添加一些关于midi播放的项目
This commit is contained in:
terryLP
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/*********************************************************************!
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* 技术讨论：QQ群 123763203
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* 官网 ：www.navota.com
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*
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* @file i2c.c
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* @brief i2c通讯接口函数库
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* @author Navota
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* @date 2017-1-1
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************************************************************************/
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#include "common.h"
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#include "i2c.h"
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/*!
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* @brief 存放回调入口
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*
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*/
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static I2C_CallbackType I2C_Callback[2] = {(I2C_CallbackType)NULL};
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void I2C0_Isr( void );
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/******************************************************************************
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* 定义I2C的接口函数
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*******************************************************************************/
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/*****************************************************************************//*!
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*
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* @brief 初始化I2C模块.
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*
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* @param[in] pI2Cx I2C的基址.
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* @param[in] pI2CConfig 配置I2C的结构体.
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*
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* @return none
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*
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*****************************************************************************/
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void I2C_Init(I2C_Type *pI2Cx,I2C_ConfigPtr pI2CConfig)
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{
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uint8_t u8Temp;
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#if defined(CPU_NV32)
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SIM->SCGC |= SIM_SCGC_IIC_MASK;
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#endif
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I2C_SetBaudRate(pI2Cx,pI2CConfig->u16F);
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I2C_SetSlaveAddress(pI2Cx,pI2CConfig->u16OwnA1);
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pI2Cx->FLT = (uint8_t)pI2CConfig->u16Filt;
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pI2Cx->RA = (uint8_t)pI2CConfig->u16RangeA & 0xfe;
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I2C_SetSCLLowETMeout(pI2Cx,pI2CConfig->u16Slt);
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/* 配置控制寄存器C2 */
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u8Temp = 0;
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if( pI2CConfig->sSetting.bGCAEn )
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{
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u8Temp |= I2C_C2_GCAEN_MASK;
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}
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if( pI2CConfig->sSetting.bAddressExt )
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{
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u8Temp |= I2C_C2_ADEXT_MASK;
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}
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if( pI2CConfig->sSetting.bRangeAddEn )
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{
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u8Temp |= I2C_C2_RMEN_MASK;
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}
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pI2Cx->C2 |= u8Temp;
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/* 配置寄存器SMB */
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u8Temp = 0;
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if( pI2CConfig->sSetting.bFackEn )
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{
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u8Temp |= I2C_SMB_FACK_MASK;
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}
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if( pI2CConfig->sSetting.bSMB_AlertEn )
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{
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u8Temp |= I2C_SMB_ALERTEN_MASK;
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}
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if( pI2CConfig->sSetting.bSecondAddressEn )
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{
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u8Temp |= I2C_SMB_SIICAEN_MASK;
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}
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if( pI2CConfig->sSetting.bSHTF2IntEn )
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{
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u8Temp |= I2C_SMB_SHTF2IE_MASK;
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}
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pI2Cx->SMB = u8Temp;
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/* 配置寄存器C1 */
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u8Temp = 0;
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if( pI2CConfig->sSetting.bIntEn )
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{
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u8Temp |= I2C_C1_IICIE_MASK;
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if(pI2Cx == I2C0)
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{
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NVIC_EnableIRQ(I2C0_IRQn);
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}
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else
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{
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//
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}
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}
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if( pI2CConfig->sSetting.bWakeUpEn )
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{
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u8Temp |= I2C_C1_WUEN_MASK;
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}
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if( pI2CConfig->sSetting.bI2CEn )
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{
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u8Temp |= I2C_C1_IICEN_MASK;
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}
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pI2Cx->C1 = u8Temp;
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}
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/*****************************************************************************//*!
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*
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* @brief 发送I2C起始信号（启动传输）.
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*
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* @param[in] pI2Cx I2C的基址.
