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C
/* x = SERCOM instance number */
/* I2C master mode and slave in interrupt mode */
bool SERCOMx_I2C_IsBusy(void)
Summary
Returns the Peripheral busy status
Description
I2C master mode
In master mode, this function returns true if the FLEXCOMx TWI module is busy with a transfer. The application can use this function to check if FLEXCOMx TWI module is busy before calling any of the data transfer functions. The library does not allow a data transfer operation if another transfer operation is already in progress.
I2C slave mode
In slave mode, the function returns true as soon as the address match event occurs and returns false after a STOP bit has been detected. The application can use this API to ensure no TWI transfer is in progress.
Precondition
SERCOMx_I2C_Initialize must have been called for the associated SERCOM instance.
Parameters
None.
Returns
| Param | Description |
|---|---|
| true | Busy |
| false | Not busy |
Example
// wait for the current transfer to complete while(SERCOM0_I2C_IsBusy( ));
Remarks
None.