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TMS 320 define controller PWM control module



Hi TI Team,

i am configuring all the pwm channels(Channel A group and Channel B group) for controlling the stepper motors.

i am using 7 channels

PWM1A and PWM1B,

PWM2A and PWM2B,

PWM3A and PWM3B,

PWM4A and PWM4B,

PWM5A and PWM5B,

PWM6A and PWM6B,

PWM7A and PWM7B,

to control 14 stepper motors.

i am running all the motors simultaneously as per the my sequence cycle.

all the motors running simultaneously tlll 11 complete cycle , after that if i start pwm also, pwm interrupt is not generated, interrupt isr is not executing  and motors are not rotating.

Same Interrupt will for PWM1A and PWM1B.

my question is,  is there any limitation to use all the   pwm channels simultaneously?

Regards,

Ashwin