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*
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* @return 错误状态
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*
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*****************************************************************************/
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uint8_t I2C_Start(I2C_Type *pI2Cx)
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{
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uint32_t u32ETMeout;
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uint8_t u8ErrorStatus;
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u32ETMeout = 0;
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u8ErrorStatus = 0x00;
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I2C_TxEnable(pI2Cx);//将 I2C 配置成 TX 发送模式
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pI2Cx->C1 |= I2C_C1_MST_MASK;//将 I2C 配置成主机模式
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//持续监测起始位有没有发送成功
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while( (!I2C_IsBusy(pI2Cx)) && ( u32ETMeout < I2C_WAIT_STATUS_ETMEOUT))
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{
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u32ETMeout ++;
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}
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if( u32ETMeout == I2C_WAIT_STATUS_ETMEOUT )
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{
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u8ErrorStatus |= I2C_ERROR_START_NO_BUSY_FLAG;
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}
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return u8ErrorStatus;//返回错误标志，为0x10即起始信号没有发送成功
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}
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/*****************************************************************************//*!
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*
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* @brief 发送停止信号.
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*
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* @param[in] pI2Cx I2C的基址.
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*
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* @return 错误状态
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*
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*****************************************************************************/
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uint8_t I2C_Stop(I2C_Type *pI2Cx)
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{
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uint32_t u32ETMeout;
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uint8_t u8ErrorStatus;
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u32ETMeout = 0;
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u8ErrorStatus = 0x00;
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pI2Cx->C1 &= ~I2C_C1_MST_MASK;
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//持续监测 I2C 停止位是否发送成功
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while( (I2C_IsBusy(pI2Cx) ) && ( u32ETMeout < I2C_WAIT_STATUS_ETMEOUT))
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{
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u32ETMeout ++;
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}
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if( u32ETMeout == I2C_WAIT_STATUS_ETMEOUT )
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{
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u8ErrorStatus |= I2C_ERROR_STOP_BUSY_FLAG;
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}
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return u8ErrorStatus;
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}
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/*****************************************************************************//*!
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*
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* @brief 发送重复起始位.
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*
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* @param[in] pI2Cx I2C的基址.
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*
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* @return 错误状态.
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*
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*****************************************************************************/
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uint8_t I2C_RepeatStart(I2C_Type *pI2Cx)
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{
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uint32_t u32ETMeout;
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uint8_t u8ErrorStatus;
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u32ETMeout = 0;
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u8ErrorStatus = 0x00;
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pI2Cx->C1 |= I2C_C1_RSTA_MASK;
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//持续监测起始位是否发送成功
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while( (!I2C_IsBusy(I2C0) ) && ( u32ETMeout < I2C_WAIT_STATUS_ETMEOUT))
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{
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u32ETMeout ++;
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}
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if( u32ETMeout == I2C_WAIT_STATUS_ETMEOUT )
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{
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u8ErrorStatus |= I2C_ERROR_START_NO_BUSY_FLAG;
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}
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return u8ErrorStatus;
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}
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/*****************************************************************************//*!
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*
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* @brief 设置从机地址.
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*
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* @param[in] pI2Cx I2C的基址.
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* @param[in] u16SlaveAddress 从机地址.
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*
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* @return none
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*
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*****************************************************************************/
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void I2C_SetSlaveAddress(I2C_Type *pI2Cx,uint16_t u16SlaveAddress)
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{
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/* 写入8位地址 */
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pI2Cx->A1 = (uint8_t)u16SlaveAddress;
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/* 如果支持十位从机地址， 写入高三位地址 */
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pI2Cx->C2 &= ~I2C_C2_AD_MASK;
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pI2Cx->C2 |= (uint8_t)(u16SlaveAddress>>8)&0x03;
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}
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/*****************************************************************************//*!
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*
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* @brief 禁用I2C中断.
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*
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* @param[in] pI2Cx I2C的基址.
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*
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* @return none.
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*
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*****************************************************************************/
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void I2C_IntDisable(I2C_Type *pI2Cx)
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{
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pI2Cx->C1 &= ~I2C_C1_IICIE_MASK;
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if(pI2Cx == I2C0)
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{
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NVIC_DisableIRQ(I2C0_IRQn);
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}
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else
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{
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}
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}
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/*****************************************************************************//*!
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*
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* @brief 使能I2C中断.
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*
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* @param[in] pI2Cx I2C的基址.
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*
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* @return none.
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*
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*****************************************************************************/
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void I2C_IntEnable(I2C_Type *pI2Cx)
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{
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pI2Cx->C1 |= I2C_C1_IICIE_MASK;
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if(pI2Cx == I2C0)
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{
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NVIC_EnableIRQ(I2C0_IRQn);
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}
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else
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{
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}
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}
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/*****************************************************************************//*!
