ch32v30x_misc.h 3.9 KB

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  1. /********************************** (C) COPYRIGHT *******************************
  2. * File Name : ch32v30x_misc.h
  3. * Author : WCH
  4. * Version : V1.0.0
  5. * Date : 2024/03/06
  6. * Description : This file contains all the functions prototypes for the
  7. * miscellaneous firmware library functions.
  8. *********************************************************************************
  9. * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
  10. * Attention: This software (modified or not) and binary are used for
  11. * microcontroller manufactured by Nanjing Qinheng Microelectronics.
  12. *******************************************************************************/
  13. #ifndef __CH32V30X_MISC_H
  14. #define __CH32V30X_MISC_H
  15. #ifdef __cplusplus
  16. extern "C" {
  17. #endif
  18. #include "ch32v30x.h"
  19. /* CSR_INTSYSCR_INEST_definition */
  20. #define INTSYSCR_INEST_NoEN 0x00 /* interrupt nesting disable(CSR-0x804 bit1 = 0) */
  21. #define INTSYSCR_INEST_EN_2Level 0x01 /* interrupt nesting enable-2 Level(CSR-0x804 bit1 = 1 bit[3:2] = 1) */
  22. #define INTSYSCR_INEST_EN_4Level 0x02 /* interrupt nesting enable-4 Level(CSR-0x804 bit1 = 1 bit[3:2] = 2) */
  23. #define INTSYSCR_INEST_EN_8Level 0x03 /* interrupt nesting enable-8 Level(CSR-0x804 bit1 = 1 bit[3:2] = 3) */
  24. /* Check the configuration of CSR(0x804) in the startup file(.S)
  25. * interrupt nesting enable-8 Level(CSR-0x804 bit1 = 1 bit[3:2] = 3)
  26. * priority - bit[7:5] - Preemption Priority
  27. * bit[4:0] - Reserve
  28. * interrupt nesting enable-4 Level(CSR-0x804 bit1 = 1 bit[3:2] = 2)
  29. * priority - bit[7:6] - Preemption Priority
  30. * bit[5] - Sub priority
  31. * bit[4:0] - Reserve
  32. * interrupt nesting enable-2 Level(CSR-0x804 bit1 = 1 bit[3:2] = 1)
  33. * priority - bit[7] - Preemption Priority
  34. * bit[6:5] - Sub priority
  35. * bit[4:0] - Reserve
  36. * interrupt nesting disable(CSR-0x804 bit1 = 0)
  37. * priority - bit[7:5] - Sub priority
  38. * bit[4:0] - Reserve
  39. */
  40. #ifndef INTSYSCR_INEST
  41. #define INTSYSCR_INEST INTSYSCR_INEST_EN_4Level
  42. #endif
  43. /* NVIC Init Structure definition
  44. * interrupt nesting disable(CSR-0x804 bit1 = 0)
  45. * NVIC_IRQChannelPreemptionPriority - range is 0.
  46. * NVIC_IRQChannelSubPriority - range from 0 to 7.
  47. *
  48. * interrupt nesting enable-2 Level(CSR-0x804 bit1 = 1 bit[3:2] = 1)
  49. * NVIC_IRQChannelPreemptionPriority - range from 0 to 1.
  50. * NVIC_IRQChannelSubPriority - range from 0 to 3.
  51. *
  52. * interrupt nesting enable-4 Level(CSR-0x804 bit1 = 1 bit[3:2] = 2)
  53. * NVIC_IRQChannelPreemptionPriority - range from 0 to 3.
  54. * NVIC_IRQChannelSubPriority - range from 0 to 1.
  55. *
  56. * interrupt nesting enable-8 Level(CSR-0x804 bit1 = 1 bit[3:2] = 3)
  57. * NVIC_IRQChannelPreemptionPriority - range from 0 to 7.
  58. * NVIC_IRQChannelSubPriority - range range is 0.
  59. */
  60. typedef struct
  61. {
  62. uint8_t NVIC_IRQChannel;
  63. uint8_t NVIC_IRQChannelPreemptionPriority;
  64. uint8_t NVIC_IRQChannelSubPriority;
  65. FunctionalState NVIC_IRQChannelCmd;
  66. } NVIC_InitTypeDef;
  67. /* Preemption_Priority_Group */
  68. #if (INTSYSCR_INEST == INTSYSCR_INEST_NoEN)
  69. #define NVIC_PriorityGroup_0 ((uint32_t)0x00) /* interrupt nesting disable(CSR-0x804 bit1 = 0) */
  70. #elif (INTSYSCR_INEST == INTSYSCR_INEST_EN_2Level)
  71. #define NVIC_PriorityGroup_1 ((uint32_t)0x01) /* interrupt nesting enable-2 Level(CSR-0x804 bit1 = 1 bit[3:2] = 1) */
  72. #elif (INTSYSCR_INEST == INTSYSCR_INEST_EN_8Level)
  73. #define NVIC_PriorityGroup_3 ((uint32_t)0x03) /* interrupt nesting enable-8 Level(CSR-0x804 bit1 = 1 bit[3:2] = 3) */
  74. #else
  75. #define NVIC_PriorityGroup_2 ((uint32_t)0x02) /* interrupt nesting enable-4 Level(CSR-0x804 bit1 = 1 bit[3:2] = 2) */
  76. #endif
  77. void NVIC_PriorityGroupConfig(uint32_t NVIC_PriorityGroup);
  78. void NVIC_Init(NVIC_InitTypeDef *NVIC_InitStruct);
  79. #ifdef __cplusplus
  80. }
  81. #endif
  82. #endif