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/********************************** (C) COPYRIGHT *******************************
* File Name : CH58x_timer2.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 TMR2_TimerInit
*
* @brief 定时功能初始化
*
* @param t - 定时时间，基于当前系统时钟Tsys, 最长定时周期 67108864
*
* @return none
*/
void TMR2_TimerInit(uint32_t t)
{
R32_TMR2_CNT_END = t;
R8_TMR2_CTRL_MOD = RB_TMR_ALL_CLEAR;
R8_TMR2_CTRL_MOD = RB_TMR_COUNT_EN;
}
/*********************************************************************
* @fn TMR2_EXTSingleCounterInit
*
* @brief 边沿计数功能初始化
*
* @param cap - 采集计数类型
*
* @return none
*/
void TMR2_EXTSingleCounterInit(CapModeTypeDef cap)
{
R8_TMR2_CTRL_MOD = RB_TMR_ALL_CLEAR;
R8_TMR2_CTRL_MOD = RB_TMR_COUNT_EN | RB_TMR_CAP_COUNT | RB_TMR_MODE_IN | (cap << 6);
}
/*********************************************************************
* @fn TMR2_PWMInit
*
* @brief PWM 输出初始化
*
* @param pr - select wave polar, refer to PWMX_PolarTypeDef
* @param ts - set pwm repeat times, refer to PWM_RepeatTsTypeDef
*
* @return none
*/
void TMR2_PWMInit(PWMX_PolarTypeDef pr, PWM_RepeatTsTypeDef ts)
{
// R8_TMR2_CTRL_MOD = RB_TMR_ALL_CLEAR;
R8_TMR2_CTRL_MOD = RB_TMR_COUNT_EN | RB_TMR_OUT_EN | (pr << 4) | (ts << 6);
}
/*********************************************************************
* @fn TMR2_CapInit
*
* @brief 外部信号捕捉功能初始化
*
* @param cap - select capture mode, refer to CapModeTypeDef
*
* @return none
*/
void TMR2_CapInit(CapModeTypeDef cap)
{
R8_TMR2_CTRL_MOD = RB_TMR_ALL_CLEAR;
R8_TMR2_CTRL_MOD = RB_TMR_COUNT_EN | RB_TMR_MODE_IN | (cap << 6);
}
/*********************************************************************
* @fn TMR2_DMACfg
*
* @brief 配置DMA功能
*
* @param s - 是否打开DMA功能
* @param startAddr - DMA 起始地址
* @param endAddr - DMA 结束地址
* @param m - 配置DMA模式
*
* @return none
*/
void TMR2_DMACfg(uint8_t s, uint16_t startAddr, uint16_t endAddr, DMAModeTypeDef m)
{
if(s == DISABLE)
{
R8_TMR2_CTRL_DMA = 0;
}
else
{
R16_TMR2_DMA_BEG = startAddr;
R16_TMR2_DMA_END = endAddr;
if(m)
R8_TMR2_CTRL_DMA = RB_TMR_DMA_LOOP | RB_TMR_DMA_ENABLE;
else
R8_TMR2_CTRL_DMA = RB_TMR_DMA_ENABLE;
}
}
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