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*
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* @brief 设置SCL低超时周期.
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*
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* @param[in] pI2Cx I2C的基址.
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*
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* @return none.
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*
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*****************************************************************************/
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void I2C_SetSCLLowETMeout(I2C_Type *pI2Cx, uint16_t u16ETMeout)
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{
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pI2Cx->SLTL = (uint8_t)u16ETMeout;
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pI2Cx->SLTH = (uint8_t)(u16ETMeout>>8);
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}
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/*****************************************************************************//*!
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*
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* @brief 复位I2C模块.
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*
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* @param[in] pI2Cx I2C的基址.
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*
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* @return none
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*
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*****************************************************************************/
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void I2C_Deinit(I2C_Type *pI2Cx)
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{
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pI2Cx->C1 &= ~I2C_C1_IICEN_MASK;
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#if defined(CPU_NV32)
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SIM->SCGC &= ~SIM_SCGC_IIC_MASK;
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#endif
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}
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/*****************************************************************************//*!
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*
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* @brief 发送单字节数据.
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*
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* @param[in] pI2Cx I2C模块的基址.
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* @param[in] u8WrBuff 要写的数据缓冲区.
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*
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* @return 错误状态
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*
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*****************************************************************************/
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uint8_t I2C_WriteOneByte(I2C_Type *pI2Cx, uint8_t u8WrBuff)
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{
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uint32_t u32ETMeout;
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uint8_t u8ErrorStatus;
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u32ETMeout = 0;
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u8ErrorStatus = 0x00;
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while (((I2C_GetStatus(pI2Cx)&I2C_S_TCF_MASK) != I2C_S_TCF_MASK)
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&& (u32ETMeout<I2C_WAIT_STATUS_ETMEOUT))
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{
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u32ETMeout ++;
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}
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if (u32ETMeout >= I2C_WAIT_STATUS_ETMEOUT)
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{
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u8ErrorStatus |= I2C_ERROR_NO_WAIT_TCF_FLAG;
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return u8ErrorStatus;
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}
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I2C_TxEnable(pI2Cx); //将 I2C 配置成 TX 输出模式
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I2C_WriteDataReg(pI2Cx,u8WrBuff); //写数据寄存器发送数据
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u32ETMeout = 0;
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while (((I2C_GetStatus(pI2Cx)&I2C_S_IICIF_MASK) != I2C_S_IICIF_MASK)
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&& (u32ETMeout<I2C_WAIT_STATUS_ETMEOUT))
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{
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u32ETMeout ++;
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}
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if (u32ETMeout >= I2C_WAIT_STATUS_ETMEOUT)
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{
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u8ErrorStatus |= I2C_ERROR_NO_WAIT_IICIF_FLAG;
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return u8ErrorStatus;
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}
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/* 清除中断标志位 */
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I2C_ClearStatus(pI2Cx,I2C_S_IICIF_MASK);
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if (I2C_GetStatus(pI2Cx) & I2C_S_RXAK_MASK)
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{
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u8ErrorStatus |= I2C_ERROR_NO_GET_ACK;
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}
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return u8ErrorStatus;
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}
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/*****************************************************************************//*!
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*
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* @brief 读取单字节数据.
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*
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* @param[in] pI2Cx I2C的基址.
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* @param[out] pRdBuff 所要从从机读的地址.
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* @param[out] u8Ack 发送 ack or nack.
