Start motor only when PWM value > 0. Use more power on startup.

esden · Mar 30, 2010 · 68e4dcc · 68e4dcc
1 parent fca528e
commit 68e4dcc
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Showing 2 changed files with 5 additions and 5 deletions.
diff --git a/bldc.c b/bldc.c
@@ -34,7 +34,7 @@ volatile uint16_t bldc_cnt_comm = 0;
 uint8_t bldc_pwm = 0;
 uint8_t bldc_pwm_max = PWM_MAX;
 uint8_t bldc_running = 0;
-uint8_t bldc_do_start = 1;
+uint8_t bldc_do_start = 0;
 uint16_t bldc_stop_detect_timer;
 uint8_t bldc_old_phase = 7;
 
@@ -162,7 +162,7 @@ void bldc_run(){
         }
 
         if(bldc_old_phase != bldc_phase){
-            bldc_stop_detect_timer = timer_new_sw(270);
+            bldc_stop_detect_timer = timer_new_sw(500);
             bldc_running = 1;
             bldc_old_phase = bldc_phase;
         }
@@ -171,7 +171,7 @@ void bldc_run(){
             LED_RED_ON();
             DISABLE_BEMF_INT();
             bldc_running = 0;
-            bldc_do_start = 1;
+            bldc_do_start = (bldc_pwm != 0);
             SET_ALL_OFF();
         }
 

diff --git a/settings.h b/settings.h
@@ -21,8 +21,8 @@
 
 #define SPEED_DEMO 0 /* Run a speed ramp demo */
 
-#define PWM_START 20 /* PWM to use for starting the motor */
-#define PWM_MIN 30 /* Minimum pwm so that the motor runs */
+#define PWM_START 40 /* PWM to use for starting the motor */
+#define PWM_MIN 40 /* Minimum pwm so that the motor runs */
 #define PWM_MAX 255 /* Maximal allowed pwm value (unsigned char) */
 
 #define BEMF_DEBOUNCE_COUNT 15 /* How many cycles to debounce the bemf signal */