Lpc2000

Hi folks,

First off, I'm using the LPC2294.

I am finding my CAN messages seemingly delayed by one message. In my main loop 
I have:

if ((CAN1GSR  & 0x01) == 0x01)		
		{		
		QueueCAN1Out();		// Queue up the received  message to send out of the UART.
		CAN1CMR |= 0x04;		// Clear the had frame bit
		}

The call to QueueCAN1Out is triggered when I send out a CAN message from an 
external CAN node into the LPC. However, the first message I look at reads 
all its registers as being filled with zeros. If I then send another CAN 
message from the external CAN node, the data and the identifier are what was 
send out by the remote node on the first transmission. The third message  
reads the second message's data and identifier and so on. 

If I insert the line:

	temp = CAN1RID;

into the routine above, just to prove it's not a different part of my code 
that's at fault, the value in temp is always the identifier from the previous 
CAN mesaage. 

Has anyone ever come across this before? I've read through the datasheet and 
nothing seems to indicate why this would happen and I don't see anything in 
the errata sheet either. I have checked with a little CAN analyser and the 
messages being sent out from the external node seem correct. 

I've even tried reading the first message twice to see if I could flush out 
the phantom zeros, but I just read zeros again. It's only when I receive the 
second CAN message that the first message is flushed out. 

Anyone seen anything like this before? And if so, do you know what I'm doing 
wrong?!

Many thanks.

Rob.