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*
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* @return 错误状态
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*
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*****************************************************************************/
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uint8_t I2C_ReadOneByte(I2C_Type *pI2Cx, uint8_t *pRdBuff, uint8_t u8Ack)
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{
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uint32_t u32ETMeout;
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uint8_t u8ErrorStatus;
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u32ETMeout = 0;
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u8ErrorStatus = 0x00;
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while (((I2C_GetStatus(pI2Cx)&I2C_S_TCF_MASK) != I2C_S_TCF_MASK)
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&& (u32ETMeout<I2C_WAIT_STATUS_ETMEOUT))
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{
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u32ETMeout ++;
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}
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if (u32ETMeout >= I2C_WAIT_STATUS_ETMEOUT)
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{
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u8ErrorStatus |= I2C_ERROR_NO_WAIT_TCF_FLAG;
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return u8ErrorStatus;
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}
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I2C_RxEnable(pI2Cx); //将 I2C 配置为输入模式
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if( u8Ack )
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{
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/* 发送 nack */
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I2C_SendNack(pI2Cx);
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}
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else
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{
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/* 发送 ack */
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I2C_SendAck(pI2Cx);
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}
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*pRdBuff = I2C_ReadDataReg(pI2Cx); //将读到的数据存放到参数里头
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u32ETMeout = 0;
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//持续监测中断标志
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while (((I2C_GetStatus(pI2Cx)&I2C_S_IICIF_MASK) != I2C_S_IICIF_MASK)
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&& (u32ETMeout<I2C_WAIT_STATUS_ETMEOUT))
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{
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u32ETMeout ++;
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}
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if (u32ETMeout >= I2C_WAIT_STATUS_ETMEOUT)
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{
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u8ErrorStatus |= I2C_ERROR_NO_WAIT_IICIF_FLAG;
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return u8ErrorStatus;
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}
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/*清除 IIC 中断标志位 */
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I2C_ClearStatus(pI2Cx,I2C_S_IICIF_MASK);
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return u8ErrorStatus;
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}
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/*****************************************************************************//*!
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*
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* @brief 发送数据到I2C,然后等待数据传送完成.
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*
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* @param[in] pI2Cx I2C的基址.
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* @param[in] u16SlaveAddress 16位从机地址.
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* @param[in] pWrBuff 需要发送数据的缓冲数组.
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* @param[in] u32Length 发送字节的数目.
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*
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* @return 错误状态
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*
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*****************************************************************************/
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uint8_t I2C_MasterSendWait(I2C_Type *pI2Cx,uint16_t u16SlaveAddress,uint8_t *pWrBuff,uint32_t u32Length)
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{
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uint32_t i;
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uint8_t u8ErrorStatus;
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/* 发送起始信号 */
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u8ErrorStatus = I2C_Start(pI2Cx);
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/* 给从机发送从机地址 */
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u8ErrorStatus = I2C_WriteOneByte(pI2Cx,((uint8_t)u16SlaveAddress<<1) | I2C_WRITE);
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/* 如果没有错误发生， 则继续发送字节*/
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if( u8ErrorStatus == I2C_ERROR_NULL )
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||||
{
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||||
for(i=0;i<u32Length;i++)
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||||
{
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||||
u8ErrorStatus = I2C_WriteOneByte(pI2Cx,pWrBuff[i]);
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||||
if( u8ErrorStatus != I2C_ERROR_NULL )
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||||
{
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return u8ErrorStatus;
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||||
}
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||||
}
|
||||
}
|
||||
|
||||
/*发送 I2C 停止位 */
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||||
u8ErrorStatus = I2C_Stop(pI2Cx);
|
||||
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||||
return u8ErrorStatus;
|
||||
|
||||
}
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 读取多个字节并等待完成.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
* @param[in] u16SlaveAddress 从机地址.
|
||||
* @param[in] pRdBuff 用于接收数据的缓冲区.
|
||||
* @param[in] u32Length 接收数据的字节数.
|
||||
*
|
||||
* @return 错误状态
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
uint8_t I2C_MasterReadWait(I2C_Type *pI2Cx,uint16_t u16SlaveAddress,uint8_t *pRdBuff,uint32_t u32Length)
|
||||
{
|
||||
uint32_t i;
|
||||
uint8_t u8ErrorStatus;
|
||||
|
||||
/* 发送起始信号到总线 */
|
||||
u8ErrorStatus = I2C_Start(pI2Cx);
|
||||
|
||||
/* 给从机发送器件地址 */
|
||||
u8ErrorStatus = I2C_WriteOneByte(pI2Cx,((uint8_t)u16SlaveAddress<<1) | I2C_READ);
|
||||
|
||||
/* 如果没有错误发生， 则继续接收字节*/
|
||||
I2C_ReadOneByte(pI2Cx,&pRdBuff[0],I2C_SEND_ACK);
|
||||
|
||||
if( u8ErrorStatus == I2C_ERROR_NULL )
|
||||
{
|
||||
for(i=0;i<u32Length-1;i++)
|
||||
{
|
||||
u8ErrorStatus = I2C_ReadOneByte(pI2Cx,&pRdBuff[i],I2C_SEND_ACK);
|
||||
if( u8ErrorStatus != I2C_ERROR_NULL )
|
||||
{
|
||||
return u8ErrorStatus;
|
||||
}
|
||||
}
|
||||
u8ErrorStatus = I2C_ReadOneByte(pI2Cx,&pRdBuff[i],I2C_SEND_NACK);
|
||||
}
|
||||
/*发送停止信号 */
|
||||
u8ErrorStatus = I2C_Stop(pI2Cx);
|
||||
|
||||
return u8ErrorStatus;
|
||||
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 设置I2C模块的中断回调函数
|
||||
*
|
||||
* @param[in] pfnCallback 回调函数的地址
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
void I2C1_SetCallBack( I2C_CallbackType pCallBack )
|
||||
{
|
||||
I2C_Callback[1] = pCallBack;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 设置RTC模块的中断回调函数
|
||||
*
|
||||
* @param[in] pfnCallback 回调函数的地址
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
void I2C0_SetCallBack( I2C_CallbackType pCallBack )
|
||||
{
|
||||
I2C_Callback[0] = pCallBack;
|
||||
}
|
||||
/*! @} */
|
||||
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief I2C0 中断服务函数.
