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-rw-r--r--klippy/mcu.py5
-rw-r--r--src/gpiocmds.c18
2 files changed, 9 insertions, 14 deletions
diff --git a/klippy/mcu.py b/klippy/mcu.py
index e7c28a03..256c15f2 100644
--- a/klippy/mcu.py
+++ b/klippy/mcu.py
@@ -341,7 +341,7 @@ class MCU_pwm:
or self._shutdown_value not in [0., 1.]):
raise pins.error(
"start and shutdown values must be 0.0 or 1.0 on soft pwm")
- self._pwm_max = self._mcu.get_constant_float("SOFT_PWM_MAX")
+ self._pwm_max = float(cycle_ticks)
if self._is_static:
self._mcu.add_config_cmd("set_digital_out pin=%s value=%d" % (
self._pin, self._start_value >= 0.5))
@@ -354,7 +354,8 @@ class MCU_pwm:
self._start_value >= 0.5, self._shutdown_value >= 0.5,
self._mcu.seconds_to_clock(self._max_duration)))
self._set_cmd = self._mcu.lookup_command(
- "schedule_soft_pwm_out oid=%c clock=%u value=%hu", cq=cmd_queue)
+ "schedule_soft_pwm_out oid=%c clock=%u on_ticks=%u",
+ cq=cmd_queue)
def set_pwm(self, print_time, value):
clock = self._mcu.print_time_to_clock(print_time)
if self._invert:
diff --git a/src/gpiocmds.c b/src/gpiocmds.c
index 1d48a40e..91d97b75 100644
--- a/src/gpiocmds.c
+++ b/src/gpiocmds.c
@@ -106,9 +106,6 @@ DECL_COMMAND(command_set_digital_out, "set_digital_out pin=%u value=%c");
* Soft PWM output pins
****************************************************************/
-#define MAX_SOFT_PWM 256
-DECL_CONSTANT("SOFT_PWM_MAX", MAX_SOFT_PWM);
-
struct soft_pwm_s {
struct timer timer;
uint32_t on_duration, off_duration, end_time;
@@ -192,17 +189,14 @@ void
command_schedule_soft_pwm_out(uint32_t *args)
{
struct soft_pwm_s *s = oid_lookup(args[0], command_config_soft_pwm_out);
- uint32_t time = args[1];
- uint16_t value = args[2];
+ uint32_t time = args[1], next_on_duration = args[2], next_off_duration;
uint8_t next_flags = SPF_CHECK_END | SPF_HAVE_NEXT;
- uint32_t next_on_duration, next_off_duration;
- if (value == 0 || value >= MAX_SOFT_PWM) {
- next_on_duration = next_off_duration = 0;
- next_flags |= value ? SPF_NEXT_ON : 0;
- if (!!value != s->default_value && s->max_duration)
+ if (next_on_duration == 0 || next_on_duration >= s->cycle_time) {
+ next_flags |= next_on_duration ? SPF_NEXT_ON : 0;
+ if (!!next_on_duration != s->default_value && s->max_duration)
next_flags |= SPF_NEXT_CHECK_END;
+ next_on_duration = next_off_duration = 0;
} else {
- next_on_duration = (s->cycle_time / MAX_SOFT_PWM) * value;
next_off_duration = s->cycle_time - next_on_duration;
next_flags |= SPF_NEXT_ON | SPF_NEXT_TOGGLING;
if (s->max_duration)
@@ -227,7 +221,7 @@ command_schedule_soft_pwm_out(uint32_t *args)
irq_enable();
}
DECL_COMMAND(command_schedule_soft_pwm_out,
- "schedule_soft_pwm_out oid=%c clock=%u value=%hu");
+ "schedule_soft_pwm_out oid=%c clock=%u on_ticks=%u");
void
soft_pwm_shutdown(void)