Simon Ford / dsp

CMSIS DSP Library from CMSIS 2.0. See http://www.onarm.com/cmsis/ for full details

Dependents:   K22F_DSP_Matrix_least_square BNO055-ELEC3810 1BNO055 ECE4180Project--Slave2 ... more

src/Cortex-M4-M3/ControllerFunctions/arm_pid_reset_q31.c@0:1014af42efd9, 2011-03-10 (annotated)

Committer:
simon
Date:
Thu Mar 10 15:07:50 2011 +0000
Revision:
0:1014af42efd9

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


simon

0:1014af42efd9


     1

/* ----------------------------------------------------------------------  





simon

0:1014af42efd9


     2

* Copyright (C) 2010 ARM Limited. All rights reserved.  





simon

0:1014af42efd9


     3

*  





simon

0:1014af42efd9


     4

* $Date:        29. November 2010  





simon

0:1014af42efd9


     5

* $Revision: 	V1.0.3  





simon

0:1014af42efd9


     6

*  





simon

0:1014af42efd9


     7

* Project: 	    CMSIS DSP Library  





simon

0:1014af42efd9


     8

* Title:	    arm_pid_reset_q31.c  





simon

0:1014af42efd9


     9

*  





simon

0:1014af42efd9


    10

* Description:	Q31 PID Control reset function 





simon

0:1014af42efd9


    11

*  





simon

0:1014af42efd9


    12

* Target Processor: Cortex-M4/Cortex-M3





simon

0:1014af42efd9


    13

*  





simon

0:1014af42efd9


    14

* Version 1.0.3 2010/11/29 





simon

0:1014af42efd9


    15

*    Re-organized the CMSIS folders and updated documentation.  





simon

0:1014af42efd9


    16

*   





simon

0:1014af42efd9


    17

* Version 1.0.2 2010/11/11  





simon

0:1014af42efd9


    18

*    Documentation updated.   





simon

0:1014af42efd9


    19

*  





simon

0:1014af42efd9


    20

* Version 1.0.1 2010/10/05   





simon

0:1014af42efd9


    21

*    Production release and review comments incorporated.  





simon

0:1014af42efd9


    22

*  





simon

0:1014af42efd9


    23

* Version 1.0.0 2010/09/20   





simon

0:1014af42efd9


    24

*    Production release and review comments incorporated.  





simon

0:1014af42efd9


    25

* ------------------------------------------------------------------- */ 





simon

0:1014af42efd9


    26

 





simon

0:1014af42efd9


    27

#include "arm_math.h" 





simon

0:1014af42efd9


    28

 





simon

0:1014af42efd9


    29

 /**  





simon

0:1014af42efd9


    30

 * @addtogroup PID  





simon

0:1014af42efd9


    31

 * @{  





simon

0:1014af42efd9


    32

 */ 





simon

0:1014af42efd9


    33

 





simon

0:1014af42efd9


    34

/**  





simon

0:1014af42efd9


    35

* @brief  Reset function for the Q31 PID Control. 





simon

0:1014af42efd9


    36

* @param[in] *S	Instance pointer of PID control data structure. 





simon

0:1014af42efd9


    37

* @return none.  





simon

0:1014af42efd9


    38

* \par Description: 





simon

0:1014af42efd9


    39

* The function resets the state buffer to zeros.  





simon

0:1014af42efd9


    40

*/ 





simon

0:1014af42efd9


    41

void arm_pid_reset_q31( 





simon

0:1014af42efd9


    42

  arm_pid_instance_q31 * S) 





simon

0:1014af42efd9


    43

{ 





simon

0:1014af42efd9


    44

 





simon

0:1014af42efd9


    45

  /* Clear the state buffer.  The size will be always 3 samples */ 





simon

0:1014af42efd9


    46

  memset(S->state, 0, 3u * sizeof(q31_t));  





simon

0:1014af42efd9


    47

} 





simon

0:1014af42efd9


    48

 





simon

0:1014af42efd9


    49

/**  





simon

0:1014af42efd9


    50

 * @} end of PID group  





simon

0:1014af42efd9


    51

 */