|
||||
*
|
||||
* @param
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
void I2C0_Isr( void )
|
||||
{
|
||||
if( I2C_Callback[0] )
|
||||
{
|
||||
I2C_Callback[0]();
|
||||
}
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief I2C1 中断服务函数.
|
||||
*
|
||||
* @param
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
void I2C1_Isr( void )
|
||||
{
|
||||
if( I2C_Callback[1] )
|
||||
{
|
||||
I2C_Callback[1]();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
@@ -0,0 +1,503 @@
|
||||
/******************************************************************************
|
||||
*
|
||||
* @brief I2C 驱动头文件.
|
||||
*
|
||||
******************************************************************************/
|
||||
#ifndef _I2C_H__
|
||||
#define _I2C_H__
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#include "common.h"
|
||||
/******************************************************************************
|
||||
* 定义I2C的读和写
|
||||
*
|
||||
*//*!
|
||||
* @{
|
||||
*******************************************************************************/
|
||||
#define I2C_READ 0x01 /*!< I2C 读 */
|
||||
#define I2C_WRITE 0x0 /*!< I2C 写 */
|
||||
/*! @} */
|
||||
|
||||
#define I2C_SEND_ACK 0 /*!< I2C 发送 ACK */
|
||||
#define I2C_SEND_NACK 1 /*!< I2C 发送 NACK */
|
||||
|
||||
#define I2C_WAIT_STATUS_ETMEOUT 200000
|
||||
|
||||
/******************************************************************************
|
||||
* 定义I2C错误状态
|
||||
*
|
||||
*//*!
|
||||
* @{
|
||||
*******************************************************************************/
|
||||
#define I2C_ERROR_NULL 0x00 /*!< I2C 工作成功*/
|
||||
#define I2C_ERROR_NO_WAIT_TCF_FLAG 0x01 /*!< I2C 等待传输完成超时*/
|
||||
#define I2C_ERROR_NO_WAIT_IICIF_FLAG 0x02 /*!< I2C 等待中断超时 */
|
||||
#define I2C_ERROR_NO_GET_ACK 0x04 /*!< I2C 没有得到 ACK */
|
||||
#define I2C_ERROR_START_NO_BUSY_FLAG 0x10 /*!< I2C 没有成功发送起始信号 */
|
||||
#define I2C_ERROR_STOP_BUSY_FLAG 0x20 /*!< I2C 没有成功发送停止信号 */
|
||||
#define I2C_ERROR_BUS_BUSY 0x80 /*!< I2C 总线繁忙错误 */
|
||||
/*! @} End of i2c_error_state_list */
|
||||
|
||||
/******************************************************************************
|
||||
* 定义I2C总线状态
|
||||
*
|
||||
*//*!
