C++ (Cpp) Message::setExtended Examples

Example #1

File: can_2.cpp Project: Alex0704t/xpcc

// ----------------------------------------------------------------------------
// Low level function to receive a message from mailbox.
// Called by Rx Interrupt or by getMessage.
static void
readMailbox(xpcc::can::Message& message, uint32_t mailboxId)
{
	CAN_FIFOMailBox_TypeDef* mailbox = &CAN2->sFIFOMailBox[mailboxId];
	
	uint32_t rir = mailbox->RIR;
	if (rir & CAN_RI0R_IDE) {
		message.identifier = rir >> 3;
		message.setExtended();
	}

Example #2

File: c_can.cpp Project: pikeBishop/OMP_IndMatrixDisplay

/* Low level function:
 * Called by interrupt or by getMessage to receive a message */
static void
readMessageObject(xpcc::can::Message & message, uint8_t messageObjectId)
{
	// NXP's data structure for sending CAN messages
	CAN_MSG_OBJ msg_obj;

	// Which Message Object to receive
	msg_obj.msgobj = messageObjectId;

	// Read Message Object from CAN controller
	(*xpcc::lpc::Can::rom)->pCAND->can_receive(&msg_obj);

	// Is extended Identifier?
	if (msg_obj.mode_id & CAN_MSGOBJ_EXT) {
		message.setExtended();
		// The lower 29 bits are the extended identifier
		message.identifier = msg_obj.mode_id & 0x1fffffff;
	}
	else {
		message.setExtended(false);
		// The lower 11 bits are the standard identifier
		message.identifier = msg_obj.mode_id & 0x7ff;
	}

	// Is RTR ?
	message.setRemoteTransmitRequest( (msg_obj.mode_id & CAN_MSGOBJ_RTR) );

	// Get DLC
	message.length = msg_obj.dlc;

	// Copy Data
	// TODO Use memcpy or reinterpret_cast
	for (uint8_t ii = 0; ii < message.length; ++ii)
	{
		message.data[ii] = msg_obj.data[ii];
	}
}