Hi Ryan,
The following link is the documentation for extractAll function. The first input to extractAll method is the CAN Message object (can.Message).
Although, I was not able to completely understand the loop, here are some of my thoughts.
- The line start(canch) must be outside the loop just before the for statement. Starting the same CAN channel multiple times will result in an error.
- The receive method returns CAN Messages as can.Message objects. You must use a variable to store the return value.
canMsgs = receive(canch, i);
3. Also, receive(canch, i) - Receiving number of messages corresponding to your loop count. It is not clear as to why you would want that given that you want to monitor all messages and extract the required ID. Receiving Inf messages might be better (receives all that are available).
canMsgs = receive(canch, Inf);
4. See if filtering might work for you instead of using extractAll method. You need to set your filter before you start your CAN channel.
5. In the event you use extractAll method, pass the output of your receive function as the input to the extractAll method along with ID and IDType.
HTH,
Shankar
