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/********************************** (C) COPYRIGHT *******************************
* File Name : CH57x_pwm.c
* Author : WCH
* Version : V1.0
* Date : 2018/12/15
* Description
*******************************************************************************/
#include "CH57x_common.h"
/*******************************************************************************
* Function Name : PWMX_CycleCfg
* Description : PWM4-PWM11基准时钟配置
* Input : 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;
}
}
/*******************************************************************************
* Function Name : PWMX_ACTOUT
* Description : PWM4-PWM11通道输出波形配置
* Input : ch: select channel of pwm
refer to channel of PWM define
da: effective pulse width
pr: select wave polar
refer to PWMX_PolarTypeDef
s : control pwmx function
ENABLE - 输出PWM
DISABLE - 关闭PWM
* Return : None
*******************************************************************************/
void PWMX_ACTOUT( UINT8 ch, UINT8 da, PWMX_PolarTypeDef pr, UINT8 s)
{
UINT8 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) *((PUINT8V)((&R8_PWM4_DATA)+i)) = da;
}
R8_PWM_OUT_EN |= (ch);
}
}
/*******************************************************************************
* Function Name : PWMX_AlterOutCfg
* Description : PWM 交替输出模式配置
* Input : 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
s : control pwmx function
ENABLE - 打开交替输出功能
DISABLE - 关闭交替输出功能
* Return : None
*******************************************************************************/
void PWMX_AlterOutCfg( UINT8 ch, UINT8 s)
{
if(s == DISABLE) R8_PWM_CONFIG &= ~(ch);
else R8_PWM_CONFIG |= (ch);
}
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