pin_PulseoutCount issue

[Lorenz]

Hello,
I'm driving stepper motors with a 43DT and I use the pin_PulseoutCount function to generate the acceleration, constant speed and deceleration.
I have a micro stop of the pulses during the deceleration (to be precise, it is around 600Hz). This micro stop doen't occur during acceleration (the programmes are the sames ...).
I managed to minimise this stop by sending 1 pulse @ 100Hz just before the pulses @ 600Hz but I still have a very small stop which is quite annoying for my project ...
Any help would be welcome !
Thanks !

[John Kevin]

Hi Lorenz,

Do you have any working code which we can test here? Just to check and see the issues you are having.

Thank you and Have a good day!

Best Regards,
Kevin

[Lorenz]

Hello Kevin,

Here is the code of the acceleration :

vitesse_inc starts @ 200
increment_vitesse = 20
inc_puls = 10
nb_boucl_acc_dec = 40

for (i:=0;i<=nb_boucl_acc_dec;i++) // Boucle de déplacement
mvt_suivant:=0;
pin_PulseoutCount(PA4,vitesse_inc, puls, MV_suivant); // Envoi TOP au Moteur Pap
vitesse_inc:= vitesse_inc+ increment_vitesse; // Augmentation vitesse
puls:=puls+ inc_puls; // Augmentation nb puls pour laisser environ le meme temps de stabilisation lors de l'ACC
while (mvt_suivant!=1) // attente Flag de fin de mouvement
wend
next

the code for deceleration :

vitesse_inc starts @ 1000
increment_vitesse = 20
inc_puls = 10
nb_boucl_acc_dec = 40

for (i:=0;i<=nb_boucl_acc_dec;i++) // Boucle de déplacement
mvt_suivant:=0;
if (vitesse_inc>=500 && vitesse_inc<800 )
txt_MoveCursor(4,30);
txt_Set(0,BLACK); // Couleur texte
print(vitesse_inc,"-"); // by printing the vitesse_inc, I reduce the steppers small stop @ 700-600Hz. I tried with a small delay of 3ms but it didn't work as well
endif
pin_PulseoutCount(PA4,vitesse_inc, puls, MV_suivant); // Gestion des pas
vitesse_inc:= vitesse_inc-increment_vitesse; // Augmentation vitesse
puls:=puls-inc_puls;
while (mvt_suivant!=1)
wend
next

func MV_suivant()
mvt_suivant:=1;
endfunc



I hope it can help you to get the issue (again, the small stop happens when pin_PulseoutCount speed decrease and reach 700Hz - 600Hz : I cannot says the exact frequence as as soon as I add a line code for debug, It affects the way the stepper is moving)
Last info, I use the 43DT alone with Visie genie.

Thanks for your help !

[John Kevin]

Hi Lorenz,

I have sent you a message on your e-mail. Thank you.

Best Regards,
Kevin