User manual

mikroBasic PRO for dsPIC30/33 and PIC24
MikroElektronika
265
CANSPIGetOperationMode
CANSPIInit
Prototype
sub function CANSPIGetOperationMode() as byte
Description The function returns current operation mode of the CANSPI module. Check CANSPI_OP_MODE
constants or device datasheet for operation mode codes.
Parameters None.
Returns Current operation mode.
Requires The CANSPI routines are supported only by MCUs with the SPI module.
MCU has to be properly connected to mikroElektronika’s CANSPI Extra Board or similar hardware.
See connection example at the bottom of this page.
Example
‘ check whether the CANSPI module is in Normal mode and if it is do
something.
if (CANSPIGetOperationMode() = _CANSPI_MODE_NORMAL) then
...
end if
Notes None.
Prototype
sub procedure CANSPIInit(dim SJW, BRP, PHSEG1, PHSEG2, PROPSEG, CANSPI_
CONFIG_FLAGS as char)
Description Initializes the CANSPI module.
Stand-Alone CAN controller in the CANSPI module is set to:
- Disable CAN capture
- Continue CAN operation in Idle mode
- Do not abort pending transmissions
- Fcan clock: 4*Tcy (Fosc)
- Baud rate is set according to given parameters
- CAN mode: Normal
- Filter and mask registers IDs are set to zero
- Filter and mask message frame type is set according to CANSPI_CONFIG_FLAGS value
SAM, SEG2PHTS, WAKFIL and DBEN bits are set according to CANSPI_CONFIG_FLAGS value.
Parameters - SJW as dened in MCU’s datasheet (CAN Module)
- BRP as dened in MCU’s datasheet (CAN Module)
- PHSEG1 as dened in MCU’s datasheet (CAN Module)
- PHSEG2 as dened in MCU’s datasheet (CAN Module)
- PROPSEG as dened in MCU’s datasheet (CAN Module)
- CANSPI_CONFIG_FLAGS is formed from predened constants. See CANSPI_CONFIG_FLAGS
constants.
Returns Nothing.