88 lines
3.4 KiB
C
88 lines
3.4 KiB
C
/**
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* @file pwm_dc_motor.c
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* @brief
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*
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* Copyright (c) 2021 Bouffalolab team
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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*/
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#include "hal_pwm.h"
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#include "hal_gpio.h"
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#include "hal_clock.h"
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int main(void)
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{
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pwm_dutycycle_config_t pwm_cfg[2];
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pwm_cfg[0].threshold_low = 0;
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pwm_cfg[0].threshold_high = 0;
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pwm_cfg[1].threshold_low = 0;
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pwm_cfg[1].threshold_high = 0;
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bflb_platform_init(0);
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pwm_register(PWM_CH0_INDEX, "dc_motor_ch0");
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pwm_register(PWM_CH1_INDEX, "dc_motor_ch1");
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struct device *dc_motor_ch0 = device_find("dc_motor_ch0");
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struct device *dc_motor_ch1 = device_find("dc_motor_ch1");
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if (dc_motor_ch0) {
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PWM_DEV(dc_motor_ch0)->period = 32; //frequence = 32K/1/32 = 1Khz
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PWM_DEV(dc_motor_ch0)->threshold_low = 16;
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PWM_DEV(dc_motor_ch0)->threshold_high = 32;
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device_open(dc_motor_ch0, DEVICE_OFLAG_STREAM_TX);
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pwm_channel_start(dc_motor_ch0);
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}
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if (dc_motor_ch1) {
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PWM_DEV(dc_motor_ch1)->period = 32; //frequence = 32K/1/32 = 1Khz
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PWM_DEV(dc_motor_ch1)->threshold_low = 16;
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PWM_DEV(dc_motor_ch1)->threshold_high = 32;
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device_open(dc_motor_ch1, DEVICE_OFLAG_STREAM_TX);
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pwm_channel_start(dc_motor_ch1);
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}
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while (1) {
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pwm_cfg[1].threshold_low = 0;
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pwm_cfg[1].threshold_high = 0;
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device_control(dc_motor_ch1, DEVICE_CTRL_PWM_DUTYCYCLE_CONFIG, &pwm_cfg[1]);
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for (pwm_cfg[0].threshold_high = 16; pwm_cfg[0].threshold_high <= 32; pwm_cfg[0].threshold_high++) {
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device_control(dc_motor_ch0, DEVICE_CTRL_PWM_DUTYCYCLE_CONFIG, &pwm_cfg[0]);
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bflb_platform_delay_ms(1000);
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}
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for (pwm_cfg[0].threshold_high = 32; 16 <= pwm_cfg[0].threshold_high && pwm_cfg[0].threshold_high <= 32; pwm_cfg[0].threshold_high--) {
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device_control(dc_motor_ch0, DEVICE_CTRL_PWM_DUTYCYCLE_CONFIG, &pwm_cfg[0]);
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bflb_platform_delay_ms(1000);
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}
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pwm_cfg[0].threshold_low = 0;
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pwm_cfg[0].threshold_high = 0;
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device_control(dc_motor_ch0, DEVICE_CTRL_PWM_DUTYCYCLE_CONFIG, &pwm_cfg[0]);
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for (pwm_cfg[1].threshold_high = 16; pwm_cfg[1].threshold_high <= 32; pwm_cfg[1].threshold_high++) {
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device_control(dc_motor_ch1, DEVICE_CTRL_PWM_DUTYCYCLE_CONFIG, &pwm_cfg[1]);
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bflb_platform_delay_ms(1000);
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}
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for (pwm_cfg[1].threshold_high = 32; 16 <= pwm_cfg[1].threshold_high && pwm_cfg[1].threshold_high <= 32; pwm_cfg[1].threshold_high--) {
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device_control(dc_motor_ch1, DEVICE_CTRL_PWM_DUTYCYCLE_CONFIG, &pwm_cfg[1]);
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bflb_platform_delay_ms(1000);
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}
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}
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}
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