Mikroelektronika MIKROE-350 Fiche De Données

There is a number of constants predefined in the CANSPI library. You need to be
familiar with them in order to be able to use the library effectively. Check the exam-
ple at the end of the chapter.

The CANSPI_OP_MODE constants define CANSPI operation mode. Function
CANSPISetOperationMode expects one of these as it's argument:

const

CANSPI_MODE_BITS    

as byte = $E0 Use this to access opmode bits

CANSPI_MODE_NORMAL 

as byte = 0

CANSPI_MODE_SLEEP  

as byte = $20

CANSPI_MODE_LOOP   

as byte = $40

CANSPI_MODE_LISTEN 

as byte = $60

CANSPI_MODE_CONFIG 

as byte = $80

The CANSPI_CONFIG_FLAGS constants define flags related to the CANSPI mod-
ule configuration. The functions CANSPIInitialize, CANSPISetBaudRate,
CANSPISetMask and CANSPISetFilter expect one of these (or a bitwise combina-
tion) as their argument:

const

CANSPI_CONFIG_DEFAULT        

= $FF   ' 11111111

CANSPI_CONFIG_PHSEG2_PRG_BIT 

= $01

CANSPI_CONFIG_PHSEG2_PRG_ON  

= $FF   ' XXXXXXX1

CANSPI_CONFIG_PHSEG2_PRG_OFF 

= $FE   ' XXXXXXX0

CANSPI_CONFIG_LINE_FILTER_BIT 

as byte = $02

CANSPI_CONFIG_LINE_FILTER_ON  

as byte = $FF   ' XXXXXX1X

CANSPI_CONFIG_LINE_FILTER_OFF 

as byte = $FD   ' XXXXXX0X

CANSPI_CONFIG_SAMPLE_BIT      

as byte = $04

CANSPI_CONFIG_SAMPLE_ONCE     

as byte = $FF   ' XXXXX1XX

CANSPI_CONFIG_SAMPLE_THRICE   

as byte = $FB   ' XXXXX0XX

CANSPI_CONFIG_MSG_TYPE_BIT    

as byte = $08

CANSPI_CONFIG_STD_MSG         

as byte = $FF   ' XXXX1XXX

CANSPI_CONFIG_XTD_MSG         

as byte = $F7   ' XXXX0XXX

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