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-rw-r--r--tube-rotator/stepper.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/tube-rotator/stepper.c b/tube-rotator/stepper.c
index 84bd666..3a08cd4 100644
--- a/tube-rotator/stepper.c
+++ b/tube-rotator/stepper.c
@@ -132,7 +132,12 @@ uint16_t stepper_get_speed(void)
return target_speed;
}
-uint16_t stepper_get_speed_rpm(void)
+void stepper_set_speed_rpm(uint8_t new_rpm)
{
- return (uint16_t)lround( ( (double)F_CPU / (double)(64.0 * 800.0 * (double)(target_speed + 1) ) ) * 60.0 );
+ stepper_set_speed(( (uint16_t)( (double)(60.0 * F_CPU) / (double)(64.0 * 800.0 * (double)new_rpm) ) ) - 1);
+}
+
+uint8_t stepper_get_speed_rpm(void)
+{
+ return (uint8_t)lround( ( (double)F_CPU / (double)(64.0 * 800.0 * (double)(target_speed + 1) ) ) * 60.0 );
}