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/********************************** (C) COPYRIGHT *******************************
* File Name : ch32f20x_opa.c
* Author : WCH
* Version : V1.0.0
* Date : 2021/08/08
* Description : This file provides all the OPA firmware functions.
***************************************************************************************/
#include "ch32f20x_opa.h"
#define OPA_MASK ((uint32_t)0x000F)
#define OPA_Total_NUM 4
/********************************************************************************
* Function Name : OPA_DeInit
* Description : Deinitializes the OPA peripheral registers to their default
* reset values.
* Input : None
* Return : None
*********************************************************************************/
void OPA_DeInit(void)
{
OPA->CR=0;
}
/********************************************************************************
* Function Name : OPA_Init
* Description : Initializes the OPA peripheral according to the specified
* parameters in the OPA_InitStruct.
* Input : OPA_InitStruct: pointer to a OPA_InitTypeDef structure
* Return : None
*********************************************************************************/
void OPA_Init(OPA_InitTypeDef* OPA_InitStruct)
{
uint32_t tmp=0;
tmp=OPA->CR;
tmp &=~(OPA_MASK<<(OPA_InitStruct->OPA_NUM*OPA_Total_NUM));
tmp |= (( (OPA_InitStruct->PSEL<<OPA_PSEL_OFFSET)
|(OPA_InitStruct->NSEL<<OPA_NSEL_OFFSET)
|(OPA_InitStruct->Mode<<OPA_MODE_OFFSET))<<(OPA_InitStruct->OPA_NUM*OPA_Total_NUM));
OPA->CR=tmp;
}
/********************************************************************************
* Function Name : OPA_StructInit
* Description : Fills each OPA_StructInit member with its reset value.
* Input : OPA_StructInit: pointer to a OPA_InitTypeDef structure
* Return : None
*********************************************************************************/
void OPA_StructInit(OPA_InitTypeDef* OPA_InitStruct)
{
OPA_InitStruct->Mode = OUT_IO;
OPA_InitStruct->PSEL = CHP0;
OPA_InitStruct->NSEL = CHN0;
OPA_InitStruct->OPA_NUM = OPA1;
}
/********************************************************************************
* Function Name : OPA_Cmd
* Description : Enables or disables the specified OPA peripheral.
* Input : OPA_NUM : Select OPA
* NewState: ENABLE or DISABLE.
* Return : None
*********************************************************************************/
void OPA_Cmd(OPA_Num_TypeDef OPA_NUM, FunctionalState NewState)
{
if(NewState==ENABLE)
{
OPA->CR |= ((uint32_t)1<<(OPA_NUM*OPA_Total_NUM));
}
else
{
OPA->CR &= ~((uint32_t)1<<(OPA_NUM*OPA_Total_NUM));
}
}
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