|
||||
* @{
|
||||
*******************************************************************************/
|
||||
#define I2C_BUS_NORMAL 0x00 /*!< I2C 总线正常 */
|
||||
#define I2C_BUS_SLTF 0x01 /*!< I2C 总线偏移一个FLAG */
|
||||
#define I2C_BUS_SHTF2 0x02 /*!< I2C 总线偏移两个FLAG */
|
||||
/*! @} */
|
||||
|
||||
|
||||
#define I2C_MODE_MASTER 1
|
||||
#define I2C_MODE_SLAVE 0
|
||||
#define I2C_ADDRESS_7BIT 0
|
||||
#define I2C_ADDRESS_10BIT 1
|
||||
#define I2C_ETMEOUT_BUS_CLOCK_DIV64 0
|
||||
#define I2C_ETMEOUT_BUS_CLOCK 1
|
||||
|
||||
/******************************************************************************
|
||||
*
|
||||
*//*! @I2C控制参数结构体
|
||||
* @{
|
||||
*******************************************************************************/
|
||||
/*!
|
||||
* @I2C控制参数结构体.
|
||||
*
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
uint16_t bI2CEn :1; /*!< 使能I2C模块 */
|
||||
uint16_t bIntEn :1; /*!< 使能I2C中断 */
|
||||
uint16_t bWakeUpEn :1; /*!< I2C唤醒使能 */
|
||||
uint16_t bGCAEn :1; /*!< I2C通用启动地址使能 */
|
||||
uint16_t bAddressExt :1; /*!< I2C地址扩展选择 */
|
||||
uint16_t bRangeAddEn :1; /*!< 使能范围地址匹配 */
|
||||
uint16_t bFackEn :1; /*!< 使能快速ack */
|
||||
uint16_t bSMB_AlertEn :1; /*!< SMB 报警响应地址使能 */
|
||||
uint16_t bSecondAddressEn:1; /*!< 启用第二I2C地址 */
|
||||
uint16_t bETMeoutCountClockSelect:1; /*!< 超时计数器时钟选择 */
|
||||
uint16_t bSHTF2IntEn :1; /*!< SHTF2 中断使能 */
|
||||
uint16_t Reserve :5;
|
||||
}I2C_SettingType;
|
||||
/*! @} */
|
||||
|
||||
/******************************************************************************
|
||||
*
|
||||
*//*! @I2C配置结构体
|
||||
* @{
|
||||
*******************************************************************************/
|
||||
/*!
|
||||
* @I2C配置结构体.
|
||||
*
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
I2C_SettingType sSetting;
|
||||
uint16_t u16F; /*!< 设置I2C模块的波特率 */
|
||||
uint16_t u16OwnA1; /*!< 从机地址 */
|
||||
uint16_t u16OwnA2; /*!< SMBus使用的从机地址 */
|
||||
uint16_t u16RangeA; /*!< 范围地址 */
|
||||
uint16_t u16Filt; /*!< I2C输入干扰滤波器 */
|
||||
uint16_t u16Slt; /*!< SCL低超时周期 */
|
||||
|
||||
}I2C_ConfigType, *I2C_ConfigPtr;
|
||||
/*! @} */
|
||||
|
||||
/*!
|
||||
* @brief I2C 回调类型.
|
||||
*
|
||||
*/
|
||||
|
||||
typedef void (*I2C_CallbackType)(void);
|
||||
/*! @} */
|
||||
|
||||
/******************************************************************************
|
||||
******************************************************************************/
|
||||
|
||||
/*!
|
||||
* 内联函数
|
||||
*/
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 配置I2C发送模式.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_TxEnable(I2C_Type *pI2Cx)
|
||||
{
|
||||
pI2Cx->C1 |= I2C_C1_TX_MASK;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 配置I2C接收模式.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none.
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_RxEnable(I2C_Type *pI2Cx)
|
||||
{
|
||||
pI2Cx->C1 &= ~I2C_C1_TX_MASK;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 设置I2C波特率.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_SetBaudRate(I2C_Type *pI2Cx,uint32_t u32Bps)
|
||||
{
|
||||
pI2Cx->F = (uint8_t)u32Bps;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 使能通用地址启动.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none.
