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Branche: copilot/remove-vbus-code-implementation
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rt-thread
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bsp
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hc32
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libraries
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hc32_drivers
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drv_sdram.h

drv_sdram.h 1.6 KB
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  1. /*
    2. 

  2.  * Copyright (C) 2022-2024, Xiaohua Semiconductor Co., Ltd.
    3. 

  3.  *
    4. 

  4.  * SPDX-License-Identifier: Apache-2.0
    5. 

  5.  *
    6. 

  6.  * Change Logs:
    7. 

  7.  * Date           Author       Notes
    8. 

  8.  * 2023-02-14     CDT          first version
    9. 

  9.  */
    10. 

  10. 

  11. #ifndef __DRV_SDRAM_H__
    12. 

  12. #define __DRV_SDRAM_H__
    13. 

  13. 

  14. /*******************************************************************************
    15. 

  15.  * Include files
    16. 

  16.  ******************************************************************************/
    17. 

  17. 

  18. /* C binding of definitions if building with C++ compiler */
    19. 

  19. #ifdef __cplusplus
    20. 

  20. extern "C" {
    21. 

  21. #endif
    22. 

  22. 

  23. /*******************************************************************************
    24. 

  24.  * Global type definitions ('typedef')
    25. 

  25.  ******************************************************************************/
    26. 

  26. 

  27. /*******************************************************************************
    28. 

  28.  * Global pre-processor symbols/macros ('#define')
    29. 

  29.  ******************************************************************************/
    30. 

  30. #if defined (HC32F4A0)
    31. 

  31. #define EXMC_EXCLK_DMC_MAX_FREQ             (40UL * 1000000UL)
    32. 

  32. #elif defined (HC32F4A8)
    33. 

  33. #define EXMC_EXCLK_DMC_MAX_FREQ             (120UL * 1000000UL)
    34. 

  34. #endif
    35. 

  35. 

  36. /*******************************************************************************
    37. 

  37.  * Global variable definitions ('extern')
    38. 

  38.  ******************************************************************************/
    39. 

  39. 

  40. /*******************************************************************************
    41. 

  41.  * Global function prototypes (definition in C source)
    42. 

  42.  ******************************************************************************/
    43. 

  43. int rt_hw_sdram_init(void);
    44. 

  44. 

  45. #ifdef __cplusplus
    46. 

  46. }
    47. 

  47. #endif
    48. 

  48. 

  49. #endif /* __DRV_SDRAM_H__ */
    50.