How to use freertos to forward the received message content

荔枝星球宇航员

How to use freertos to forward the received message content [Copy link]

 

Can I use the original canRxCallback( ) function?

You still need to use IQRHandler() interrupt and message queue.

damiaa

The message queue can transfer information between tasks, interrupts and tasks.

If the information you are transmitting is only received and sent in a single task, without interruption and multitasking, then it is not necessary. Just use it directly.

If your sending and receiving are in different tasks, or between interrupts and tasks, then it is necessary.

The conjecture you mentioned above is used in multi-tasking, so you need to use a message queue.

荔枝星球宇航员

damiaa posted on 2022-6-4 20:01 It is said that message queues can transfer information between tasks and between interrupts and tasks. If the information you transfer is only received in a single task at the same time...

Thank you very much

freebsder

Generally, it will be transmitted through a message queue. Generally, the processing logic of CAN will be made into a thread/task and wait on this message queue.

inkinessray

It depends on how you use it. Different usages may lead to different processing methods. You gave too little information!

elec921

To use IQRHandler() interrupts, use message queues To use IQRHandler() interrupts, use message queues To use IQRHandler() interrupts, use message queues