調用順序
1、USCI_B_I2C_initMaster
一些基礎配置（速率、地址等）
USCI_B_I2C_masterSendSingleByte()
主單字節傳輸
USCI_B_I2C_masterSendMultiByteStart()
USCI_B_I2C_masterSendMultiByteNext()
USCI_B_I2C_masterSendMultiByteFinish()
USCI_B_I2C_masterSendMultiByteStop()
主多字節傳輸
USCI_B_I2C_masterReceiveSingleStart()
USCI_B_I2C_masterReceiveSingle()
主字節接收
USCI_B_I2C_masterMultiByteReceiveStart()
USCI_B_I2C_masterReceiveMultiByteNext()
USCI_B_I2C_masterReceiveMultiByteFinish()
USCI_B_I2C_masterReceiveMultiByteStop()
主多字節接收
USCI_B_I2C_masterSendSingleByteWithTimeout()
超時單字節主傳輸
USCI_B_I2C_masterSendMultiByteStartWithTimeout()
USCI_B_I2C_masterSendMultiByteNextWithTimeout()
USCI_B_I2C_masterReceiveMultiByteFinishWithTimeout()
USCI_B_I2C_masterSendMultiByteStopWithTimeout()
超時多字節主接收
USCI_B_I2C_masterReceiveSingleStartWithTimeout()
超時單字節主接收
2、USCI_B_I2C_setSlaveAddress（USCI_B_I2C_initSlave()）
3、USCI_B_I2C_setMode
4、USCI_B_I2C_enable
5、USCI_B_I2C_enableInterrupt
API相關
USCI_B_I2C_slavePutData()
從機傳輸API
USCI_B_I2C_slaveGetData()
從站接收API
基礎庫函數
USCI_B_I2C_initMaster (uint16_t baseAddress,USCI_B_I2C_initMasterParam∗param)；初始化I2C
USCI_B_I2C_initSlave (uint16_t baseAddress,USCI_B_I2C_initSlaveParam ∗param)；初始化I2C從模塊
USCI_B_I2C_enable (uint16_t baseAddress)；使能I2C模塊
USCI_B_I2C_disable (uint16_t baseAddress)；禁用I2C模塊
USCI_B_I2C_setSlaveAddress (uint16_t baseAddress, uint8_t slaveAddress);設置 i2c 主機將在總線上尋找的地址
USCI_B_I2C_setMode (uint16_t baseAddress, uint16_t mode);設置 i2c 設備的模式。
USCI_B_I2C_slavePutData (uint16_t baseAddress, uint8_t transmitData)；從 i2c 模塊傳輸一個字節
（數值）USCI_B_I2C_slaveGetData (uint16_t baseAddress)；接收一個已經發送到 i2c 模塊的字節
（數值）USCI_B_I2C_isBusBusy (uint16_t baseAddress)；查看I2C是否占線
（數值）USCI_B_I2C_isBusy (uint16_t baseAddress)；（在將來的版本中可能會刪除 ）表示 I2C 是否忙碌。
（數值）USCI_B_I2C_masterIsStopSent (uint16_t baseAddress)；表明 stop 是否被發送
（數值）USCI_B_I2C_masterIsStartSent (uint16_t baseAddress)；顯示 start 是否已經發送
USCI_B_I2C_masterSendStart (uint16_t baseAddress)；主模塊使用此函數啟動啟動
USCI_B_I2C_enableInterrupt (uint16_t baseAddress, uint16_t mask)；使能中斷
USCI_B_I2C_disableInterrupt (uint16_t baseAddress, uint16_t mask)；禁用中斷
USCI_B_I2C_clearInterrupt (uint16_t baseAddress, uint16_t mask)；清除 i2c 中斷源
（數值）USCI_B_I2C_getInterruptStatus (uint16_t baseAddress, uint16_t mask)；獲取當前中斷狀態
USCI_B_I2C_masterSendSingleByte (uint16_t baseAddress, uint8_t txData)；從主機到從機進行單字節傳輸
（數值）USCI_B_I2C_masterReceiveSingleByte (uint16_t baseAddress)；從服務器接收字節信號
（bool）USCI_B_I2C_masterSendSingleByteWithTimeout (uint16_t baseAddress, uint8_ttxData, uint32_t timeout)；用超時從主機到從機進行單字節傳輸
USCI_B_I2C_masterSendMultiByteStart (uint16_t baseAddress, uint8_t txData)；開始從主機到從機的多字節傳輸
（bool）USCI_B_I2C_masterSendMultiByteStartWithTimeout (uint16_t baseAddress, uint8_ttxData, uint32_t timeout)；用超時啟動從主到從的多字節傳輸。
USCI_B_I2C_masterSendMultiByteNext (uint16_t baseAddress, uint8_t txData)；繼續從主機到從機的多字節傳輸
（bool）USCI_B_I2C_masterSendMultiByteNextWithTimeout (uint16_t baseAddress, uint8_ttxData, uint32_t timeout);用超時繼續從主機到從機的多字節傳輸。
USCI_B_I2C_masterSendMultiByteFinish (uint16_t baseAddress, uint8_t txData);完成從主機到從機的多字節傳輸
（bool） USCI_B_I2C_masterSendMultiByteFinishWithTimeout (uint16_t baseAddress, uint8_ttxData, uint32_t timeout）；用超時完成從主機到從機的多字節傳輸。
USCI_B_I2C_masterSendMultiByteStop (uint16_t baseAddress);在從主機到從機的多字節傳輸結束時發送停止字節。
(bool) USCI_B_I2C_masterSendMultiByteStopWithTimeout (uint16_t baseAddress, uint32_ttimeout);在多字節傳輸結束時用超時將停止字節從主機發送到從機。
USCI_B_I2C_masterReceiveMultiByteStart (uint16_t baseAddress）；在主端開始多字節接收
（數值）USCI_B_I2C_masterReceiveMultiByteNext (uint16_t baseAddress)；在主端一次啟動一個字節的多字節接收。
（數值）USCI_B_I2C_masterReceiveMultiByteFinish (uint16_t baseAddress)；在主端完成多字節接收
（bool） USCI_B_I2C_masterReceiveMultiByteFinishWithTimeout (uint16_t baseAddress,uint8_t ∗rxData, uint32_t timeout)；在主端用超時完成多字節接收
USCI_B_I2C_masterReceiveMultiByteStop (uint16_t baseAddress)；在主端的多字節接收結束時發送停止。
USCI_B_I2C_masterReceiveSingleStart (uint16_t baseAddress)；在主端啟動一個單字節接收。
（bool） USCI_B_I2C_masterReceiveSingleStartWithTimeout (uint16_t baseAddress, uint32_ttimeout)；在主端用超時啟動單個字節接收。
（數值）USCI_B_I2C_masterReceiveSingle (uint16_t baseAddress)；接收一個已經發送到 i2c 主模塊的字節。
（數值）uint32_t USCI_B_I2C_getReceiveBufferAddressForDMA (uint16_t baseAddress)；在DMA模式下獲取rx的緩沖區地址
（數值）USCI_B_I2C_getTransmitBufferAddressForDMA (uint16_t baseAddress)；在DMA模式下獲取tx的緩沖區地址。
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