54 lines
2.4 KiB
C
54 lines
2.4 KiB
C
/**************************************************************************//**
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*
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* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-3-5 Philo First version
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*
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******************************************************************************/
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#ifndef __DRV_EBI_H___
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#define __DRV_EBI_H___
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#include <rtdevice.h>
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#include "NuMicro.h"
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#define MAX_BANK EBI_BANK2
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/**
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* @brief Initialize EBI for specify Bank
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*
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* @param[in] u32Bank Bank number for EBI. Valid values are:
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* - \ref EBI_BANK0
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* - \ref EBI_BANK1
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* - \ref EBI_BANK2
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* @param[in] u32DataWidth Data bus width. Valid values are:
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* - \ref EBI_BUSWIDTH_8BIT
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* - \ref EBI_BUSWIDTH_16BIT
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* @param[in] u32TimingClass Default timing configuration. Valid values are:
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* - \ref EBI_TIMING_FASTEST
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* - \ref EBI_TIMING_VERYFAST
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* - \ref EBI_TIMING_FAST
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* - \ref EBI_TIMING_NORMAL
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* - \ref EBI_TIMING_SLOW
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* - \ref EBI_TIMING_VERYSLOW
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* - \ref EBI_TIMING_SLOWEST
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* @param[in] u32BusMode Set EBI bus operate mode. Valid values are:
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* - \ref EBI_OPMODE_NORMAL
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* - \ref EBI_OPMODE_CACCESS
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* @param[in] u32CSActiveLevel CS is active High/Low. Valid values are:
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* - \ref EBI_CS_ACTIVE_HIGH
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* - \ref EBI_CS_ACTIVE_LOW
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*
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* @return None
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*
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* @details This function is used to open specify EBI bank with different bus width, timing setting and \n
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* active level of CS pin to access EBI device.
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* @note Write Buffer Enable(WBUFEN) and Extend Time Of ALE(TALE) are only available in EBI bank0 control register.
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*/
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rt_err_t nu_ebi_init(uint32_t u32Bank, uint32_t u32DataWidth, uint32_t u32TimingClass, uint32_t u32BusMode, uint32_t u32CSActiveLevel);
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#endif // __DRV_EBI_H___
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