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A bundled STM32F10x Std Periph and CMSIS library
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STM32F10x_Std_Lib/CMSIS/DSP_Lib/Source/ControllerFunctions/arm_pid_reset_q15.c

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  1. /* ----------------------------------------------------------------------    

  2. * Copyright (C) 2010-2014 ARM Limited. All rights reserved.    

  3. *    

  4. * $Date:        12. March 2014

  5. * $Revision: 	V1.4.4

  6. *    

  7. * Project: 	    CMSIS DSP Library    

  8. * Title:	    arm_pid_reset_q15.c    

  9. *    

  10. * Description:	Q15 PID Control reset function   

  11. *    

  12. * Target Processor: Cortex-M4/Cortex-M3/Cortex-M0

  13. *  

  14. * Redistribution and use in source and binary forms, with or without 

  15. * modification, are permitted provided that the following conditions

  16. * are met:

  17. *   - Redistributions of source code must retain the above copyright

  18. *     notice, this list of conditions and the following disclaimer.

  19. *   - Redistributions in binary form must reproduce the above copyright

  20. *     notice, this list of conditions and the following disclaimer in

  21. *     the documentation and/or other materials provided with the 

  22. *     distribution.

  23. *   - Neither the name of ARM LIMITED nor the names of its contributors

  24. *     may be used to endorse or promote products derived from this

  25. *     software without specific prior written permission.

  26. *

  27. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

  28. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

  29. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS

  30. * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 

  31. * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,

  32. * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,

  33. * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

  34. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

  35. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

  36. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

  37. * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

  38. * POSSIBILITY OF SUCH DAMAGE. 

  39. * -------------------------------------------------------------------- */

  40. 

  41. #include "arm_math.h"

  42. 

  43.  /**    

  44.  * @addtogroup PID    

  45.  * @{    

  46.  */

  47. 

  48. /**    

  49. * @brief  Reset function for the Q15 PID Control.   

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

  51. * @return none.    

  52. * \par Description:   

  53. * The function resets the state buffer to zeros.    

  54. */

  55. void arm_pid_reset_q15(

  56.   arm_pid_instance_q15 * S)

  57. {

  58.   /* Reset state to zero, The size will be always 3 samples */

  59.   memset(S->state, 0, 3u * sizeof(q15_t));

  60. }

  61. 

  62. /**    

  63.  * @} end of PID group    

  64.  */