牛卧堂MCU技术交流

标题: EBI_Open();函数的执行速度，请问有明确数据吗？ [打印本页]

作者: 匿名 时间: 3 小时前
标题: EBI_Open();函数的执行速度，请问有明确数据吗？
#define EBI_TIMING_FASTEST    0x0UL /*!< EBI timing is the fastest \hideinitializer */
#define EBI_TIMING_VERYFAST    0x1UL /*!< EBI timing is very fast \hideinitializer */
#define EBI_TIMING_FAST       0x2UL /*!< EBI timing is fast \hideinitializer */
#define EBI_TIMING_NORMAL    0x3UL /*!< EBI timing is normal  \hideinitializer */
#define EBI_TIMING_SLOW       0x4UL /*!< EBI timing is slow \hideinitializer */
#define EBI_TIMING_VERYSLOW    0x5UL /*!< EBI timing is very slow \hideinitializer */
#define EBI_TIMING_SLOWEST    0x6UL /*!< EBI timing is the slowest \hideinitializer */

EBI_Open(EBI_BANK0, EBI_BUSWIDTH_16BIT, EBI_TIMING_NORMAL, 0, EBI_CS_ACTIVE_LOW);

另外，这个还需要单独设置吗？
#define EBI_MCLKDIV_1          0x0UL /*!< EBI output clock(MCLK) is HCLK/1 \hideinitializer */
#define EBI_MCLKDIV_2          0x1UL /*!< EBI output clock(MCLK) is HCLK/2 \hideinitializer */
#define EBI_MCLKDIV_4          0x2UL /*!< EBI output clock(MCLK) is HCLK/4 \hideinitializer */
#define EBI_MCLKDIV_8          0x3UL /*!< EBI output clock(MCLK) is HCLK/8 \hideinitializer */
#define EBI_MCLKDIV_16       0x4UL /*!< EBI output clock(MCLK) is HCLK/16 \hideinitializer */
#define EBI_MCLKDIV_32       0x5UL /*!< EBI output clock(MCLK) is HCLK/32 \hideinitializer */
#define EBI_MCLKDIV_64       0x6UL /*!< EBI output clock(MCLK) is HCLK/64 \hideinitializer */
#define EBI_MCLKDIV_128       0x7UL /*!< EBI output clock(MCLK) is HCLK/128 \hideinitializer */

欢迎光临牛卧堂MCU技术交流 (http://nuvoton-mcu.com/)