CMSIS I2C Driver Function Documentation
ARM_I2C_GetVersion
ARM_DRIVER_VERSION ARM_I2C_GetVersion()
Location: Driver_I2C.c:38
ARM_I2C_GetCapabilities
ARM_I2C_CAPABILITIES ARM_I2C_GetCapabilities()
Location: Driver_I2C.c:43
ARM_I2C_Initialize
int32_t ARM_I2C_Initialize(ARM_I2C_SignalEvent_t cb_event)
Location: Driver_I2C.c:48
Parameters
Direction | Name | Description |
---|---|---|
in |
cb_event |
Pointer to ARM_I2C_SignalEvent |
ARM_I2C_Uninitialize
int32_t ARM_I2C_Uninitialize()
Location: Driver_I2C.c:52
ARM_I2C_PowerControl
int32_t ARM_I2C_PowerControl(ARM_POWER_STATE state)
Location: Driver_I2C.c:56
Parameters
Direction | Name | Description |
---|---|---|
in |
state |
Power state |
ARM_I2C_MasterTransmit
int32_t ARM_I2C_MasterTransmit(uint32_t addr, const uint8_t * data, uint32_t num, bool xfer_pending)
Location: Driver_I2C.c:72
Parameters
Direction | Name | Description |
---|---|---|
in |
addr |
Slave address (7-bit or 10-bit) |
in |
data |
Pointer to buffer with data to transmit to I2C Slave |
in |
num |
Number of data bytes to transmit |
in |
xfer_pending |
Transfer operation is pending - Stop condition will not be generated |
ARM_I2C_MasterReceive
int32_t ARM_I2C_MasterReceive(uint32_t addr, uint8_t * data, uint32_t num, bool xfer_pending)
Location: Driver_I2C.c:76
Parameters
Direction | Name | Description |
---|---|---|
in |
addr |
Slave address (7-bit or 10-bit) |
out |
data |
Pointer to buffer for data to receive from I2C Slave |
in |
num |
Number of data bytes to receive |
in |
xfer_pending |
Transfer operation is pending - Stop condition will not be generated |
ARM_I2C_SlaveTransmit
int32_t ARM_I2C_SlaveTransmit(const uint8_t * data, uint32_t num)
Location: Driver_I2C.c:80
Parameters
Direction | Name | Description |
---|---|---|
in |
data |
Pointer to buffer with data to transmit to I2C Master |
in |
num |
Number of data bytes to transmit |
ARM_I2C_SlaveReceive
int32_t ARM_I2C_SlaveReceive(uint8_t * data, uint32_t num)
Location: Driver_I2C.c:84
Parameters
Direction | Name | Description |
---|---|---|
out |
data |
Pointer to buffer for data to receive from I2C Master |
in |
num |
Number of data bytes to receive |
ARM_I2C_GetDataCount
int32_t ARM_I2C_GetDataCount()
Location: Driver_I2C.c:88
Return
ARM_I2C_Control
int32_t ARM_I2C_Control(uint32_t control, uint32_t arg)
Location: Driver_I2C.c:92
Parameters
Direction | Name | Description |
---|---|---|
in |
control |
Operation |
in |
arg |
Argument of operation (optional) |
ARM_I2C_GetStatus
ARM_I2C_STATUS ARM_I2C_GetStatus()
Location: Driver_I2C.c:124
ARM_I2C_SignalEvent
void ARM_I2C_SignalEvent(uint32_t event)
Location: Driver_I2C.c:128
Parameters
Direction | Name | Description |
---|---|---|
in |
event |
I2C_events notification mask |