30 lines
1.1 KiB
C
30 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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* 2021-10-21 Wayne First version
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*
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* Tips:
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* QEI compare interrupt flag *(pulse_encoder->user_data): If compare value is
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* not null, after execute device init, compare interrupt will be enabled automatic.
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* When the interrupt occur, interrupt flag will be set 1.
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*
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******************************************************************************/
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#ifndef __DRV_QEI_H__
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#define __DRV_QEI_H__
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#include <rtthread.h>
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rt_int32_t nu_qei_get_maxval(struct rt_pulse_encoder_device *pulse_encoder);
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rt_int32_t nu_qei_get_cmpval(struct rt_pulse_encoder_device *pulse_encoder);
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rt_int32_t nu_qei_get_type(struct rt_pulse_encoder_device *pulse_encoder);
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void nu_qei_set_maxval_type(struct rt_pulse_encoder_device *pulse_encoder, rt_uint32_t u32val, enum rt_pulse_encoder_type eType);
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void nu_qei_set_cmpval(struct rt_pulse_encoder_device *pulse_encoder, rt_uint32_t u32val);
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#endif // __DRV_QEI_H___
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