adc.h 4.9 KB

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  1. //*****************************************************************************
  2. //
  3. // adc.h
  4. //
  5. // Defines and Macros for the ADC.
  6. //
  7. // Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
  8. //
  9. //
  10. // Redistribution and use in source and binary forms, with or without
  11. // modification, are permitted provided that the following conditions
  12. // are met:
  13. //
  14. // Redistributions of source code must retain the above copyright
  15. // notice, this list of conditions and the following disclaimer.
  16. //
  17. // Redistributions in binary form must reproduce the above copyright
  18. // notice, this list of conditions and the following disclaimer in the
  19. // documentation and/or other materials provided with the
  20. // distribution.
  21. //
  22. // Neither the name of Texas Instruments Incorporated nor the names of
  23. // its contributors may be used to endorse or promote products derived
  24. // from this software without specific prior written permission.
  25. //
  26. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  27. // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  28. // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  29. // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  30. // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  31. // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  32. // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  33. // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  34. // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  35. // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  36. // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37. //
  38. //*****************************************************************************
  39. #ifndef __ADC_H__
  40. #define __ADC_H__
  41. //*****************************************************************************
  42. //
  43. // If building with a C++ compiler, make all of the definitions in this header
  44. // have a C binding.
  45. //
  46. //*****************************************************************************
  47. #ifdef __cplusplus
  48. extern "C"
  49. {
  50. #endif
  51. //*****************************************************************************
  52. // Values that can be passed to APIs as ulChannel parameter
  53. //*****************************************************************************
  54. #define ADC_CH_0 0x00000000
  55. #define ADC_CH_1 0x00000008
  56. #define ADC_CH_2 0x00000010
  57. #define ADC_CH_3 0x00000018
  58. //*****************************************************************************
  59. //
  60. // Values that can be passed to ADCIntEnable(), ADCIntDisable()
  61. // and ADCIntClear() as ulIntFlags, and returned from ADCIntStatus()
  62. //
  63. //*****************************************************************************
  64. #define ADC_DMA_DONE 0x00000010
  65. #define ADC_FIFO_OVERFLOW 0x00000008
  66. #define ADC_FIFO_UNDERFLOW 0x00000004
  67. #define ADC_FIFO_EMPTY 0x00000002
  68. #define ADC_FIFO_FULL 0x00000001
  69. //*****************************************************************************
  70. //
  71. // API Function prototypes
  72. //
  73. //*****************************************************************************
  74. extern void ADCEnable(unsigned long ulBase);
  75. extern void ADCDisable(unsigned long ulBase);
  76. extern void ADCChannelEnable(unsigned long ulBase,unsigned long ulChannel);
  77. extern void ADCChannelDisable(unsigned long ulBase,unsigned long ulChannel);
  78. extern void ADCIntRegister(unsigned long ulBase, unsigned long ulChannel,
  79. void (*pfnHandler)(void));
  80. extern void ADCIntUnregister(unsigned long ulBase, unsigned long ulChannel);
  81. extern void ADCIntEnable(unsigned long ulBase, unsigned long ulChannel,
  82. unsigned long ulIntFlags);
  83. extern void ADCIntDisable(unsigned long ulBase, unsigned long ulChannel,
  84. unsigned long ulIntFlags);
  85. extern unsigned long ADCIntStatus(unsigned long ulBase,unsigned long ulChannel);
  86. extern void ADCIntClear(unsigned long ulBase, unsigned long ulChannel,
  87. unsigned long ulIntFlags);
  88. extern void ADCDMAEnable(unsigned long ulBase, unsigned long ulChannel);
  89. extern void ADCDMADisable(unsigned long ulBase, unsigned long ulChannel);
  90. extern void ADCTimerConfig(unsigned long ulBase, unsigned long ulValue);
  91. extern void ADCTimerEnable(unsigned long ulBase);
  92. extern void ADCTimerDisable(unsigned long ulBase);
  93. extern void ADCTimerReset(unsigned long ulBase);
  94. extern unsigned long ADCTimerValueGet(unsigned long ulBase);
  95. extern unsigned char ADCFIFOLvlGet(unsigned long ulBase,
  96. unsigned long ulChannel);
  97. extern unsigned long ADCFIFORead(unsigned long ulBase,
  98. unsigned long ulChannel);
  99. //*****************************************************************************
  100. //
  101. // Mark the end of the C bindings section for C++ compilers.
  102. //
  103. //*****************************************************************************
  104. #ifdef __cplusplus
  105. }
  106. #endif
  107. #endif // __ADC_H__