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_GeneralCallEnable(I2C_Type *pI2Cx)
|
||||
{
|
||||
pI2Cx->C2 |= I2C_C2_GCAEN_MASK;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief SMBus 报警响应地址使能.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_SMBusAlertEnable(I2C_Type *pI2Cx)
|
||||
{
|
||||
pI2Cx->SMB|= I2C_SMB_ALERTEN_MASK;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 范围地址匹配使能.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_RangeAddressEnable(I2C_Type *pI2Cx)
|
||||
{
|
||||
pI2Cx->C2 |= I2C_C2_RMEN_MASK;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief SHTF2 中断使能.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_SHTF2IntEnable(I2C_Type *pI2Cx)
|
||||
{
|
||||
pI2Cx->SMB |= I2C_SMB_SHTF2IE_MASK;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 超时计数器时钟选择.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_ETMeoutCounterClockSelect(I2C_Type *pI2Cx, uint8_t u8Clock)
|
||||
{
|
||||
if( u8Clock )
|
||||
{
|
||||
pI2Cx->SMB |= I2C_SMB_TCKSEL_MASK;
|
||||
}
|
||||
else
|
||||
{
|
||||
pI2Cx->SMB &= ~I2C_SMB_TCKSEL_MASK;
|
||||
}
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 获取I2C的状态.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return I2C的状态
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE uint8_t I2C_GetStatus(I2C_Type *pI2Cx)
|
||||
{
|
||||
return pI2Cx->S;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 清除特定的状态.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_ClearStatus(I2C_Type *pI2Cx, uint8_t u8ClearFlag)
|
||||
{
|
||||
pI2Cx->S |= u8ClearFlag;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 写数据到数据寄存器.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_WriteDataReg(I2C_Type *pI2Cx, uint8_t u8DataBuff)
|
||||
{
|
||||
pI2Cx->D = u8DataBuff;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 从数据寄存器读取数据.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return I2C数据寄存器值
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE uint8_t I2C_ReadDataReg(I2C_Type *pI2Cx )
|
||||
{
|
||||
return pI2Cx->D;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 检查I2C模式是否为发送.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return 是/否
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE uint8_t I2C_IsTxMode(I2C_Type *pI2Cx )
|
||||
{
|
||||
return(pI2Cx->C1 & I2C_C1_TX_MASK);
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 检查总线是否繁忙.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return 是/否
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE uint8_t I2C_IsBusy(I2C_Type *pI2Cx )
|
||||
{
|
||||
return (pI2Cx->S & I2C_S_BUSY_MASK);
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 确认信号是否被接收.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return 是/否
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE uint8_t I2C_IsReceivedAck(I2C_Type *pI2Cx )
|
||||
{
|
||||
return (pI2Cx->S & I2C_S_RXAK_MASK);
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 检查I2C是否为主机模式.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return 是/否.
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE uint8_t I2C_IsMasterMode(I2C_Type *pI2Cx )
|
||||
{
|
||||
return(pI2Cx->C1 & I2C_C1_MST_MASK);
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 检查有无低超时发生.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return 是/否.
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE uint8_t I2C_IsSMB_SLTF(I2C_Type *pI2Cx )
|
||||
{
|
||||
return (pI2Cx->SMB & I2C_SMB_SLTF_MASK);
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 检查有无高超时发生.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return 是/否.
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE uint8_t I2C_IsSMB_SHTF2(I2C_Type *pI2Cx )
|
||||
{
|
||||
return(pI2Cx->SMB & I2C_SMB_SHTF2_MASK);
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 清除SCL低超时标志.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none.
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_ClearSLTF(I2C_Type *pI2Cx )
|
||||
{
|
||||
pI2Cx->SMB |= I2C_SMB_SLTF_MASK;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 清除高超时标志位2.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_ClearSHTF2(I2C_Type *pI2Cx )
|
||||
{
|
||||
pI2Cx->SMB |= I2C_SMB_SHTF2_MASK;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 发送信号ACK.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none.
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_SendAck(I2C_Type *pI2Cx )
|
||||
{
|
||||
pI2Cx->C1 &= ~I2C_C1_TXAK_MASK;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 发送信号NACK.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none.
