Function usart

Initializes the device.

enum status_code usart_init(
		struct usart_module *const module,
		Sercom *const hw,
		const struct usart_config *const config)

Initializes the USART device based on the setting specified in the configuration struct.

Table 1. Parameters
Data direction	Parameter name	Description
[out]	module	Pointer to USART device
[in]	hw	Pointer to USART hardware instance
[in]	config	Pointer to configuration struct

Returns

Status of the initialization.

Table 2. Return Values
Return value	Description
STATUS_OK	The initialization was successful
STATUS_BUSY	The USART module is busy resetting
STATUS_ERR_DENIED	The USART has not been disabled in advance of initialization
STATUS_ERR_INVALID_ARG	The configuration struct contains invalid configuration
STATUS_ERR_ALREADY_INITIALIZED	The SERCOM instance has already been initialized with different clock configuration
STATUS_ERR_BAUD_UNAVAILABLE	The BAUD rate given by the configuration struct cannot be reached with the current clock configuration