MikroElektronika PIC Microcontrollers PIC18 Instrukcja Użytkownika Pobierz pdf (Strona 26)

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CAN_MODE_LISTEN Listen-only mode of operation

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CAN_MODE_CONFIG Configuration mode of operation

9.10.2 CANGetOperationMode

The CANGetOperationMode function returns the current CAN operation mode. The

function prototype is:

char CANGetOperat ionMode(void)

9.10.3 CANInitialize

The CANInitialize function initializes the CAN module. All mask registers are cleared

to 0 to allow all messages. Upon execution of this function, the normal mode is set. The

function prototype is:

void CANInitializ e(char SJW, char BRP, char PHSEG1, char PHSEG2,

char PROPEG, char CAN_CONFIG_FLAGS)

where

SJW is the synchronization jump width

BRP is the baud rate prescaler

PHSEG1 is the Phase_Seg1 timing parameter

PHSEG2 is the Phase_Seg2 timing parameter

PROPSEG is the Prop_Seg

CAN_CONFIG_FLAGS can be one of the following configuration flags:

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CAN_CONFIG_DEFAULT Default flags

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CAN_CONFIG_PHSEG2_PRG_ON Use supplied PHSEG2 value

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CAN_CONFIG_PHSEG2_PRG_OFF Use maximum of PHSEG1 or

information processing time (IPT),

whichever is greater

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CAN_CONFIG_LINE_FILTER_ON Use CAN bus line filter for wake-up

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CAN_CONFIG_FILTER_OFF Do not use CAN bus line filter

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