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