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121 lines
3.3 KiB
121 lines
3.3 KiB
/********************************** (C) COPYRIGHT *******************************
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* File Name : CH58x_pwm.c
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* Author : WCH
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* Version : V1.2
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* Date : 2021/11/17
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* Description
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* SPDX-License-Identifier: Apache-2.0
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*******************************************************************************/
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#include "CH58x_common.h"
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/*********************************************************************
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* @fn PWMX_CycleCfg
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*
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* @brief PWM4-PWM11基准时钟配置
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*
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* @param cyc - refer to PWMX_CycleTypeDef
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*
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* @return none
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*/
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void PWMX_CycleCfg(PWMX_CycleTypeDef cyc)
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{
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switch(cyc)
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{
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case PWMX_Cycle_256:
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R8_PWM_CONFIG = R8_PWM_CONFIG & 0xf0;
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break;
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case PWMX_Cycle_255:
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R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | 0x01;
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break;
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case PWMX_Cycle_128:
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R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (1 << 2);
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break;
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case PWMX_Cycle_127:
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R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (1 << 2) | 0x01;
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break;
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case PWMX_Cycle_64:
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R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (2 << 2);
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break;
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case PWMX_Cycle_63:
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R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (2 << 2) | 0x01;
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break;
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case PWMX_Cycle_32:
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R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (3 << 2);
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break;
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case PWMX_Cycle_31:
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R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (3 << 2) | 0x01;
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break;
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default:
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break;
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}
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}
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/*********************************************************************
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* @fn PWMX_ACTOUT
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*
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* @brief PWM4-PWM11通道输出波形配置
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*
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* @param ch - select channel of pwm, refer to channel of PWM define
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* @param da - effective pulse width
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* @param pr - select wave polar, refer to PWMX_PolarTypeDef
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* @param s - control pwmx function, ENABLE or DISABLE
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*
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* @return none
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*/
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void PWMX_ACTOUT(uint8_t ch, uint8_t da, PWMX_PolarTypeDef pr, FunctionalState s)
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{
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uint8_t i;
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if(s == DISABLE)
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{
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R8_PWM_OUT_EN &= ~(ch);
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}
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else
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{
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(pr) ? (R8_PWM_POLAR |= (ch)) : (R8_PWM_POLAR &= ~(ch));
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for(i = 0; i < 8; i++)
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{
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if((ch >> i) & 1)
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{
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*((volatile uint8_t *)((&R8_PWM4_DATA) + i)) = da;
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}
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}
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R8_PWM_OUT_EN |= (ch);
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}
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}
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/*********************************************************************
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* @fn PWMX_AlterOutCfg
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*
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* @brief PWM 交替输出模式配置
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*
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* @param ch - select group of PWM alternate output
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* RB_PWM4_5_STAG_EN - PWM4 和 PWM5 通道交替输出
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* RB_PWM6_7_STAG_EN - PWM6 和 PWM7 通道交替输出
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* RB_PWM8_9_STAG_EN - PWM8 和 PWM9 通道交替输出
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* RB_PWM10_11_STAG_EN - PWM10 和 PWM11 通道交替输出
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* @param s - control pwmx function, ENABLE or DISABLE
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*
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* @return none
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*/
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void PWMX_AlterOutCfg(uint8_t ch, FunctionalState s)
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{
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if(s == DISABLE)
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{
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R8_PWM_CONFIG &= ~(ch);
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}
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else
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{
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R8_PWM_CONFIG |= (ch);
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}
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}
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