Mikroc, Canspiinitialize – ABL electronic PIC Microcontrollers PIC16 User Manual
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MikroElektronika: Development tools - Books - Compilers
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page
mikroC - C Compiler for Microchip PIC microcontrollers
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Prototype
void
CANSPIInitialize(char SJW, char BRP, char PHSEG1, char
PHSEG2, char PROPSEG, char CAN_CONFIG_FLAGS);
Description
Initializes CANSPI. All pending transmissions are aborted. Sets all mask registers to 0
to allow all messages.
Filter registers are set according to flag value:
if (CAN_CONFIG_FLAGS & CAN_CONFIG_VALID_XTD_MSG != 0)
// Set all filters to XTD_MSG
else if (config & CONFIG_VALID_STD_MSG != 0)
// Set all filters to STD_MSG
else
// Set half the filters to STD, and the rest to XTD_MSG
Parameters:
SJW
as defined in 18XXX8 datasheet (1–4)
BRP
as defined in 18XXX8 datasheet (1–64)
PHSEG1
as defined in 18XXX8 datasheet (1–8)
PHSEG2
as defined in 18XXX8 datasheet (1–8)
PROPSEG
as defined in 18XXX8 datasheet (1–8)
CAN_CONFIG_FLAGS
is formed from predefined constants (see CAN constants, page
145).
Requires
CANSPI must be in Config mode; otherwise the function will be ignored.
Example
init = CAN_CONFIG_SAMPLE_THRICE
&
CAN_CONFIG_PHSEG2_PRG_ON
&
CAN_CONFIG_STD_MSG
&
CAN_CONFIG_DBL_BUFFER_ON
&
CAN_CONFIG_VALID_XTD_MSG
&
CAN_CONFIG_LINE_FILTER_OFF;
...
CANSPIInitialize(1, 1, 3, 3, 1, init);
// initialize CANSPI
CANSPIInitialize