Are you enabling your driver ? You use BLDCDriver6PWM with only 6 parameters … not sure if you are enabling your driver.
// BLDCDriver6PWM( int phA_h, int phA_l, int phB_h, int phB_l, int phC_h, int phC_l, int en)
// - phA_h, phA_l - A phase pwm pin high/low pair
// - phB_h, phB_l - B phase pwm pin high/low pair
// - phB_h, phC_l - C phase pwm pin high/low pair
// - enable pin - (optional input)