SkyLi
189 lines
8.0 KiB
C
189 lines
8.0 KiB
C
/*********************************************************************************************************************
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* MSPM0G3507 Opensource Library 即（MSPM0G3507 开源库）是一个基于官方 SDK 接口的第三方开源库
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* Copyright (c) 2022 SEEKFREE 逐飞科技
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*
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* 本文件是 MSPM0G3507 开源库的一部分
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*
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* MSPM0G3507 开源库 是免费软件
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* 您可以根据自由软件基金会发布的 GPL（GNU General Public License，即 GNU通用公共许可证）的条款
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* 即 GPL 的第3版（即 GPL3.0）或（您选择的）任何后来的版本，重新发布和/或修改它
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*
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* 本开源库的发布是希望它能发挥作用，但并未对其作任何的保证
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* 甚至没有隐含的适销性或适合特定用途的保证
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* 更多细节请参见 GPL
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*
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* 您应该在收到本开源库的同时收到一份 GPL 的副本
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* 如果没有，请参阅<https://www.gnu.org/licenses/>
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*
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* 额外注明：
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* 本开源库使用 GPL3.0 开源许可证协议 以上许可申明为译文版本
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* 许可申明英文版在 libraries/doc 文件夹下的 GPL3_permission_statement.txt 文件中
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* 许可证副本在 libraries 文件夹下 即该文件夹下的 LICENSE 文件
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* 欢迎各位使用并传播本程序 但修改内容时必须保留逐飞科技的版权声明（即本声明）
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*
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* 文件名称 zf_driver_pwm
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* 公司名称 成都逐飞科技有限公司
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* 版本信息 查看 libraries/doc 文件夹内 version 文件 版本说明
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* 开发环境 MDK 5.37
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* 适用平台 MSPM0G3507
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* 店铺链接 https://seekfree.taobao.com/
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*
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* 修改记录
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* 日期 作者 备注
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* 2025-06-1 SeekFree first version
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********************************************************************************************************************/
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#include "zf_common_clock.h"
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#include "zf_common_debug.h"
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#include "zf_driver_gpio.h"
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#include "zf_driver_timer.h"
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#include "zf_driver_pwm.h"
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//-------------------------------------------------------------------------------------------------------------------
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// 函数简介 PWM 更新占空比
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// 参数说明 pin 选择 PWM 引脚
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// 参数说明 duty 设置占空比
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// 返回参数 void
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// 使用示例 pwm_set_duty(TIM5_PWMCH1_A0, PWM_DUTY_MAX / 4);
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// 备注信息
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//-------------------------------------------------------------------------------------------------------------------
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void pwm_set_duty (pwm_channel_enum pin, const uint32 duty)
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{
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// 如果是这一行报错 那你得去看看最大占空比是限定的多少 占空比写入错误
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zf_assert(PWM_DUTY_MAX >= duty); // 占空比写入错误
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GPTIMER_Regs *timer_obj;
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switch((pin >> PWM_INDEX_OFFSET) & PWM_INDEX_MASK)
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{
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case PWM_TIM_A0 : timer_obj = TIMA0 ; break;
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case PWM_TIM_A1 : timer_obj = TIMA1 ; break;
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case PWM_TIM_G0 : timer_obj = TIMG0 ; break;
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case PWM_TIM_G6 : timer_obj = TIMG6 ; break;
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case PWM_TIM_G7 : timer_obj = TIMG7 ; break;
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case PWM_TIM_G8 : timer_obj = TIMG8 ; break;
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case PWM_TIM_G12: timer_obj = TIMG12; break;
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default: break;
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}
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uint16 period_temp = timer_obj->COUNTERREGS.LOAD; // 获取自动重装载值
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uint16 match_temp = (uint16)(period_temp * ((float)duty / PWM_DUTY_MAX)); // 计算占空比
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uint32 channel_index = (pin >> PWM_CHANNEL_OFFSET) & PWM_CHANNEL_MASK;
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if(0 == duty)
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{
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timer_obj->COMMONREGS.ODIS |= (GPTIMER_ODIS_C0CCP0_CCP_OUTPUT_LOW << channel_index);
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}
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if(2 > channel_index)
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{
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timer_obj->COUNTERREGS.CC_01[channel_index % 2] =
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(match_temp == period_temp) ? period_temp + 1 : match_temp;
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}
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else
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{
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timer_obj->COUNTERREGS.CC_23[channel_index % 2] =
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(match_temp == period_temp) ? period_temp + 1 : match_temp;
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}
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if(duty)
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{
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timer_obj->COMMONREGS.ODIS &= ~(GPTIMER_ODIS_C0CCP0_CCP_OUTPUT_LOW << channel_index);
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}
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}
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//-------------------------------------------------------------------------------------------------------------------
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// 函数简介 PWM 初始化
