AT07334: SAM4 TWI Master Mode Driver [APPLICATION NOTE]
42274A-MCU-05/2014
17
Data direction Parameter name Description
[in] clk The current running system clock
frequency
[in] cycles Clock cycles for data setup count
Table 4-24. Return Values
Return value Description
STATUS_OK Transaction is successful
ERR_INVALID_ARG Invalid arg resulting in wrong CWGR Exponential
4.5 Enumeration Definitions
4.5.1 Enum twim_transfer_status
Table 4-25. Members
Enum value Description
TWI_SUCCESS TWI Transaction Success
TWI_INVALID_ARGUMENT Invalid Argument Passed
TWI_ARBITRATION_LOST Bus Arbitration Lost
TWI_NO_CHIP_FOUND Slave Not Found
TWI_RECEIVE_NACK Data No Acknowledgement Received
TWI_SEND_NACK Data No Acknowledgement Send
TWI_INVALID_CLOCK_DIV Invalid Clock Divider Value
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