ARM CMSIS DSP PID Library - "state array" ?

[Deepdiver99 (Gast)]

Hallo!

Wozu wird in der Datenstruktur arm_pid_instance_f32 der 
ARM-CMSIS-DSP/PID Library das Feld "state[3]" benötigt?

typedef struct
  {
    float32_t A0;          /**< The derived gain, A0 = Kp + Ki + Kd . */
    float32_t A1;          /**< The derived gain, A1 = -Kp - 2Kd. */
    float32_t A2;          /**< The derived gain, A2 = Kd . */
    float32_t state[3];    /**< The state array of length 3. */
    float32_t Kp;               /**< The proportional gain. */
    float32_t Ki;               /**< The integral gain. */
    float32_t Kd;               /**< The derivative gain. */
  } arm_pid_instance_f32;

VG Deepdiver99

[Deepdiver99 (Gast)]

Hab es wohl schon selber raus gefunden. Im "state array" werden wohl die 
Werte zwischen gespeichert. :-)