self->pin->periph, self->pin->func);
139-
self->active = 1;
140-
}
151+
set_active(self, false);
141152
pwm_set_duty(duty, self->channel);
142153
pwm_start();
143154
}
155+
156+
STATIC mp_obj_t mp_machine_pwm_duty_get_u16(machine_pwm_obj_t *self) {
157+
set_active(self, true);
158+
return MP_OBJ_NEW_SMALL_INT(pwm_get_duty(self->channel) * 65536 / 1024);
159+
}
160+
161+
STATIC void mp_machine_pwm_duty_set_u16(machine_pwm_obj_t *self, mp_int_t duty) {
162+
set_active(self, false);
163+
pwm_set_duty(duty * 1024 / 65536, self->channel);
164+
pwm_start();
165+
}
166+
167+
STATIC mp_obj_t mp_machine_pwm_duty_get_ns(machine_pwm_obj_t *self) {
168+
set_active(self, true);
169+
uint32_t freq = pwm_get_freq(0);
170+
return MP_OBJ_NEW_SMALL_INT(pwm_get_duty(self->channel) * 976563 / freq);
171+
}
172+
173+
STATIC void mp_machine_pwm_duty_set_ns(machine_pwm_obj_t *self, mp_int_t duty) {
174+
set_active(self, false);
175+
uint32_t freq = pwm_get_freq(0);
176+
pwm_set_duty(duty * freq / 976562, self->channel); // 1e9/1024 = 976562.5
177+
pwm_start();
178+
}

‎ports/esp8266/mpconfigport.h

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -66,6 +66,7 @@
6666
#define MICROPY_PY_MACHINE_PWM (1)
6767
#define MICROPY_PY_MACHINE_PWM_INIT (1)
6868
#define MICROPY_PY_MACHINE_PWM_DUTY (1)
69+
#define MICROPY_PY_MACHINE_PWM_DUTY_U16_NS (1)
6970
#define MICROPY_PY_MACHINE_PWM_INCLUDEFILE "ports/esp8266/machine_pwm.c"
7071
#define MICROPY_PY_MACHINE_I2C (1)
7172
#define MICROPY_PY_MACHINE_SOFTI2C (1)

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