低レベルI2C¶
この関数群を通常使うことはありません。TwoWireクラスを利用して呼び出してください。
利用例¶
メンバー¶
i2cInit()¶
i2c_t* i2cInit(uint8_t i2c_num, int8_t sda, int8_t scl, uint32_t clk_speed)引数
- uint8_t
i2c_num - int8_t
sda - int8_t
scl - uint32_t
clk_speed
戻り値
i2c_t*
i2cRelease()¶
void i2cRelease(i2c_t *i2c)引数
- i2c_t*
i2c
戻り値
void
i2cWrite()¶
i2c_err_t i2cWrite(i2c_t *i2c, uint16_t address, uint8_t *buff, uint16_t size, bool sendStop, uint16_t timeOutMillis)引数
- i2c_t*
i2c - uint16_t
address - uint8_t *
buff - uint16_t
size - bool
sendStop - uint16_t
timeOutMillis
戻り値
i2c_err_t
i2cRead()¶
i2c_err_t i2cRead(i2c_t *i2c, uint16_t address, uint8_t *buff, uint16_t size, bool sendStop, uint16_t timeOutMillis, uint32_t *readCount)引数
- i2c_t*
i2c - uint16_t
address - uint8_t *
buff - uint16_t
size - bool
sendStop - uint16_t
timeOutMillis - uint32_t *
readCount
戻り値
i2c_err_t
i2cFlush()¶
i2c_err_t i2cFlush(i2c_t *i2c)引数
- i2c_t*
i2c
戻り値
i2c_err_t
i2cSetFrequency()¶
i2c_err_t i2cSetFrequency(i2c_t *i2c, uint32_t clk_speed)引数
- i2c_t*
i2c - uint32_t
clk_speed
戻り値
i2c_err_t
i2cGetFrequency()¶
uint32_t i2cGetFrequency(i2c_t *i2c)引数
- i2c_t*
i2c
戻り値
uint32_t
i2cGetStatus()¶
uint32_t i2cGetStatus(i2c_t *i2c)引数
- i2c_t*
i2c
戻り値
uint32_t
i2cAttachSCL()¶
i2c_err_t i2cAttachSCL(i2c_t *i2c, int8_t scl)引数
- i2c_t*
i2c - int8_t
scl
戻り値
i2c_err_t
i2cDetachSCL()¶
i2c_err_t i2cDetachSCL(i2c_t *i2c, int8_t scl)引数
- i2c_t*
i2c - int8_t
scl
戻り値
i2c_err_t
i2cAttachSDA()¶
i2c_err_t i2cAttachSDA(i2c_t *i2c, int8_t sda)引数
- i2c_t*
i2c - int8_t
sda
戻り値
i2c_err_t
i2cDetachSDA()¶
i2c_err_t i2cDetachSDA(i2c_t *i2c, int8_t sda)引数
- i2c_t*
i2c - int8_t
sda
戻り値
i2c_err_t
i2cProcQueue()¶
i2c_err_t i2cProcQueue(i2c_t *i2c, uint32_t *readCount, uint16_t timeOutMillis)引数
- i2c_t*
i2c - uint32_t *
readCount - uint16_t
timeOutMillis
戻り値
i2c_err_t
i2cAddQueueWrite()¶
i2c_err_t i2cAddQueueWrite(i2c_t *i2c, uint16_t i2cDeviceAddr, uint8_t *dataPtr, uint16_t dataLen, bool SendStop, EventGroupHandle_t event)引数
- i2c_t*
i2c - uint16_t
i2cDeviceAddr - uint8_t *
dataPtr - uint16_t
dataLen - bool
SendStop - EventGroupHandle_t
event
戻り値
i2c_err_t
i2cAddQueueRead()¶
i2c_err_t i2cAddQueueRead(i2c_t *i2c, uint16_t i2cDeviceAddr, uint8_t *dataPtr, uint16_t dataLen, bool SendStop, EventGroupHandle_t event)引数
- i2c_t*
i2c - uint16_t
i2cDeviceAddr - uint8_t *
dataPtr - uint16_t
dataLen - bool
SendStop - EventGroupHandle_t
event
戻り値
i2c_err_t
i2cDebug()¶
uint32_t i2cDebug(i2c_t *, uint32_t setBits, uint32_t resetBits)引数
- i2c_t* ``
- uint32_t
setBits - uint32_t
resetBits
戻り値
uint32_t