39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
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/**************************************************************************//**
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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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* 2020-7-9 Philo First version
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*
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******************************************************************************/
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#include <drv_ebi.h>
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#ifdef BSP_USING_EBI
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#define MAX_BANK EBI_BANK2
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/* Private variables ------------------------------------------------------------*/
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static uint8_t nu_ebi_bank_mask = 0;
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/* Public functions -------------------------------------------------------------*/
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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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{
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if (u32Bank > MAX_BANK)
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return -(RT_ERROR);
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/* Check this bank is not used */
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if ((1 << u32Bank) & nu_ebi_bank_mask)
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return -(RT_ERROR);
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/* Initialize EBI */
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EBI_Open(u32Bank, u32DataWidth, u32TimingClass, u32BusMode, u32CSActiveLevel);
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nu_ebi_bank_mask |= (1 << u32Bank);
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return RT_EOK;
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}
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#endif //BSP_USING_EBI
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