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_SendNack(I2C_Type *pI2Cx )
|
||||
{
|
||||
pI2Cx->C1 |= I2C_C1_TXAK_MASK;
|
||||
}
|
||||
|
||||
/*****************************************************************************//*!
|
||||
*
|
||||
* @brief 使能第二I2C地址.
|
||||
*
|
||||
* @param[in] pI2Cx I2C的基址.
|
||||
*
|
||||
* @return none.
|
||||
*
|
||||
*****************************************************************************/
|
||||
__STATIC_INLINE void I2C_SecondAddressEnable(I2C_Type *pI2Cx)
|
||||
{
|
||||
pI2Cx->SMB |= I2C_SMB_SIICAEN_MASK;
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
******************************************************************************/
|
||||
void I2C_Init(I2C_Type *pI2Cx,I2C_ConfigPtr pI2CConfig);
|
||||
uint8_t I2C_Start(I2C_Type *pI2Cx);
|
||||
uint8_t I2C_Stop(I2C_Type *pI2Cx);
|
||||
uint8_t I2C_RepeatStart(I2C_Type *pI2Cx);
|
||||
uint8_t I2C_IsTxMode(I2C_Type *pI2Cx );
|
||||
uint8_t I2C_IsBusy(I2C_Type *pI2Cx );
|
||||
uint8_t I2C_IsReceivedAck(I2C_Type *pI2Cx );
|
||||
uint8_t I2C_IsMasterMode(I2C_Type *pI2Cx );
|
||||
void I2C_ClearSHTF2(I2C_Type *pI2Cx );
|
||||
void I2C_ClearSLTF(I2C_Type *pI2Cx );
|
||||
uint8_t I2C_IsSMB_SHTF2(I2C_Type *pI2Cx );
|
||||
uint8_t I2C_IsSMB_SLTF(I2C_Type *pI2Cx );
|
||||
void I2C_TxEnable(I2C_Type *pI2Cx);
|
||||
void I2C_RxEnable(I2C_Type *pI2Cx);
|
||||
void I2C_IntEnable(I2C_Type *pI2Cx);
|
||||
void I2C_IntDisable(I2C_Type *pI2Cx);
|
||||
void I2C_SetBaudRate(I2C_Type *pI2Cx,uint32_t u32Bps);
|
||||
void I2C_SetSlaveAddress(I2C_Type *pI2Cx,uint16_t u16SlaveAddress);
|
||||
void I2C_GeneralCallEnable(I2C_Type *pI2Cx);
|
||||
void I2C_SMBusAlertEnable(I2C_Type *pI2Cx);
|
||||
void I2C_RangeAddressEnable(I2C_Type *pI2Cx);
|
||||
void I2C_SHTF2IntEnable(I2C_Type *pI2Cx);
|
||||
void I2C_ETMeoutCounterClockSelect(I2C_Type *pI2Cx, uint8_t u8Clock);
|
||||
void I2C_SetSCLLowETMeout(I2C_Type *pI2Cx, uint16_t u16ETMeout);
|
||||
uint8_t I2C_GetStatus(I2C_Type *pI2Cx);
|
||||
void I2C_ClearStatus(I2C_Type *pI2Cx, uint8_t u8ClearFlag);
|
||||
void I2C_SendAck(I2C_Type *pI2Cx );
|
||||
void I2C_SendNack(I2C_Type *pI2Cx );
|
||||
void I2C_SecondAddressEnable(I2C_Type *pI2Cx);
|
||||
void I2C_ClearStatus(I2C_Type *pI2Cx, uint8_t u8ClearFlag);
|
||||
void I2C_WriteDataReg(I2C_Type *pI2Cx, uint8_t u8DataBuff);
|
||||
uint8_t I2C_ReadDataReg(I2C_Type *pI2Cx );
|
||||
void I2C_Deinit(I2C_Type *pI2Cx);
|
||||
uint8_t I2C_WriteOneByte(I2C_Type *pI2Cx, uint8_t u8WrBuff);
|
||||
uint8_t I2C_ReadOneByte(I2C_Type *pI2Cx, uint8_t *pRdBuff, uint8_t u8Ack);
|
||||
uint8_t I2C_MasterSendWait(I2C_Type *pI2Cx,uint16_t u16SlaveAddress,uint8_t *pWrBuff,uint32_t u32Length);
|
||||
uint8_t I2C_MasterReadWait(I2C_Type *pI2Cx,uint16_t u16SlaveAddress,uint8_t *pRdBuff,uint32_t u32Length);
|
||||
void I2C0_SetCallBack( I2C_CallbackType pCallBack );
|
||||
void I2C1_SetCallBack( I2C_CallbackType pCallBack );
|
||||
|
||||
/*! @} */
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#endif //
|
||||
|
||||
|
||||
Reference in New Issue
Block a user