101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
/*================================================================
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Copyright (c) 2022, Quectel Wireless Solutions Co., Ltd. All rights reserved.
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Quectel Wireless Solutions Proprietary and Confidential.
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=================================================================*/
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#ifndef _QL_PWM_H
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#define _QL_PWM_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum QL_PWM_CYCLE_RANGE_ENUM
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{
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QL_PWM_CYCLE_ABOVE_1US,
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QL_PWM_CYCLE_ABOVE_10US,
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QL_PWM_CYCLE_ABOVE_1MS
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} QL_PWM_CYCLE_RANGE_E;
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typedef enum
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{
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QL_PWM_CLK_SRC_13M,
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QL_PWM_CLK_SRC_32K,
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}QL_PWM_CLK_SRC_E;
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typedef struct
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{
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unsigned long pwm_psc; //(value:1~64) example:choose 13 MHz, maximum is 13000000/1=13 MHz, minimum is 13000000/64 = 203,125 KHz.
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unsigned short high_one_cycle_duration; //Time that PWM_OUT puls is high in term of "clk_freq" define above. This value is written to PWDUTY register.
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unsigned short total_one_cycle_duration; //(1<value< 1023) One cycle of PWM_OUT puls (high and low) in term of "clk_freq" define above. This value is written to PERVAL register.
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QL_PWM_CLK_SRC_E clk_src; //The clock source,32KHz and 13MHz
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}QL_PWM_CONFIG_EX;
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/******************************************************************
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* Functions
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******************************************************************/
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/*****************************************************************
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* Function: ql_pwm_enable
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*
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* Description:
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*此函数打开pwm功能
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*
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* Parameters:
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* gpio_num [in] 选择PWM的GPIO口。
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*
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* Return:
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* 0 成功。
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* -1 失败。
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*
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*****************************************************************/
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int ql_pwm_enable(unsigned int gpio_num);
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/*****************************************************************
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* Function: ql_pwm_disable
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*
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* Description:
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*此函数关闭pwm功能
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*
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* Parameters:
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* gpio_num [in] 选择PWM的GPIO口。
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*
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* Return:
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* 0 成功。
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* -1 失败。
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*
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*****************************************************************/
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int ql_pwm_disable(unsigned int gpio_num);
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/*****************************************************************
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* Function: ql_pwm_config_plus_ex
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*
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* Description: 2022-02-28
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*此函数产生的pwm频率可根据用户选择时钟源、分频系数、重装值来自定义设置频率；选择高电平、重装值时间(整个周期时间)确定PWM占空比。
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*
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* Parameters:
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* gpio_num [in] 选择PWM的GPIO口。
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* pwm_parameter [in] 设置分频系数、高电平、重装值、时钟源等参数
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*
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* Return:
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* 0 成功。
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* -1 失败。
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*
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*****************************************************************/
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int ql_pwm_config_plus_ex(unsigned int gpio_num,QL_PWM_CONFIG_EX *pwm_parameter);
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#ifdef __cplusplus
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} /*"C" */
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#endif
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#endif
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