96 lines
3.4 KiB
C
96 lines
3.4 KiB
C
/*================================================================
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Copyright (c) 2021, 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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#include <stdio.h>
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#include <math.h>
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#include "ql_rtos.h"
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#include "ql_application.h"
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#include "ql_pwm.h"
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#include "ql_gpio.h"
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#define QL_PWM_TEST_ENABLE
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#ifdef QL_PWM_TEST_ENABLE
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/*Function: quec_pwm_test1
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/*13M 实际值 只有12.7998M左右，32K实际值为32787
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*此案例产生的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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输出PWM的频率为： f = MCLK / ( (psc+1)(arr+1) ) ; 设置的arr为10位寄存器，因此重装值满足1=<value<1024。需要注意重装值的范围。
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注意：此处psc+1,是为了防止用户输入0分频，不便于理解，在底层代码中已减去1；因此设置psc的值为多少，即多少分频。
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*/
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static void quec_pwm_test1(void * argv)
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{
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ql_rtos_task_sleep_s(2);
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printf("pwm test is running!!!\n");
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unsigned int gpio_num1 = 117;
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unsigned int gpio_num2 = 32;
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unsigned int gpio_num3 = 11;
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unsigned int gpio_num4 = 10;
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unsigned long pwm_psc = 1;
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QL_PWM_CONFIG_EX pwm_parameter1;
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QL_PWM_CONFIG_EX pwm_parameter2;
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QL_PWM_CONFIG_EX pwm_parameter3;
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QL_PWM_CONFIG_EX pwm_parameter4;
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//可以自己按公式计算得到想要的PWM，提高精确度
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printf("pwm test QUEC_PWM_CLK_SRC_13M!!!\n");
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pwm_parameter1.pwm_psc = pwm_psc; //(value:1~64)
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pwm_parameter1.high_one_cycle_duration = 195;
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pwm_parameter1.total_one_cycle_duration =389; //(value: 1<value<1024) f=12.7998 MHz/(389+1)=32820 HZ
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pwm_parameter1.clk_src=QL_PWM_CLK_SRC_13M;
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ql_pwm_config_plus_ex(gpio_num1,&pwm_parameter1); //调用PWM函数接口
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ql_pwm_enable(gpio_num1); //PWM使能
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printf("pwm test QUEC_PWM_CLK_SRC_32K!!!\n");
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pwm_parameter2.pwm_psc = 1; //(value:1~64)
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pwm_parameter2.high_one_cycle_duration = 164;
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pwm_parameter2.total_one_cycle_duration = 327; //(value: 1<value<1024) f=32787/(327+1)=99.96 HZ
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pwm_parameter2.clk_src=QL_PWM_CLK_SRC_32K;
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//test_log("PWM=%d\n %d\n %ld\n %d\n %d\n",gpio_num2,pwm_parameter2.clk_src,pwm_parameter2.pwm_psc,pwm_parameter2.high_one_cycle_duration,pwm_parameter2.total_one_cycle_duration);
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ql_pwm_config_plus_ex(gpio_num2,&pwm_parameter2);
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ql_pwm_enable(gpio_num2);
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pwm_parameter3.pwm_psc = 1; //(value:1~64)
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pwm_parameter3.high_one_cycle_duration = 17;//17
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pwm_parameter3.total_one_cycle_duration = 33; //(value: 1<value<1024) f=32787/(32+1)=964.32 HZ
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pwm_parameter3.clk_src=QL_PWM_CLK_SRC_32K;
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ql_pwm_config_plus_ex(gpio_num3,&pwm_parameter3);
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ql_pwm_enable(gpio_num3);
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pwm_parameter4.pwm_psc = 1; //(value:1~64)
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pwm_parameter4.high_one_cycle_duration = 160;
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pwm_parameter4.total_one_cycle_duration = 320; //(value: 1<value<1024) f=32787/(320+1)=102.14 HZ
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pwm_parameter4.clk_src=QL_PWM_CLK_SRC_32K;
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ql_pwm_config_plus_ex(gpio_num4,&pwm_parameter4);
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ql_pwm_enable(gpio_num4);
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}
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//application_init(quec_pwm_test1, "quec_pwm_test1", 2, 0);
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static void quec_gpio_32KHz_test(void * argv)
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{
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/*gpio input 32Khz (32787Hz)*/
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printf("quec_gpio_32KHz_test!!!\n");
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ql_gpio_map_clock(GPIO_PIN_NO_28); //use GPIO_PIN_NO_28
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ql_gpio_map_clock(GPIO_PIN_NO_20); //use GPIO_PIN_NO_20
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}
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//application_init(quec_gpio_32KHz_test, "quec_gpio_32KHz_test", 2, 0);
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#endif /* QL_PWM_TEST_ENABLE */
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