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67 lines
2.3 KiB
67 lines
2.3 KiB
4 months ago
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/*
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* Copyright (c) Hisilicon Technologies Co., Ltd.. 2021-2021. All rights reserved.
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* Description: pwm sample
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* Author: Hisilicon
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* Create: 2021.12.10
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*/
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/********************************************************************************************/
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/* Includes */
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/********************************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include "uapi_pwm.h"
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#include "sample_pwm.h"
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/*********************************************************************************************
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Function Implementation
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*********************************************************************************************/
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static td_void printf_help(td_void)
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{
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printf("\nUsage: sample_moto_pwm pwm_num | freq | duty_ratio | time_us\n");
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printf(" pwm_num - The moto pwm number should be 47(GPIO5_7).\n");
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printf(" freq - The frequency in Hz.\n");
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printf(" duty_ratio - The value of duty ratio is from 0 to 1000.\n");
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printf(" time_us - The duration time in microsecond.\n");
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printf("Example: sample_moto_pwm 47 36000 500 1000000\n");
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printf("Note: The moto pwm sample can only be ran on type_v1.\n");
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}
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td_s32 main(td_s32 argc, td_char *argv[])
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{
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td_s32 ret, ret1, i;
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td_u32 pwm_no, freq, duty_ratio, time_us;
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uapi_pwm_attr attr = {0};
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sample_pwm_check_param(ret, TD_FAILURE, argc != 0x5, goto help);
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pwm_no = (td_u32)strtoul(argv[0x1], TD_NULL, 0);
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freq = (td_u32)strtoul(argv[0x2], TD_NULL, 0);
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duty_ratio = (td_u32)strtoul(argv[0x3], TD_NULL, 0);
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time_us = (td_u32)strtoul(argv[0x4], TD_NULL, 0);
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sample_pwm_check_param(ret, TD_FAILURE, duty_ratio > 1000, goto help); /* 1000: max duty ratio */
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sample_pwm_func_call(ret, uapi_pwm_init(), goto out);
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attr.pwm_frequency = freq;
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attr.pwm_duty_ratio = duty_ratio;
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sample_pwm_func_call(ret, uapi_pwm_moto_trigger(pwm_no, &attr, time_us), goto deinit);
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while (1) {
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printf("enter q to quit\n");
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i = getchar();
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if (i == 'q') {
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break;
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}
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}
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sample_pwm_func_call(ret, uapi_pwm_set_enable(pwm_no, TD_FALSE), goto deinit);
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deinit:
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sample_pwm_func_call(ret1, uapi_pwm_deinit(), goto out);
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goto out;
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help:
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printf_help();
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out:
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return ret;
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}
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