AN1105 datasheet(22/100 Pages) STMICROELECTRONICS

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ST7 pCAN PERIPHERAL DRIVER

void CAN_It_Dis(void):

CAN_Status CAN_Get_Status (void):

u8 CAN_Get_TEC(void):

u8 CAN_Get_REC(void):

CAN_Switch_Error CAN_Switch_Off(WakeUp_Cause):

Description

CAN Cell Power-on initialization routine.

During its execution, all registers are initialized with values entered in can_custom.h

or calculated from the compilation options chosen

It initializes the transmission queue.

This function must be called in the main routine prior to any use of the CAN cell.

Possible return values: CAN_INIT_FAILURE and CAN_INIT_SUCCESS.

Comments

Calls CAN_Init() (See Section 3.2.2 "Internal Routines")

Input

Output

Description

Disables all CAN interrupts.

Comments

Input

Output

Current status of the cell

Description

Retrieves the current status of the CAN cell.

Possible return values: CAN_STANDBY, CAN_BUS_PASSIVE, CAN_BUS_OFF

and CAN_BUS_ACTIVE following the current state of the cell.

Comments

Useful if the STATUS_CHANGE_NOTIFICATION option is enabled in can_custom.h

Input

Output

Value of the TECR register (Transmission Error Counter)

Description

Returns the value of the TECR

Comments

Input

Output

Value of the RECR register (Reception Error Counter)

Description

Returns the value of the RECR

Comments

Input

Chip Wake-up function: BUS_WAKEUP or SOFT_WAKEUP

Output

Error status

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