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// 参数说明 pin 选择 PWM 引脚
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// 参数说明 freq 设置频率 同个模块只有最后一次设置生效
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// 参数说明 duty 设置占空比
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// 返回参数 void
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// 使用示例 pwm_init(TIM5_PWMCH1_A0, 17000, PWM_DUTY_MAX / 2);
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// 备注信息
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//-------------------------------------------------------------------------------------------------------------------
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void pwm_init (pwm_channel_enum pin, const uint32 freq, const uint32 duty)
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{
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uint8 tim_index = (pin >> PWM_INDEX_OFFSET) & PWM_INDEX_MASK;
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// 如果程序在输出了断言信息 并且提示出错位置在这里
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// 就去查看你在什么地方调用这个函数 检查你的传入参数
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// 这里是检查是否有重复使用定时器
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// 比如初始化了 TIM1_PIT 然后又初始化成 TIM1_PWM 这种用法是不允许的
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zf_assert(timer_funciton_check((timer_index_enum)(tim_index), TIMER_FUNCTION_PWM));
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// 如果是这一行报错 那你得去看看最大占空比是限定的多少 占空比写入错误
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zf_assert(PWM_DUTY_MAX >= duty);
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timer_clock_enable((timer_index_enum)(tim_index));
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afio_init((gpio_pin_enum)(pin & PWM_PIN_INDEX_MASK), GPO, (gpio_af_enum)((pin >> PWM_PIN_AF_OFFSET) & PWM_PIN_AF_MASK), GPO_AF_PUSH_PULL); // 初始化引脚
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GPTIMER_Regs *timer_obj;
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switch(tim_index)
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{
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case PWM_TIM_A0 : timer_obj = TIMA0 ; break;
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case PWM_TIM_A1 : timer_obj = TIMA1 ; break;
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case PWM_TIM_G0 : timer_obj = TIMG0 ; break;
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case PWM_TIM_G6 : timer_obj = TIMG6 ; break;
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case PWM_TIM_G7 : timer_obj = TIMG7 ; break;
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case PWM_TIM_G8 : timer_obj = TIMG8 ; break;
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case PWM_TIM_G12: timer_obj = TIMG12; break;
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default: break;
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}
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timer_obj->COUNTERREGS.CTRCTL = GPTIMER_CTRCTL_CM_UP | GPTIMER_CTRCTL_REPEAT_REPEAT_1;
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uint32 clock_selcet = 0;
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uint8 div_temp = 1;
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uint16 psc_temp = 1;
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uint32 clock_temp = 0;
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if(PWM_TIM_G0 == tim_index || PWM_TIM_G8 == tim_index)
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{
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clock_selcet = 40000000;
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}
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else
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{
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clock_selcet = 80000000;
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}
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for(;;)
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{
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clock_temp = clock_selcet / freq / div_temp / psc_temp;
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if(0xFFF0 < clock_temp)
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{
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psc_temp ++;
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if(256 == psc_temp)
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{
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psc_temp = 1;
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div_temp += 1;
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}
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if(9 == div_temp)
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{
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clock_selcet = 4000000;
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psc_temp = 1;
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div_temp = 1;
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}
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}
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else
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{
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break;
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}
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}
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timer_obj->CLKSEL = (4000000 == clock_selcet) ? (GPTIMER_CLKSEL_MFCLK_SEL_ENABLE) : (GPTIMER_CLKSEL_BUSCLK_SEL_ENABLE);
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timer_obj->CLKDIV = div_temp - 1;
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timer_obj->COMMONREGS.CPS = psc_temp - 1;
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timer_obj->COUNTERREGS.LOAD = clock_selcet / freq / div_temp / psc_temp - 1;
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uint32 channel_index = (pin >> PWM_CHANNEL_OFFSET) & PWM_CHANNEL_MASK;
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timer_obj->COMMONREGS.CCPD |= GPTIMER_CCPD_C0CCP0_OUTPUT << ((pin >> PWM_CHANNEL_OFFSET) & PWM_CHANNEL_MASK);
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if(2 > channel_index)
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{
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timer_obj->COUNTERREGS.CCCTL_01[channel_index % 2] = (channel_index << GPTIMER_CCCTL_01_CC2SELU_OFS) | (channel_index << GPTIMER_CCCTL_01_CC2SELD_OFS);
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timer_obj->COUNTERREGS.CCACT_01[channel_index % 2] = GPTIMER_CCACT_01_ZACT_CCP_HIGH | GPTIMER_CCACT_01_CUACT_CCP_LOW;
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}
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else
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{
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timer_obj->COUNTERREGS.CCCTL_01[channel_index % 2] = (channel_index << GPTIMER_CCCTL_23_CC2SELU_OFS) | (channel_index << GPTIMER_CCCTL_23_CC2SELD_OFS);
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timer_obj->COUNTERREGS.CCACT_23[channel_index % 2] = GPTIMER_CCACT_23_ZACT_CCP_HIGH | GPTIMER_CCACT_23_CUACT_CCP_LOW;
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}
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pwm_set_duty(pin, duty);
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timer_obj->COUNTERREGS.CTRCTL |= GPTIMER_CTRCTL_EN_ENABLED;
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}
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