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/********************************** (C) COPYRIGHT *******************************
* File Name : CH58x_pwm.c
* Author : WCH
* Version : V1.2
* Date : 2021/11/17
* Description
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#include "CH58x_common.h"
/*********************************************************************
* @fn PWMX_CycleCfg
*
* @brief PWM4-PWM11基准时钟配置
*
* @param cyc - refer to PWMX_CycleTypeDef
*
* @return none
*/
void PWMX_CycleCfg(PWMX_CycleTypeDef cyc)
{
switch(cyc)
{
case PWMX_Cycle_256:
R8_PWM_CONFIG = R8_PWM_CONFIG & 0xf0;
break;
case PWMX_Cycle_255:
R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | 0x01;
break;
case PWMX_Cycle_128:
R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (1 << 2);
break;
case PWMX_Cycle_127:
R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (1 << 2) | 0x01;
break;
case PWMX_Cycle_64:
R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (2 << 2);
break;
case PWMX_Cycle_63:
R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (2 << 2) | 0x01;
break;
case PWMX_Cycle_32:
R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (3 << 2);
break;
case PWMX_Cycle_31:
R8_PWM_CONFIG = (R8_PWM_CONFIG & 0xf0) | (3 << 2) | 0x01;
break;
default:
break;
}
}
/*********************************************************************
* @fn PWMX_ACTOUT
*
* @brief PWM4-PWM11通道输出波形配置
*
* @param ch - select channel of pwm, refer to channel of PWM define
* @param da - effective pulse width
* @param pr - select wave polar, refer to PWMX_PolarTypeDef
* @param s - control pwmx function, ENABLE or DISABLE
*
* @return none
*/
void PWMX_ACTOUT(uint8_t ch, uint8_t da, PWMX_PolarTypeDef pr, FunctionalState s)
{
uint8_t i;
if(s == DISABLE)
{
R8_PWM_OUT_EN &= ~(ch);
}
else
{
(pr) ? (R8_PWM_POLAR |= (ch)) : (R8_PWM_POLAR &= ~(ch));
for(i = 0; i < 8; i++)
{
if((ch >> i) & 1)
{
*((volatile uint8_t *)((&R8_PWM4_DATA) + i)) = da;
}
}
R8_PWM_OUT_EN |= (ch);
}
}
/*********************************************************************
* @fn PWMX_AlterOutCfg
*
* @brief PWM 交替输出模式配置
*
* @param ch - select group of PWM alternate output
* RB_PWM4_5_STAG_EN - PWM4 和 PWM5 通道交替输出
* RB_PWM6_7_STAG_EN - PWM6 和 PWM7 通道交替输出
* RB_PWM8_9_STAG_EN - PWM8 和 PWM9 通道交替输出
* RB_PWM10_11_STAG_EN - PWM10 和 PWM11 通道交替输出
* @param s - control pwmx function, ENABLE or DISABLE
*
* @return none
*/
void PWMX_AlterOutCfg(uint8_t ch, FunctionalState s)
{
if(s == DISABLE)
{
R8_PWM_CONFIG &= ~(ch);
}
else
{
R8_PWM_CONFIG |= (ch);
}
}
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