Error/Status Functions

These functions handle Status and Errors. More...

Functions
uint8_t	mcp2515_status (pi_mcp2515_t *pi_mcp2515)
	Check status via the STATUS instruction.
uint8_t	mcp2515_error_tx_count (pi_mcp2515_t *pi_mcp2515)
	Check the value of the 'transmit' (TX) error counter.
uint8_t	mcp2515_error_rx_count (pi_mcp2515_t *pi_mcp2515)
	Check the value of the 'receive' (RX) error counter.
uint8_t	mcp2515_error_flags (pi_mcp2515_t *pi_mcp2515)
	Fetch the contents of the error flag (EFLG) register.
bool	mcp2515_error (pi_mcp2515_t *pi_mcp2515)
	Check error flags in the EFLG register.
int	mcp2515_error_clear_errif (pi_mcp2515_t *pi_mcp2515)
	Clear error interrupt flag.

Detailed Description

These functions handle Status and Errors.

Function Documentation

mcp2515_error()

bool mcp2515_error

(

pi_mcp2515_t *

pi_mcp2515

)

Check error flags in the EFLG register.

Parameters

pi_mcp2515

the piMCP2515 handle.

Returns

true if any error flags are set.

mcp2515_error_clear_errif()

int mcp2515_error_clear_errif

(

pi_mcp2515_t *

pi_mcp2515

)

Clear error interrupt flag.

Parameters

pi_mcp2515

the piMCP2515 handle.

Returns

zero if success, otherwise non-zero.

mcp2515_error_flags()

uint8_t mcp2515_error_flags

(

pi_mcp2515_t *

pi_mcp2515

)

Fetch the contents of the error flag (EFLG) register.

Parameters

pi_mcp2515

the piMCP2515 handle.

Returns

contents of the error flag (EFLG) register.

mcp2515_error_rx_count()

uint8_t mcp2515_error_rx_count

(

pi_mcp2515_t *

pi_mcp2515

)

Check the value of the 'receive' (RX) error counter.

Parameters

pi_mcp2515

the piMCP2515 handle.

Returns

the RX error count.

mcp2515_error_tx_count()

uint8_t mcp2515_error_tx_count

(

pi_mcp2515_t *

pi_mcp2515

)

Check the value of the 'transmit' (TX) error counter.

Parameters

pi_mcp2515

the piMCP2515 handle.

Returns

the TX error count.

mcp2515_status()

uint8_t mcp2515_status

(

pi_mcp2515_t *

pi_mcp2515

)

Check status via the STATUS instruction.

Parameters

pi_mcp2515

the piMCP2515 handle.

Returns

the current status value.