a4eb5a5399
在使用stm32的pwm驱动时，发现其初始化channel的时候是根据device->channel这个值去初始化的，device->channel这个值是在pwm_configh.h里面定义设置的，又根据rtt的pwm例程，和常规习惯，应该大多数人会更喜欢设置channel=1/2/3/4，而不是在pwm_configh.h中将channel设置为TIM_CHANNEL_1/2/3/4，因此建议drv_pwm.c做出PR中的修改。 在实际开发中，因pwm_configh.h的示例均是.channel=0，又没有做出解释说明要让.channel=TIM_CHANNEL_1/2/3/4的值，容易误操作导致没有成功输出PWM，这是我在实际开发中遇到的现实问题，因而提出此建议。
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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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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* 2018-12-13 zylx first version
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*/
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#ifndef __PWM_CONFIG_H__
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#define __PWM_CONFIG_H__
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#include <rtthread.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* .tim_handle.Instance = TIM1/2/3...,
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* .name = "your pwm device name",
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* .channel = 1/2/3/4
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*/
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#ifdef BSP_USING_PWM2
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#ifndef PWM2_CONFIG
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#define PWM2_CONFIG \
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{ \
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.tim_handle.Instance = TIM2, \
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.name = "pwm2", \
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.channel = 0 \
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}
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#endif /* PWM2_CONFIG */
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#endif /* BSP_USING_PWM2 */
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#ifdef BSP_USING_PWM3
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#ifndef PWM3_CONFIG
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#define PWM3_CONFIG \
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{ \
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.tim_handle.Instance = TIM3, \
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.name = "pwm3", \
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.channel = 0 \
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}
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#endif /* PWM3_CONFIG */
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#endif /* BSP_USING_PWM3 */
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#ifdef BSP_USING_PWM4
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#ifndef PWM4_CONFIG
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#define PWM4_CONFIG \
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{ \
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.tim_handle.Instance = TIM4, \
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.name = "pwm4", \
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.channel = 0 \
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}
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#endif /* PWM4_CONFIG */
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#endif /* BSP_USING_PWM4 */
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#ifdef BSP_USING_PWM5
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#ifndef PWM5_CONFIG
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#define PWM5_CONFIG \
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{ \
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.tim_handle.Instance = TIM5, \
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.name = "pwm5", \
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.channel = 0 \
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}
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#endif /* PWM5_CONFIG */
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#endif /* BSP_USING_PWM5 */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __PWM_CONFIG_H__ */
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